merge #101 101b: anteprima DXF disegnata con path (Refs #101)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Jbf7qKuxsnAVjxthRy7dnB

src/backend/api/routers/tasks.py

@@ -250,6 +250,8 @@ async def create_task(
         file_type=data.file_type,
         annotations_json=data.annotations_json,
         vision_json=data.vision_json,
+        # #97: camera e modo di analisi (dict gia' validato dal modello)
+        acquisition_json=data.acquisition_json.model_dump() if data.acquisition_json else None,
         # #53 #55: ciclo (default dal tipo), chiusura, campi extra
         in_loop=data.in_loop if data.in_loop is not None else default_in_loop(data.task_type),
         at_close=data.at_close,

src/backend/api/routers/vision.py

@@ -23,7 +23,7 @@ from src.backend.api.routers.files import (
 from src.backend.config import settings
 from src.backend.database import get_db
 from src.backend.models.api.vision import (
-    VisionExecuteResponse, VisionMeasurementResult, VisionRecipeResponse,
+    VisionCheckResponse, VisionExecuteResponse, VisionMeasurementResult, VisionRecipeResponse,
     VisionRecipeUploadResponse, VisionReferenceImageResponse,
 )
 from src.backend.models.orm.vision import VisionResult
@@ -40,14 +40,22 @@ _IMAGE_EXTENSIONS = {
     "image/png": "png",
     "image/gif": "gif",
     "image/webp": "webp",
+    "image/bmp": "bmp",          # #99
+    "image/x-ms-bmp": "bmp",     # #99
 }
 
+# #99: the Opto bench cameras save BMP and the worker decodes it (PIL), so the
+# vision routes accept it on top of files.py's list. files.py is untouched: its
+# attachments are served by extension and BMP is not meant to be shown there.
+_VISION_IMAGE_TYPES = ALLOWED_IMAGE_TYPES | {"image/bmp", "image/x-ms-bmp"}
+
 # Sniffed from the first bytes, independent of the declared Content-Type: a
 # text file uploaded as "image/png" passes the header check above and must
-# still be caught before it reaches the worker as a bare 500 (#15). BMP and
+# still be caught before it reaches the worker as a bare 500 (#15). TIFF is
-# TIFF are included even though `_IMAGE_EXTENSIONS` does not accept them,
+# included even though the allow-list does not accept it (PIL, and so the
-# because PIL - and so the worker - can decode both; this check only refuses
+# worker, can decode it; browsers do not show it in the result); BMP is now
-# what is not a real image at all, it does not narrow the allow-list above.
+# also allowed (#99). This check only refuses what is not a real image at all,
+# it does not narrow the allow-list above.
 _IMAGE_SIGNATURES: tuple[tuple[bytes, ...], ...] = (
     (b"\x89PNG\r\n\x1a\n",),         # PNG
     (b"\xff\xd8\xff",),              # JPEG
@@ -83,7 +91,7 @@ async def _read_image(image: UploadFile) -> bytes:
     is in hand - the same two-step convention `files.py::upload_file` already
     uses, reused rather than reinvented here.
     """
-    if image.content_type not in ALLOWED_IMAGE_TYPES:
+    if image.content_type not in _VISION_IMAGE_TYPES:  # #99
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail=f"File type {image.content_type} not allowed. Must be an image.",
@@ -164,6 +172,22 @@ async def execute(
     )
 
 
+@router.post("/check", response_model=VisionCheckResponse)
+async def check(
+    task_id: int = Form(...),
+    image: UploadFile = File(...),
+    production_run_id: int | None = Form(None, gt=0),
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(require_measurement_tec),
+) -> VisionCheckResponse:
+    """#97: analisi di un frame senza salvare nulla (ne' risultato ne' misure)."""
+    task = await _task_or_404(db, task_id)
+    report = await vision_service.check_task(
+        db, task, await _read_image(image), production_run_id=production_run_id,
+    )
+    return VisionCheckResponse(**report)
+
+
 @router.get("/results/{result_id}/image")
 async def get_result_image(
     result_id: int,
@@ -342,6 +366,20 @@ async def preview(
     return await vision_service.preview(db, task, await _read_image(image))
 
 
+@router.post("/dxf-preview")
+async def dxf_preview(
+    dxf: UploadFile = File(...),
+    current_user: User = Depends(require_maker),
+) -> dict:
+    """#101: anteprima del DXF scelto nel wizard «Crea ricetta da DXF» (contorni
+    in mm e dimensioni), letto dal worker con lo stesso lettore del confronto.
+    Non scrive nulla; stesso limite di dimensione della rotta dxf-compare."""
+    dxf_bytes = await dxf.read()
+    if not validate_file_size(len(dxf_bytes)):
+        raise _422([f"the DXF exceeds {settings.max_upload_size_mb}MB"])
+    return await vision_service.dxf_preview(dxf_bytes)
+
+
 @router.post("/tasks/{task_id}/recipe/dxf-compare")
 async def create_dxf_compare_recipe(
     task_id: int,

src/backend/migrations/versions/021_task_acquisition.py

@@ -0,0 +1,31 @@
+"""recipe_tasks.acquisition_json (#97)
+
+recipe_tasks.acquisition_json: camera e modo di analisi scelti nel task,
+{"camera_url", "camera_source", "modo": "impulsiva" | "in_linea"}; NULL = la
+camera della stazione dell'operatore, analisi impulsiva (come prima).
+
+Revision ID: 021_task_acquisition
+Revises: 020_station_camera
+Create Date: 2026-10-24
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = '021_task_acquisition'
+down_revision: Union[str, None] = '020_station_camera'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # batch_alter_table come nelle migrazioni vicine: serve a SQLite
+    with op.batch_alter_table('recipe_tasks') as batch:
+        batch.add_column(sa.Column('acquisition_json', sa.JSON(), nullable=True))
+
+
+def downgrade() -> None:
+    with op.batch_alter_table('recipe_tasks') as batch:
+        batch.drop_column('acquisition_json')

src/backend/models/api/task.py

@@ -2,8 +2,9 @@
 import re
 from typing import Any, Literal, Optional
 
-from pydantic import BaseModel, ConfigDict, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, field_validator, model_validator
 
+from src.backend.models.api.station import _normalize_http_url
 from src.backend.models.orm.task import DEFAULT_LOOP_TASK_TYPES, TASK_TYPES
 
 # Kept in step with the ORM enum so the two cannot drift apart.
@@ -159,6 +160,30 @@ class SubtaskResponse(BaseModel):
     vision_output: Optional[str] = None
 
 
+class AcquisitionConfig(BaseModel):
+    """#97: camera (servizio + sorgente) e modo di analisi scelti nel task."""
+    camera_url: str = Field(..., max_length=500)
+    camera_source: str = Field(..., min_length=1, max_length=200)
+    modo: Literal["impulsiva", "in_linea"] = "impulsiva"
+
+    @field_validator("camera_url")
+    @classmethod
+    def _check_camera_url(cls, value: str) -> str:
+        # stessa normalizzazione delle stazioni; qui il vuoto non e' ammesso
+        normalized = _normalize_http_url(value, "camera_url")
+        if normalized is None:
+            raise ValueError("camera_url must not be empty")
+        return normalized
+
+    @field_validator("camera_source")
+    @classmethod
+    def _check_camera_source(cls, value: str) -> str:
+        value = value.strip()
+        if not value:
+            raise ValueError("camera_source must not be empty")
+        return value
+
+
 class TaskCreate(BaseModel):
     """Schema for creating a task."""
     title: str = Field(..., min_length=1, max_length=255)
@@ -169,6 +194,7 @@ class TaskCreate(BaseModel):
     file_type: Optional[str] = Field(None, pattern="^(image|pdf)$")
     annotations_json: Optional[dict[str, Any]] = None
     vision_json: Optional[dict] = None
+    acquisition_json: Optional[AcquisitionConfig] = None  # #97
     # #53: assente = default dal tipo (misure e check nel ciclo)
     in_loop: Optional[bool] = None
     at_close: bool = False
@@ -186,6 +212,7 @@ class TaskUpdate(BaseModel):
     file_type: Optional[str] = Field(None, pattern="^(image|pdf)$")
     annotations_json: Optional[dict[str, Any]] = None
     vision_json: Optional[dict] = None
+    acquisition_json: Optional[AcquisitionConfig] = None  # #97
     in_loop: Optional[bool] = None
     at_close: Optional[bool] = None
     fields: Optional[list[dict[str, Any]]] = None
@@ -207,6 +234,7 @@ class TaskResponse(BaseModel):
     file_type: Optional[str] = None
     annotations_json: Optional[dict[str, Any]] = None
     vision_json: Optional[dict] = None
+    acquisition_json: Optional[AcquisitionConfig] = None  # #97
     in_loop: bool = False
     at_close: bool = False
     fields: Optional[list[dict[str, Any]]] = None

src/backend/models/api/vision.py

@@ -24,6 +24,16 @@ class VisionExecuteResponse(BaseModel):
     failures: list[dict] = []
 
 
+class VisionCheckResponse(BaseModel):
+    """What `POST /api/vision/check` returns (#97): the analysis, nothing saved."""
+    outcome: str | None = None
+    overlay: list[dict] = []
+    failures: list[dict] = []
+    measurements: list[VisionMeasurementResult] = []
+    # esito della lettura della calibrazione: ok | no_camera | not_calibrated | unreachable
+    calibration: str
+
+
 class VisionRecipeOutput(BaseModel):
     """One numeric output a recipe offers to the quotes."""
     key: str

src/backend/models/orm/task.py

@@ -65,6 +65,9 @@ class RecipeTask(Base):
     # Cartella immutabile (relativa a upload_path) con recipe.json e i file di
     # meta della ricetta VisionSuite v2 (#46).
     vision_recipe_dir: Mapped[Optional[str]] = mapped_column(String(500), nullable=True)
+    # #97: camera e modo di analisi del task, {camera_url, camera_source, modo};
+    # NULL = camera della stazione corrente, analisi impulsiva.
+    acquisition_json: Mapped[Optional[dict]] = mapped_column(JSON, nullable=True)
     # #53: il task fa parte del ciclo di produzione (default dal tipo: misure e
     # check si', gli altri no; un task 'note' si puo' mettere nel ciclo a mano).
     in_loop: Mapped[bool] = mapped_column(

src/backend/services/recipe_service.py

@@ -117,6 +117,8 @@ async def _copy_tasks_to_version(
             vision_json=task.vision_json,
             # Cartella immutabile: basta il riferimento (#46).
             vision_recipe_dir=task.vision_recipe_dir,
+            # #97: camera e modo di analisi seguono il task nella nuova versione.
+            acquisition_json=task.acquisition_json,
             # #53 #55: ciclo, chiusura e campi extra seguono il task nella nuova versione.
             in_loop=task.in_loop,
             at_close=task.at_close,

src/backend/services/vision_service.py

@@ -224,6 +224,25 @@ async def dxf_compare_recipe(
     return body
 
 
+async def dxf_preview(dxf_bytes: bytes, worker_url: str | None = None) -> dict:
+    """#101: anteprima del DXF (contorni in mm + dimensioni) dal worker. Sostituita dai test."""
+    body = await call_worker_multipart(
+        "/dxf/preview",
+        files={"dxf": ("disegno.dxf", dxf_bytes, "application/octet-stream")},
+        data={},
+        worker_url=worker_url,
+    )
+    # forma minima del contratto: senza contorni e dimensioni non c'e' nulla da mostrare
+    required = {"contorni", "bbox", "larghezza_mm", "altezza_mm", "entita", "punti"}
+    if not required <= body.keys():
+        raise HTTPException(
+            status_code=status.HTTP_502_BAD_GATEWAY,
+            detail="the vision worker's answer was malformed: missing "
+                   + ", ".join(sorted(required - body.keys())),
+        )
+    return body
+
+
 # Stati di fetch_station_calibration (#83)
 CAL_OK = "ok"
 CAL_NO_CAMERA = "no_camera"            # la stazione non ha camera_url/camera_source
@@ -231,35 +250,36 @@ CAL_NOT_CALIBRATED = "not_calibrated"  # l'acquisitore risponde 404 (o un valore
 CAL_UNREACHABLE = "unreachable"        # l'acquisitore non risponde
 
 
-async def fetch_station_calibration(station: Station | None) -> tuple[dict | None, str]:
+async def fetch_calibration(
-    """Legge la calibrazione dall'acquisitore della stazione (C1, #83).
+    camera_url: str | None, camera_source: str | None, label: str = "",
+) -> tuple[dict | None, str]:
+    """Legge la calibrazione da un acquisitore (C1, #83; generalizzata in #97).
 
     GET {camera_url}/camera/calibration?source={camera_source}. La calibrazione
     vive nell'acquisitore: TMF la legge, non la tiene. Ritorna (dict, "ok")
     oppure (None, motivo) per distinguere «non calibrata» da «irraggiungibile».
-    Un px_per_mm non finito o <= 0 conta come non calibrata.
+    Un px_per_mm non finito o <= 0 conta come non calibrata. `label` serve
+    solo ai log (stazione o task).
     """
-    if station is None or not station.camera_url or not station.camera_source:
+    if not camera_url or not camera_source:
         return None, CAL_NO_CAMERA
-    url = f"{station.camera_url.rstrip('/')}/camera/calibration"
+    url = f"{camera_url.rstrip('/')}/camera/calibration"
     try:
         # timeout breve: e' una lettura di servizio, non deve bloccare l'execute
         async with httpx.AsyncClient(timeout=5.0) as client:
-            response = await client.get(url, params={"source": station.camera_source})
+            response = await client.get(url, params={"source": camera_source})
     except httpx.HTTPError as exc:
-        logger.warning("acquisitore della stazione %s non raggiungibile: %s", station.code, exc)
+        logger.warning("acquisitore %s non raggiungibile: %s", label, exc)
         return None, CAL_UNREACHABLE
     if response.status_code == status.HTTP_404_NOT_FOUND:
         return None, CAL_NOT_CALIBRATED
     if response.status_code != 200:
-        logger.warning(
+        logger.warning("acquisitore %s: HTTP %s", label, response.status_code)
-            "acquisitore della stazione %s: HTTP %s", station.code, response.status_code,
-        )
         return None, CAL_UNREACHABLE
     try:
         body = response.json()
     except ValueError:
-        logger.warning("acquisitore della stazione %s: risposta non JSON", station.code)
+        logger.warning("acquisitore %s: risposta non JSON", label)
         return None, CAL_UNREACHABLE
     px_per_mm = body.get("px_per_mm") if isinstance(body, dict) else None
     if not (_is_measurable(px_per_mm) and px_per_mm > 0):
@@ -267,6 +287,33 @@ async def fetch_station_calibration(station: Station | None) -> tuple[dict | Non
     return body, CAL_OK
 
 
+async def fetch_station_calibration(station: Station | None) -> tuple[dict | None, str]:
+    """Calibrazione dall'acquisitore della stazione (C1, #83): vedi fetch_calibration."""
+    if station is None:
+        return None, CAL_NO_CAMERA
+    return await fetch_calibration(
+        station.camera_url, station.camera_source, f"della stazione {station.code}",
+    )
+
+
+def task_camera(task: RecipeTask, station: Station | None) -> tuple[str | None, str | None]:
+    """Camera di un task (#97): acquisition_json, altrimenti quella della stazione."""
+    acquisition = task.acquisition_json
+    if isinstance(acquisition, dict) and acquisition.get("camera_url") and acquisition.get("camera_source"):
+        return acquisition["camera_url"], acquisition["camera_source"]
+    if station is not None:
+        return station.camera_url, station.camera_source
+    return None, None
+
+
+async def fetch_task_calibration(
+    task: RecipeTask, station: Station | None,
+) -> tuple[dict | None, str]:
+    """Calibrazione della camera del task (#97), stessi esiti CAL_* di fetch_calibration."""
+    camera_url, camera_source = task_camera(task, station)
+    return await fetch_calibration(camera_url, camera_source, f"del task {task.id}")
+
+
 async def get_station_calibration(station: Station | None) -> dict | None:
     """La calibrazione C1 della stazione, o None in ogni altro caso (#83)."""
     calibration, _ = await fetch_station_calibration(station)
@@ -498,14 +545,15 @@ async def execute_task(
         )
     # Worker della stazione della sessione di produzione (#45); senza run o senza URL: centrale
     station_url = None
-    # Calibrazione letta dall'acquisitore della stazione (#83); None = non c'e'
+    # Calibrazione letta dall'acquisitore (#83); None = non c'e'. #97: la camera e'
-    calibration = None
+    # quella del task se la ricetta ne sceglie una, altrimenti quella della stazione.
+    station = None
     if run is not None:
         station = (await db.execute(
             select(Station).where(Station.id == run.station_id)
         )).scalar_one_or_none()
         station_url = (station.vision_worker_url or None) if station is not None else None
-        calibration = await get_station_calibration(station)
+    calibration, _ = await fetch_task_calibration(task, station)
 
     if not task.vision_json:
         raise HTTPException(
@@ -623,6 +671,85 @@ async def execute_task(
     return result, saved, report
 
 
+async def check_task(
+    db: AsyncSession,
+    task: RecipeTask,
+    image_bytes: bytes,
+    *,
+    production_run_id: int | None = None,
+) -> dict:
+    """Esegue il grafo come execute_task ma NON salva nulla (#97).
+
+    Anteprima per l'operatore (ingresso nel task, ciclo «in linea»): niente
+    VisionResult, niente file, niente misure. L'esito per quota usa
+    calculate_pass_fail sulle quote con vision_output, nell'ordine di
+    marker_number come execute. Le quote che il grafo non produce (pezzo non
+    ancora in posizione) restano fuori da `measurements` e il perche' sta in
+    `failures`: un'anteprima non deve dare 422 a ogni frame.
+    """
+    if task.task_type not in VISION_TASK_TYPES:
+        raise HTTPException(
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
+            detail=f"task type {task.task_type!r} is not a camera measurement",
+        )
+    station = None
+    station_url = None
+    if production_run_id is not None:
+        # stesse regole di execute: 404 / 422 / 409 sulla sessione di produzione
+        run = await measurement_service.validate_run_for_version(
+            db, production_run_id, task.version_id,
+        )
+        station = (await db.execute(
+            select(Station).where(Station.id == run.station_id)
+        )).scalar_one_or_none()
+        station_url = (station.vision_worker_url or None) if station is not None else None
+    if not task.vision_json:
+        raise HTTPException(
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
+            detail="this task carries no vision graph",
+        )
+    quotes = (await db.execute(
+        select(RecipeSubtask)
+        .where(RecipeSubtask.task_id == task.id)
+        .where(RecipeSubtask.vision_output.is_not(None))
+        .order_by(RecipeSubtask.marker_number)
+    )).scalars().all()
+    if not quotes:
+        raise HTTPException(
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
+            detail="no quote on this task names a vision output",
+        )
+
+    # stessa calibrazione di execute: camera del task, altrimenti della stazione
+    calibration, cal_reason = await fetch_task_calibration(task, station)
+    worker_kwargs: dict = {}
+    if calibration is not None:
+        worker_kwargs["calibration"] = {"px_per_mm": float(calibration["px_per_mm"])}
+    report = await _call_worker(
+        image_bytes, task.vision_json, recipe_dir=task.vision_recipe_dir,
+        worker_url=station_url,
+        **worker_kwargs,
+    )
+    outputs = report["outputs"]
+    measurements = [
+        {
+            "subtask_id": q.id,
+            "value": float(outputs[q.vision_output]),
+            "pass_fail": measurement_service.calculate_pass_fail(
+                float(outputs[q.vision_output]), q,
+            )[0],
+        }
+        for q in quotes if _is_measurable(outputs.get(q.vision_output))
+    ]
+    return {
+        "outcome": report.get("outcome"),
+        "overlay": report.get("overlay") or [],
+        "failures": report.get("failures") or [],
+        "measurements": measurements,
+        "calibration": cal_reason,
+    }
+
+
 def _reference_file_path(reference: VisionReferenceImage) -> Path:
     return settings.upload_path / reference.path
 

src/backend/tests/test_migrations.py

@@ -341,3 +341,22 @@ class TestStationCameraMigration:
         assert "vision_worker_url" in cols("stations")  # la 019 resta
         command.upgrade(cfg, "head")  # e di nuovo su
         assert {"camera_url", "camera_source"} <= cols("stations")
+
+
+class TestTaskAcquisitionMigration:
+    """021_task_acquisition: recipe_tasks.acquisition_json, su e giu (#97)."""
+
+    def test_021_upgrade_and_downgrade(self, sqlite_database_url):
+        db_path, _ = sqlite_database_url
+        cfg = _alembic_config()
+
+        def cols(table):
+            return {c["name"] for c in _inspect(db_path).get_columns(table)}
+
+        command.upgrade(cfg, "head")
+        assert "acquisition_json" in cols("recipe_tasks")
+        command.downgrade(cfg, "020_station_camera")
+        assert "acquisition_json" not in cols("recipe_tasks")
+        assert "camera_url" in cols("stations")  # la 020 resta
+        command.upgrade(cfg, "head")  # e di nuovo su
+        assert "acquisition_json" in cols("recipe_tasks")

src/backend/tests/test_task_acquisition.py

@@ -0,0 +1,308 @@
+"""#97: camera e modo di analisi nel task, POST /api/vision/check senza salvataggio.
+
+Il worker e l'acquisitore non girano nei test: si fingono (fixture di
+test_vision_dxf_compare e test_vision_station_worker).
+"""
+import pytest
+from sqlalchemy import func, select
+
+from src.backend.config import settings
+from src.backend.models.orm.measurement import Measurement
+from src.backend.models.orm.task import RecipeSubtask, RecipeTask
+from src.backend.models.orm.vision import VisionResult
+from src.backend.tests.conftest import auth_headers, create_test_recipe
+from src.backend.tests.test_vision_copy_on_write import (
+    _current_task_and_subtask, _seed_measurement,
+)
+from src.backend.tests.test_vision_dxf_compare import (  # noqa: F401 (fixture acquisitore)
+    CAL, CAMERA_URL, acquisitore, redirect_uploads,
+)
+from src.backend.tests.test_vision_execute import an_image
+from src.backend.tests.test_vision_station_worker import (  # noqa: F401 (fixture worker_calls)
+    _camera_task, _execute, _station_with_run, worker_calls,
+)
+
+TASK_CAMERA = "http://10.0.0.50:8300"
+ACQ = {"camera_url": TASK_CAMERA, "camera_source": "camera:601020", "modo": "in_linea"}
+
+
+async def _task_with_acquisition(db_session, user_id, acquisition=ACQ):
+    recipe, task = await _camera_task(db_session, user_id)
+    task.acquisition_json = acquisition
+    await db_session.commit()
+    return recipe, task
+
+
+# --- modello e API del task ---------------------------------------------------
+
+@pytest.mark.asyncio
+async def test_create_task_stores_and_normalizes_acquisition(client, db_session, maker_user):
+    recipe = await create_test_recipe(db_session, maker_user.id)
+    resp = await client.post(
+        f"/api/recipes/{recipe.id}/tasks",
+        headers=auth_headers(maker_user),
+        json={
+            "title": "Camera", "task_type": "camera_measure",
+            "acquisition_json": {"camera_url": " http://h:1/ ", "camera_source": " camera:1 "},
+        },
+    )
+    assert resp.status_code == 201, resp.text
+    body = resp.json()
+    # url normalizzato come nelle stazioni, sorgente senza spazi, modo di default
+    expected = {"camera_url": "http://h:1", "camera_source": "camera:1", "modo": "impulsiva"}
+    assert body["acquisition_json"] == expected
+    db_session.expunge_all()
+    task = (await db_session.execute(
+        select(RecipeTask).where(RecipeTask.id == body["id"])
+    )).scalar_one()
+    assert task.acquisition_json == expected  # sul DB, non solo nella risposta
+    got = await client.get(f"/api/tasks/{body['id']}", headers=auth_headers(maker_user))
+    assert got.json()["acquisition_json"] == expected
+
+
+@pytest.mark.asyncio
+async def test_task_without_acquisition_is_null(client, db_session, maker_user):
+    recipe = await create_test_recipe(db_session, maker_user.id)
+    resp = await client.get(f"/api/recipes/{recipe.id}/tasks", headers=auth_headers(maker_user))
+    assert resp.json()[0]["acquisition_json"] is None
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("bad", [
+    {"camera_url": "ftp://h", "camera_source": "camera:1"},
+    {"camera_url": "  ", "camera_source": "camera:1"},
+    {"camera_url": "http://h", "camera_source": "   "},
+    {"camera_url": "http://h", "camera_source": "x" * 201},
+    {"camera_url": "http://h", "camera_source": "camera:1", "modo": "continua"},
+    {"camera_source": "camera:1"},
+])
+async def test_invalid_acquisition_is_422(client, db_session, maker_user, bad):
+    recipe = await create_test_recipe(db_session, maker_user.id)
+    resp = await client.post(
+        f"/api/recipes/{recipe.id}/tasks",
+        headers=auth_headers(maker_user),
+        json={"title": "Camera", "task_type": "camera_measure", "acquisition_json": bad},
+    )
+    assert resp.status_code == 422, resp.text
+
+
+@pytest.mark.asyncio
+async def test_update_sets_and_clears_acquisition(client, db_session, maker_user):
+    recipe = await create_test_recipe(db_session, maker_user.id)
+    _, task, _ = await _current_task_and_subtask(db_session, recipe.id)
+    resp = await client.put(
+        f"/api/tasks/{task.id}", headers=auth_headers(maker_user), json={"acquisition_json": ACQ},
+    )
+    assert resp.status_code == 200, resp.text
+    assert resp.json()["acquisition_json"] == ACQ
+    resp = await client.put(
+        f"/api/tasks/{task.id}", headers=auth_headers(maker_user), json={"acquisition_json": None},
+    )
+    assert resp.status_code == 200
+    assert resp.json()["acquisition_json"] is None  # null = camera della stazione
+
+
+@pytest.mark.asyncio
+async def test_copy_on_write_preserves_acquisition(client, db_session, maker_user):
+    recipe = await create_test_recipe(db_session, maker_user.id)
+    _, task, _ = await _current_task_and_subtask(db_session, recipe.id)
+    task.acquisition_json = ACQ
+    await db_session.flush()
+    await _seed_measurement(db_session, recipe.id, maker_user.id)
+    db_session.expunge_all()
+
+    resp = await client.put(
+        f"/api/recipes/{recipe.id}", headers=auth_headers(maker_user),
+        json={"change_notes": "forza il copy-on-write"},
+    )
+    assert resp.status_code == 200
+    db_session.expunge_all()
+    version, new_task, _ = await _current_task_and_subtask(db_session, recipe.id)
+    assert version.version_number == 2
+    assert new_task.acquisition_json == ACQ
+
+
+# --- calibrazione dalla camera del task ----------------------------------------
+
+@pytest.mark.asyncio
+async def test_execute_reads_calibration_from_the_task_camera(
+    client, db_session, measurement_tec_user, worker_calls, acquisitore,
+):
+    recipe, task = await _task_with_acquisition(db_session, measurement_tec_user.id)
+    # stazione con camera propria: la camera del task prevale
+    station, run = await _station_with_run(db_session, measurement_tec_user, recipe, None)
+    station.camera_url, station.camera_source = CAMERA_URL, "camera:A1"
+    await db_session.commit()
+    await _execute(client, measurement_tec_user, task, run)
+    assert acquisitore["urls"] == [(f"{TASK_CAMERA}/camera/calibration", {"source": "camera:601020"})]
+    assert worker_calls[0]["calibration"] == {"px_per_mm": CAL["px_per_mm"]}
+    result = (await db_session.execute(select(VisionResult))).scalars().one()
+    assert result.calibration_snapshot["px_per_mm"] == CAL["px_per_mm"]
+
+
+@pytest.mark.asyncio
+async def test_execute_task_camera_works_without_a_run(
+    client, db_session, measurement_tec_user, worker_calls, acquisitore,
+):
+    _, task = await _task_with_acquisition(db_session, measurement_tec_user.id)
+    await _execute(client, measurement_tec_user, task)  # niente sessione di produzione
+    assert acquisitore["urls"][0][0] == f"{TASK_CAMERA}/camera/calibration"
+    assert "calibration" in worker_calls[0]
+
+
+@pytest.mark.asyncio
+async def test_execute_falls_back_to_the_station_camera(
+    client, db_session, measurement_tec_user, worker_calls, acquisitore,
+):
+    recipe, task = await _camera_task(db_session, measurement_tec_user.id)  # acquisition_json null
+    station, run = await _station_with_run(db_session, measurement_tec_user, recipe, None)
+    station.camera_url, station.camera_source = CAMERA_URL, "camera:A1"
+    await db_session.commit()
+    await _execute(client, measurement_tec_user, task, run)
+    assert acquisitore["urls"] == [(f"{CAMERA_URL}/camera/calibration", {"source": "camera:A1"})]
+    assert worker_calls[0]["calibration"] == {"px_per_mm": CAL["px_per_mm"]}
+
+
+# --- POST /api/vision/check ----------------------------------------------------
+
+async def _check(client, user, task, run=None):
+    data = {"task_id": str(task.id)}
+    if run is not None:
+        data["production_run_id"] = str(run.id)
+    return await client.post(
+        "/api/vision/check", headers=auth_headers(user),
+        files={"image": ("p.png", an_image(), "image/png")}, data=data,
+    )
+
+
+async def _counts(db_session):
+    return tuple([
+        (await db_session.execute(select(func.count()).select_from(model))).scalar_one()
+        for model in (Measurement, VisionResult)
+    ])
+
+
+@pytest.mark.asyncio
+async def test_check_saves_nothing_and_reports_pass_fail(
+    client, db_session, measurement_tec_user, monkeypatch, acquisitore,
+):
+    _, task = await _task_with_acquisition(db_session, measurement_tec_user.id)
+    seen = {}
+
+    async def fake_call(image_bytes, graph, **kwargs):
+        seen.update(kwargs)
+        return {"outputs": {"t1.diameter": 11.0}, "failures": [{"tool_name": "t"}],
+                "overlay": [{"kind": "line"}], "outcome": "fail",
+                "engine_version": "e" * 40, "duration_ms": 3}
+
+    monkeypatch.setattr("src.backend.services.vision_service._call_worker", fake_call)
+    before = await _counts(db_session)
+
+    resp = await _check(client, measurement_tec_user, task)
+
+    assert resp.status_code == 200, resp.text
+    body = resp.json()
+    quote = (await db_session.execute(
+        select(RecipeSubtask).where(RecipeSubtask.task_id == task.id)
+    )).scalars().one()
+    assert body == {
+        "outcome": "fail", "overlay": [{"kind": "line"}], "failures": [{"tool_name": "t"}],
+        "measurements": [{"subtask_id": quote.id, "value": 11.0, "pass_fail": "fail"}],
+        "calibration": "ok",
+    }
+    assert seen["calibration"] == {"px_per_mm": CAL["px_per_mm"]}  # stessa calibrazione di execute
+    assert await _counts(db_session) == before  # niente misure ne' VisionResult
+    assert not list(settings.upload_path.rglob("*.overlay.json"))  # ne' file
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("value,expected", [(10.0, "pass"), (10.4, "warning"), (9.0, "fail")])
+async def test_check_pass_fail_levels(
+    client, db_session, measurement_tec_user, monkeypatch, value, expected,
+):
+    _, task = await _camera_task(db_session, measurement_tec_user.id)
+
+    async def fake_call(image_bytes, graph, **kwargs):
+        return {"outputs": {"t1.diameter": value}, "failures": [], "engine_version": "e" * 40}
+
+    monkeypatch.setattr("src.backend.services.vision_service._call_worker", fake_call)
+    resp = await _check(client, measurement_tec_user, task)
+    assert resp.json()["measurements"][0]["pass_fail"] == expected
+    assert resp.json()["calibration"] == "no_camera"  # senza camera ne' stazione
+
+
+@pytest.mark.asyncio
+async def test_check_calibration_reasons(
+    client, db_session, measurement_tec_user, worker_calls, acquisitore,
+):
+    _, task = await _task_with_acquisition(db_session, measurement_tec_user.id)
+    acquisitore["cal"] = None
+    assert (await _check(client, measurement_tec_user, task)).json()["calibration"] == "not_calibrated"
+    acquisitore["cal"] = "down"
+    assert (await _check(client, measurement_tec_user, task)).json()["calibration"] == "unreachable"
+    assert "calibration" not in worker_calls[-1]  # senza calibrazione la ricetta usa la sua
+
+
+@pytest.mark.asyncio
+async def test_check_omits_quotes_the_graph_did_not_produce(
+    client, db_session, measurement_tec_user, monkeypatch,
+):
+    _, task = await _camera_task(db_session, measurement_tec_user.id)
+
+    async def fake_call(image_bytes, graph, **kwargs):
+        return {"outputs": {}, "failures": [{"tool_name": "blob"}], "engine_version": "e" * 40}
+
+    monkeypatch.setattr("src.backend.services.vision_service._call_worker", fake_call)
+    resp = await _check(client, measurement_tec_user, task)
+    assert resp.status_code == 200  # un'anteprima non da' 422 a ogni frame
+    assert resp.json()["measurements"] == []
+    assert resp.json()["failures"] == [{"tool_name": "blob"}]
+
+
+@pytest.mark.asyncio
+async def test_check_422_without_graph_or_quotes_or_vision_type(
+    client, db_session, measurement_tec_user, worker_calls,
+):
+    _, task = await _camera_task(db_session, measurement_tec_user.id)
+    task.vision_json = None
+    await db_session.commit()
+    assert (await _check(client, measurement_tec_user, task)).status_code == 422
+
+    task.vision_json = {"schema_version": 1, "name": "p", "tools": []}
+    quote = (await db_session.execute(
+        select(RecipeSubtask).where(RecipeSubtask.task_id == task.id)
+    )).scalars().one()
+    quote.vision_output = None
+    await db_session.commit()
+    assert (await _check(client, measurement_tec_user, task)).status_code == 422
+
+    task.task_type = "measure"
+    await db_session.commit()
+    assert (await _check(client, measurement_tec_user, task)).status_code == 422
+
+
+@pytest.mark.asyncio
+async def test_check_with_run_uses_station_worker_and_station_camera(
+    client, db_session, measurement_tec_user, worker_calls, acquisitore,
+):
+    recipe, task = await _camera_task(db_session, measurement_tec_user.id)
+    station, run = await _station_with_run(
+        db_session, measurement_tec_user, recipe, "http://10.0.0.7:8100")
+    station.camera_url, station.camera_source = CAMERA_URL, "camera:A1"
+    await db_session.commit()
+    before = await _counts(db_session)
+    resp = await _check(client, measurement_tec_user, task, run)
+    assert resp.status_code == 200, resp.text
+    assert worker_calls[0]["worker_url"] == "http://10.0.0.7:8100"
+    assert acquisitore["urls"][0][0] == f"{CAMERA_URL}/camera/calibration"
+    assert await _counts(db_session) == before
+
+
+@pytest.mark.asyncio
+async def test_check_requires_login(client, db_session, measurement_tec_user, worker_calls):
+    _, task = await _camera_task(db_session, measurement_tec_user.id)
+    resp = await client.post(
+        "/api/vision/check", files={"image": ("p.png", an_image(), "image/png")},
+        data={"task_id": str(task.id)},
+    )
+    assert resp.status_code in (401, 403)

src/backend/tests/test_vision_bmp.py

@@ -0,0 +1,109 @@
+"""#99: the vision routes accept BMP (the Opto bench cameras save it); TIFF and
+non-images stay refused. files.py (attachments) is not touched by this."""
+import io
+
+import pytest
+from PIL import Image
+from sqlalchemy import select
+
+from src.backend.config import settings
+from src.backend.models.orm.vision import VisionReferenceImage
+from src.backend.tests.conftest import auth_headers, create_test_recipe
+from src.backend.tests.test_vision_upload_limits import (  # noqa: F401 - fixtures
+    recipe_parts, redirect_uploads, worker_says,
+)
+
+
+def a_bmp() -> bytes:
+    buffer = io.BytesIO()
+    Image.new("L", (64, 64), color=0).save(buffer, format="BMP")
+    return buffer.getvalue()
+
+
+def a_tiff() -> bytes:
+    buffer = io.BytesIO()
+    Image.new("L", (64, 64), color=0).save(buffer, format="TIFF")
+    return buffer.getvalue()
+
+
+async def a_camera_task(db_session, user):
+    recipe = await create_test_recipe(db_session, user.id)
+    _, task, _ = await recipe_parts(db_session, recipe.id)
+    task.task_type = "camera_measure"
+    task.vision_json = {"schema_version": 1, "name": "p", "tools": []}
+    await db_session.commit()
+    return task
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("content_type", ["image/bmp", "image/x-ms-bmp"])
+async def test_preview_accepts_a_bmp(
+    client, db_session, maker_user, worker_says, content_type,
+):
+    task = await a_camera_task(db_session, maker_user)
+    worker_says({"t1.diameter": 10.0})
+
+    response = await client.post(
+        "/api/vision/preview",
+        headers=auth_headers(maker_user),
+        files={"image": ("p.bmp", a_bmp(), content_type)},
+        data={"task_id": str(task.id)},
+    )
+
+    assert response.status_code != 400, response.text
+    assert response.status_code != 422, response.text
+
+
+@pytest.mark.asyncio
+async def test_preview_still_rejects_a_tiff(
+    client, db_session, maker_user, worker_says,
+):
+    task = await a_camera_task(db_session, maker_user)
+    worker_says({"t1.diameter": 10.0})
+
+    response = await client.post(
+        "/api/vision/preview",
+        headers=auth_headers(maker_user),
+        files={"image": ("p.tif", a_tiff(), "image/tiff")},
+        data={"task_id": str(task.id)},
+    )
+
+    assert response.status_code == 400
+
+
+@pytest.mark.asyncio
+async def test_a_text_file_declared_bmp_is_refused_on_its_bytes(
+    client, db_session, maker_user, worker_says,
+):
+    task = await a_camera_task(db_session, maker_user)
+    worker_says({"t1.diameter": 10.0})
+
+    response = await client.post(
+        "/api/vision/preview",
+        headers=auth_headers(maker_user),
+        files={"image": ("p.bmp", b"i am not an image", "image/bmp")},
+        data={"task_id": str(task.id)},
+    )
+
+    assert response.status_code == 422
+
+
+@pytest.mark.asyncio
+async def test_reference_image_bmp_is_saved_with_the_bmp_extension(
+    client, db_session, maker_user,
+):
+    recipe = await create_test_recipe(db_session, maker_user.id)
+    _, task, _ = await recipe_parts(db_session, recipe.id)
+    await db_session.commit()
+
+    response = await client.post(
+        "/api/vision/reference-images",
+        headers=auth_headers(maker_user),
+        files={"image": ("p.bmp", a_bmp(), "image/x-ms-bmp")},
+        data={"task_id": str(task.id)},
+    )
+
+    assert response.status_code == 200, response.text
+    saved = (await db_session.execute(select(VisionReferenceImage))).scalars().one()
+    assert saved.path.endswith(".bmp")
+    assert (settings.upload_path / saved.path).exists()

src/backend/tests/test_vision_dxf_preview.py

@@ -0,0 +1,90 @@
+"""#101: POST /api/vision/dxf-preview, anteprima del DXF nel wizard.
+
+Il worker non gira nei test: `vision_service.dxf_preview` si sostituisce.
+"""
+import pytest
+from fastapi import HTTPException
+
+from src.backend.config import settings
+from src.backend.services import vision_service
+from src.backend.tests.conftest import auth_headers
+
+BODY = {
+    "contorni": [[[0.0, 0.0], [10.0, 0.0], [10.0, 5.0], [0.0, 5.0], [0.0, 0.0]]],
+    "bbox": {"xmin": 0.0, "ymin": 0.0, "xmax": 10.0, "ymax": 5.0},
+    "larghezza_mm": 10.0, "altezza_mm": 5.0, "entita": 1, "punti": 5,
+}
+
+
+def _post(client, user, content=b"0\nEOF"):
+    return client.post(
+        "/api/vision/dxf-preview",
+        headers=auth_headers(user),
+        files={"dxf": ("d.dxf", content, "application/octet-stream")},
+    )
+
+
+@pytest.mark.asyncio
+async def test_dxf_preview_forwards_the_file_and_returns_the_worker_body(
+    client, maker_user, monkeypatch,
+):
+    calls = []
+
+    async def fake(dxf_bytes, worker_url=None):
+        calls.append(dxf_bytes)
+        return BODY
+
+    monkeypatch.setattr("src.backend.services.vision_service.dxf_preview", fake)
+    resp = await _post(client, maker_user, b"DXF-BYTES")
+    assert resp.status_code == 200, resp.text
+    assert resp.json() == BODY
+    assert calls == [b"DXF-BYTES"]
+
+
+@pytest.mark.asyncio
+async def test_dxf_preview_forwards_the_worker_422(client, maker_user, monkeypatch):
+    async def fake(dxf_bytes, worker_url=None):
+        raise HTTPException(status_code=422, detail="DXF illeggibile: file vuoto")
+
+    monkeypatch.setattr("src.backend.services.vision_service.dxf_preview", fake)
+    resp = await _post(client, maker_user, b"")
+    assert resp.status_code == 422
+    assert resp.json()["detail"] == "DXF illeggibile: file vuoto"
+
+
+@pytest.mark.asyncio
+async def test_dxf_preview_requires_maker(client, measurement_tec_user, monkeypatch):
+    async def fake(dxf_bytes, worker_url=None):
+        return BODY
+
+    monkeypatch.setattr("src.backend.services.vision_service.dxf_preview", fake)
+    resp = await _post(client, measurement_tec_user)
+    assert resp.status_code == 403
+
+
+@pytest.mark.asyncio
+async def test_dxf_preview_too_big_is_422(client, maker_user, monkeypatch):
+    monkeypatch.setattr(settings, "max_upload_size_mb", 0)
+    resp = await _post(client, maker_user, b"x" * 10)
+    assert resp.status_code == 422
+
+
+@pytest.mark.asyncio
+async def test_dxf_preview_service_posts_to_worker_and_checks_shape(monkeypatch):
+    seen = {}
+
+    async def fake_multipart(path, *, files, data, worker_url=None, timeout=120.0):
+        seen.update(path=path, files=files)
+        return BODY
+
+    monkeypatch.setattr(vision_service, "call_worker_multipart", fake_multipart)
+    assert await vision_service.dxf_preview(b"abc") == BODY
+    assert seen["path"] == "/dxf/preview" and seen["files"]["dxf"][1] == b"abc"
+
+    async def malformed(path, *, files, data, worker_url=None, timeout=120.0):
+        return {"contorni": []}
+
+    monkeypatch.setattr(vision_service, "call_worker_multipart", malformed)
+    with pytest.raises(HTTPException) as exc:
+        await vision_service.dxf_preview(b"abc")
+    assert exc.value.status_code == 502

src/frontend/flask_app/blueprints/maker.py

@@ -541,6 +541,55 @@ def api_list_stations_for_maker():
     return jsonify(out), 200
 
 
+def _camera_services() -> list[dict]:
+    """#97: servizi di acquisizione distinti delle stazioni che hanno una camera_url."""
+    services: dict[str, list[str]] = {}
+    for st in _stations_for_maker():
+        url = (st.get("camera_url") or "").strip().rstrip("/")
+        if not url:
+            continue
+        label = f"{st.get('code') or ''} - {st.get('name') or ''}"
+        services.setdefault(url, []).append(label)
+    return [{"camera_url": u, "stazioni": s} for u, s in services.items()]
+
+
+@maker_bp.route("/api/camera/servizi", methods=["GET"])
+@login_required
+@maker_or_admin_required
+def api_camera_services():
+    """#97: servizi di acquisizione fra cui scegliere la camera di un task."""
+    return jsonify({"servizi": _camera_services()}), 200
+
+
+@maker_bp.route("/api/camera/sorgenti", methods=["GET"])
+@login_required
+@maker_or_admin_required
+def api_camera_sources():
+    """#97: proxy di GET {url}/camera/sources; solo per i servizi delle stazioni."""
+    url = (request.args.get("url") or "").strip().rstrip("/")
+    # Niente richieste verso indirizzi arbitrari: url ammesso solo se e' un servizio noto
+    if not url or url not in {s["camera_url"] for s in _camera_services()}:
+        return jsonify({
+            "error": True,
+            "detail": _("Servizio di acquisizione non ammesso"),
+        }), 400
+    try:
+        resp = http_requests.get(f"{url}/camera/sources", timeout=15)
+        body = resp.json() if resp.status_code == 200 else None
+    except (http_requests.RequestException, ValueError) as exc:
+        return jsonify({
+            "error": True,
+            "detail": _("Servizio camera non raggiungibile: %(detail)s", detail=str(exc)),
+        }), 502
+    sources = body.get("sources") if isinstance(body, dict) else None
+    if not isinstance(sources, list):
+        return jsonify({
+            "error": True,
+            "detail": _("Risposta del servizio camera non valida (%(status)s)", status=resp.status_code),
+        }), 502
+    return jsonify({"sources": sources}), 200
+
+
 # Copia minima della logica di measure.api_vision_grab, ma per una stazione scelta per id
 @maker_bp.route("/api/stations/<int:station_id>/camera/grab", methods=["GET", "POST"])
 @login_required
@@ -652,6 +701,25 @@ def api_dxf_compare_recipe(task_id: int):
     return jsonify(resp), 200
 
 
+# #101: anteprima del DXF appena scelto nel wizard (contorni letti dal vision worker)
+@maker_bp.route("/api/vision/dxf-preview", methods=["POST"])
+@login_required
+@role_required("Maker")
+def api_dxf_preview():
+    """Proxy: anteprima del DXF (contorni, bbox, L x H) prima di creare la ricetta (#101)."""
+    dxf = request.files.get("dxf")
+    if dxf is None or not dxf.filename:
+        return jsonify({"error": True, "detail": _("Serve il file DXF")}), 400
+
+    resp = api_client.post(
+        "/api/vision/dxf-preview",
+        files={"dxf": (dxf.filename, dxf.read(), dxf.mimetype or "application/octet-stream")},
+    )
+    if resp.get("error"):
+        return jsonify(resp), resp.get("status_code", 500)
+    return jsonify(resp), 200
+
+
 @maker_bp.route("/api/files/<path:file_path>", methods=["GET"])
 @login_required
 def api_get_file(file_path: str):

src/frontend/flask_app/static/js/dxf_recipe_wizard.js

@@ -21,6 +21,11 @@ function dxfRecipeWizard(taskId, csrf, msgs) {
     imageName: '',
     imageSrc: '',
     dxfFile: null,
+    dxfPreview: null,      // #101: risposta di /dxf-preview {contorni, bbox, larghezza_mm, altezza_mm, entita, punti}
+    dxfPreviewBusy: false,
+    dxfPreviewError: '',
+    _dxfPreviewSeq: 0,     // #101: una risposta arrivata dopo un cambio di file si scarta
+    mmPx: '',              // #98: mm/px a mano (immagine da file), stringa con virgola o punto
     bandMm: 0.1,
     minPointsPct: 95,
     dark: true,            // spuntato = pezzo scuro su fondo chiaro (controluce)
@@ -59,8 +64,19 @@ function dxfRecipeWizard(taskId, csrf, msgs) {
     },
 
     get calibrated() { return this.calState === 'calibrated'; },
+    // #98: mm/px inserito a mano -> px/mm; null se vuoto o fuori da 0.00001..100 (limiti di /camera/calibrazioni/manuale, #95)
+    get manualPxMm() {
+      const raw = String(this.mmPx || '').trim().replace(',', '.');
+      if (!raw) return null;
+      const v = Number(raw);
+      if (!Number.isFinite(v) || v < 0.00001 || v > 100) return null;
+      return 1 / v;
+    },
+    // #98: compilato ma non valido -> errore in pagina
+    get mmPxInvalid() { return String(this.mmPx || '').trim() !== '' && this.manualPxMm === null; },
     get canRun() {
-      return !!(this.stationId && this.calibrated && this.imageFile && this.dxfFile) && !this.busy;
+      // #98: la scala a mano sostituisce la calibrazione della stazione
+      return !!(this.stationId && (this.calibrated || this.manualPxMm !== null) && this.imageFile && this.dxfFile) && !this.busy;
     },
 
     _setImage(file) {
@@ -75,7 +91,67 @@ function dxfRecipeWizard(taskId, csrf, msgs) {
       const f = ev.target.files && ev.target.files[0];
       if (f) this._setImage(f);
     },
-    onDxf(ev) { this.dxfFile = (ev.target.files && ev.target.files[0]) || null; this.result = null; },
+    onDxf(ev) {
+      this.dxfFile = (ev.target.files && ev.target.files[0]) || null;
+      this.result = null;
+      this.loadDxfPreview(); // #101: anteprima appena si sceglie il file
+    },
+
+    // #101: legge il DXF sul vision worker (via Flask e backend) e ne mostra i contorni
+    async loadDxfPreview() {
+      const seq = ++this._dxfPreviewSeq;
+      this.dxfPreview = null;
+      this.dxfPreviewError = '';
+      this.dxfPreviewBusy = false;
+      if (!this.dxfFile) return; // file tolto: tutto azzerato
+      this.dxfPreviewBusy = true;
+      try {
+        const fd = new FormData();
+        fd.append('dxf', this.dxfFile, this.dxfFile.name);
+        const resp = await fetch('/maker/api/vision/dxf-preview', {
+          method: 'POST', headers: { 'X-CSRFToken': this._csrf() }, body: fd,
+        });
+        const body = await resp.json().catch(() => ({}));
+        if (seq !== this._dxfPreviewSeq) return; // file cambiato nel frattempo
+        if (!resp.ok || body.error) this.dxfPreviewError = this._errorText(body);
+        else this.dxfPreview = body;
+      } catch (e) {
+        if (seq !== this._dxfPreviewSeq) return;
+        this.dxfPreviewError = this.msgs.requestFailed || String(e);
+      }
+      if (seq === this._dxfPreviewSeq) this.dxfPreviewBusy = false;
+    },
+
+    // #101: una stringa `points` per ogni contorno, per <polyline>
+    dxfPreviewPaths() {
+      const contorni = (this.dxfPreview && this.dxfPreview.contorni) || [];
+      return contorni.filter(c => c && c.length > 1).map(c => c.map(p => p[0] + ',' + p[1]).join(' '));
+    },
+
+    // #101: tutti i contorni in un solo attributo `d` ("M x y L x y ..."): x-for non funziona dentro <svg>
+    dxfPreviewD() {
+      const contorni = (this.dxfPreview && this.dxfPreview.contorni) || [];
+      return contorni.filter(c => c && c.length > 1)
+        .map(c => c.map((p, i) => (i ? 'L ' : 'M ') + p[0] + ' ' + p[1]).join(' ')).join(' ');
+    },
+
+    // #101: viewBox sul bbox con margine 5% (minimo 0.5 mm per lato)
+    dxfPreviewViewBox() {
+      const b = this.dxfPreview && this.dxfPreview.bbox;
+      if (!b) return '0 0 1 1';
+      const w = b.xmax - b.xmin, h = b.ymax - b.ymin;
+      const m = Math.max(0.5, 0.05 * Math.max(w, h));
+      return [b.xmin - m, b.ymin - m, w + 2 * m, h + 2 * m].map(v => +v.toFixed(3)).join(' ');
+    },
+
+    // #101: «L × H mm · N entità», decimale con virgola (2 decimali) secondo la lingua pagina
+    get dxfPreviewSummary() {
+      const d = this.dxfPreview;
+      if (!d) return '';
+      const f = v => Number(v).toLocaleString(document.documentElement.lang || 'it',
+        { minimumFractionDigits: 2, maximumFractionDigits: 2 });
+      return `${f(d.larghezza_mm)} × ${f(d.altezza_mm)} mm · ${d.entita} ${this.msgs.dxfEntities || 'entities'}`;
+    },
 
     // Frame dalla camera della stazione scelta
     async grab() {
@@ -120,6 +196,8 @@ function dxfRecipeWizard(taskId, csrf, msgs) {
         fd.append('image', this.imageFile, this.imageFile.name || 'capture.png');
         fd.append('dxf', this.dxfFile, this.dxfFile.name);
         fd.append('station_id', this.stationId);
+        // #98: scala a mano; il backend la preferisce alla calibrazione della stazione
+        if (this.manualPxMm !== null) fd.append('px_per_mm', String(this.manualPxMm));
         fd.append('band_mm', String(this.bandMm));
         fd.append('min_points_pct', String(this.minPointsPct));
         fd.append('polarity', this.dark ? 'dark' : 'light');

src/frontend/flask_app/static/js/task_acquisition.js

@@ -0,0 +1,70 @@
+// «Acquisizione» dell'editor task (#97): camera (servizio + sorgente) e modo di analisi
+// («impulsiva» / «in linea») dei task camera_measure e dxf_compare.
+// Legge /maker/api/camera/servizi e /maker/api/camera/sorgenti?url=. Lo stato scelto sta
+// nel componente padre (editTaskData.acquisition): questo componente carica solo gli elenchi.
+// Uso: x-data="taskAcquisition(() => editTaskData.acquisition, msgs)". Dipende da Alpine.js.
+function taskAcquisition(getAcq, msgs) {
+  return {
+    msgs: msgs || {},
+    servizi: [],
+    sources: [],
+    loading: false,
+    error: '',
+
+    async init() {
+      await this.loadServizi();
+      // Task con camera gia' scelta: elenco sorgenti del suo servizio
+      const acq = getAcq();
+      if (acq && acq.camera_url) await this.loadSources(acq.camera_url);
+    },
+
+    async loadServizi() {
+      try {
+        const resp = await fetch('/maker/api/camera/servizi');
+        if (resp.ok) this.servizi = (await resp.json()).servizi || [];
+      } catch (e) { console.error('taskAcquisition servizi', e); }
+    },
+
+    // Servizio salvato nel task ma non piu' fra quelli delle stazioni: resta selezionabile
+    serviziConCorrente() {
+      const acq = getAcq();
+      const out = this.servizi.slice();
+      if (acq && acq.camera_url && !out.some(s => s.camera_url === acq.camera_url)) {
+        out.push({ camera_url: acq.camera_url, stazioni: [] });
+      }
+      return out;
+    },
+
+    // Cambio servizio: la sorgente scelta non vale piu'
+    async onServizio() {
+      const acq = getAcq();
+      acq.camera_source = '';
+      this.sources = [];
+      this.error = '';
+      if (acq.camera_url) await this.loadSources(acq.camera_url);
+    },
+
+    async loadSources(url) {
+      this.loading = true;
+      this.error = '';
+      try {
+        const resp = await fetch('/maker/api/camera/sorgenti?url=' + encodeURIComponent(url));
+        const data = await resp.json().catch(() => ({}));
+        if (resp.ok) this.sources = data.sources || [];
+        else this.error = data.detail || this.msgs.genericError || '';
+      } catch (e) {
+        this.error = this.msgs.genericError || String(e);
+      } finally { this.loading = false; }
+    },
+
+    // Sorgente salvata ma non piu' elencata dal servizio: resta visibile
+    sourcesConCorrente() {
+      const acq = getAcq();
+      const out = this.sources.slice();
+      if (acq && acq.camera_source && !out.some(s => s.name === acq.camera_source)) {
+        out.push({ name: acq.camera_source, label: acq.camera_source });
+      }
+      return out;
+    }
+  };
+}

src/frontend/flask_app/templates/maker/task_editor.html

@@ -547,6 +547,71 @@
 
           <div class="tmf-card-body space-y-4">
 
+            <!-- ========== Acquisizione (#97): camera e modo di analisi, solo camera_measure / dxf_compare ========== -->
+            <template x-if="task.task_type === 'camera_measure' || task.task_type === 'dxf_compare'">
+              <div class="p-3 rounded-lg bg-[var(--bg-secondary)] border border-[var(--border-color)]">
+                <p class="text-xs font-semibold text-[var(--text-secondary)] uppercase tracking-wide mb-2">
+                  {{ _('Acquisizione') }}
+                </p>
+                <!-- Lettura: camera e modo salvati nel task -->
+                <template x-if="editingTask !== task.id">
+                  <div class="text-xs space-y-1">
+                    <template x-if="task.acquisition_json && task.acquisition_json.camera_url">
+                      <div class="space-y-1">
+                        <p><span class="text-[var(--text-secondary)]">{{ _('Servizio di acquisizione') }}:</span>
+                           <span class="font-mono" x-text="task.acquisition_json.camera_url"></span></p>
+                        <p><span class="text-[var(--text-secondary)]">{{ _('Sorgente') }}:</span>
+                           <span class="font-mono" x-text="task.acquisition_json.camera_source"></span></p>
+                        <p><span class="text-[var(--text-secondary)]">{{ _('Modo di analisi') }}:</span>
+                           <span x-text="task.acquisition_json.modo === 'in_linea' ? {{ _('Analisi in linea')|tojson_attr }} : {{ _('Analisi impulsiva')|tojson_attr }}"></span></p>
+                      </div>
+                    </template>
+                    <p x-show="!(task.acquisition_json && task.acquisition_json.camera_url)" class="text-[var(--text-muted)]">
+                      {{ _("Camera della stazione dell'operatore") }}
+                    </p>
+                  </div>
+                </template>
+                <!-- Modifica: servizio, sorgente, modo (salvati con «Salva» del task) -->
+                <template x-if="editingTask === task.id">
+                  <div class="space-y-3"
+                       x-data="taskAcquisition(() => editTaskData.acquisition, {{ {'genericError': _('Errore durante il caricamento delle sorgenti')}|tojson_attr }})">
+                    <div class="grid grid-cols-1 sm:grid-cols-2 gap-3">
+                      <div>
+                        <label class="tmf-label text-xs">{{ _('Servizio di acquisizione') }}</label>
+                        <select class="tmf-input text-xs" x-model="editTaskData.acquisition.camera_url" @change="onServizio()">
+                          <option value="">{{ _("Camera della stazione dell'operatore") }}</option>
+                          <template x-for="sv in serviziConCorrente()" :key="sv.camera_url">
+                            <option :value="sv.camera_url"
+                                    x-text="sv.camera_url + (sv.stazioni.length ? ' (' + sv.stazioni.join(', ') + ')' : '')"></option>
+                          </template>
+                        </select>
+                      </div>
+                      <div x-show="editTaskData.acquisition.camera_url">
+                        <label class="tmf-label text-xs">{{ _('Sorgente') }}</label>
+                        <select class="tmf-input text-xs" x-model="editTaskData.acquisition.camera_source" :disabled="loading">
+                          <option value="">{{ _('Scegli la sorgente') }}</option>
+                          <template x-for="src in sourcesConCorrente()" :key="src.name">
+                            <option :value="src.name" x-text="src.label || src.name"></option>
+                          </template>
+                        </select>
+                      </div>
+                    </div>
+                    <p x-show="error" class="text-xs text-red-500" x-text="error"></p>
+                    <div x-show="editTaskData.acquisition.camera_url" class="flex flex-wrap items-center gap-4 text-xs">
+                      <label class="flex items-center gap-2">
+                        <input type="radio" :name="'acq-modo-' + task.id" value="impulsiva" x-model="editTaskData.acquisition.modo">
+                        {{ _('Analisi impulsiva') }}
+                      </label>
+                      <label class="flex items-center gap-2">
+                        <input type="radio" :name="'acq-modo-' + task.id" value="in_linea" x-model="editTaskData.acquisition.modo">
+                        {{ _('Analisi in linea') }}
+                      </label>
+                    </div>
+                  </div>
+                </template>
+              </div>
+            </template>
+
             <!-- ========== Ricetta visione (#46): solo camera_measure / dxf_compare ========== -->
             <template x-if="task.task_type === 'camera_measure' || task.task_type === 'dxf_compare'">
               <div class="p-3 rounded-lg bg-[var(--bg-secondary)] border border-[var(--border-color)]"
@@ -597,7 +662,7 @@
                 <!-- ========== Crea ricetta da DXF (#83): solo dxf_compare ========== -->
                 <template x-if="task.task_type === 'dxf_compare'">
                   <div class="mt-4 pt-3 border-t border-[var(--border-color)]"
-                       x-data="dxfRecipeWizard(task.id, () => csrfToken(), {{ {'requestFailed': _('Richiesta non riuscita'), 'saved': _('Ricetta salvata')}|tojson_attr }})">
+                       x-data="dxfRecipeWizard(task.id, () => csrfToken(), {{ {'requestFailed': _('Richiesta non riuscita'), 'saved': _('Ricetta salvata'), 'dxfEntities': _('entità')}|tojson_attr }})">
                     <button type="button" class="btn btn-secondary text-xs" @click="toggle()">
                       {{ _('Crea ricetta da DXF') }}
                     </button>
@@ -615,13 +680,23 @@
                         <p x-show="stationId && calibrated" class="mt-1 text-xs text-emerald-600">
                           {{ _('Calibrazione') }}: <span x-text="calLabel"></span>
                         </p>
-                        <p x-show="stationId && calState && !calibrated" class="mt-1 text-xs text-amber-600">
+                        <p x-show="stationId && calState && !calibrated && manualPxMm === null" class="mt-1 text-xs text-amber-600">{# #98: nascosto con mm/px valido #}
                           <span x-text="calState === 'uncalibrated' ? {{ _('Stazione non calibrata: calibrala prima di creare la ricetta.')|tojson_attr }} : {{ _('Acquisitore non raggiungibile: impossibile leggere la calibrazione.')|tojson_attr }}"></span>
                           <a :href="calUrl" target="_blank" rel="noopener" x-show="calUrl"
                              class="font-medium text-primary hover:underline">{{ _('Calibra') }}</a>
                           <span class="text-[var(--text-muted)]">({{ _('oppure vedi la pagina Stazioni') }})</span>
                         </p>
                       </div>
+                      <!-- #98: mm/px a mano per immagini da file, sostituisce la calibrazione della stazione -->
+                      <div>
+                        <label class="tmf-label text-xs">{{ _('mm/px (immagine da file)') }}</label>
+                        <input type="text" inputmode="decimal" class="tmf-input text-xs" x-model="mmPx" placeholder="0,01406">
+                        <p x-show="manualPxMm !== null" class="mt-1 text-xs text-emerald-600">
+                          = <span x-text="fmt(manualPxMm)"></span> px/mm
+                        </p>
+                        <p x-show="mmPxInvalid" class="mt-1 text-xs text-amber-600">{{ _('mm/px non valido') }}</p>
+                        <p class="mt-1 text-xs text-[var(--text-muted)]">{{ _('Se compilato sostituisce la calibrazione della stazione; la scala resta salvata nella ricetta.') }}</p>
+                      </div>
                       <!-- Immagine: camera o file -->
                       <div class="grid grid-cols-1 sm:grid-cols-2 gap-3">
                         <div>
@@ -639,6 +714,20 @@
                         <div>
                           <label class="tmf-label text-xs">{{ _('Disegno (.dxf)') }}</label>
                           <input type="file" accept=".dxf" class="tmf-input text-xs" @change="onDxf($event)">
+                          <!-- #101: anteprima del disegno appena scelto il .dxf -->
+                          <p x-show="dxfPreviewBusy" class="mt-1 text-xs text-[var(--text-muted)]">{{ _('Lettura DXF…') }}</p>
+                          <p x-show="dxfPreviewError" class="mt-1 text-xs text-red-500" x-text="dxfPreviewError"></p>
+                          <div x-show="dxfPreview" class="mt-2">
+                            <svg x-bind:view-box.camel="dxfPreviewViewBox()" preserveAspectRatio="xMidYMid meet"
+                                 class="block w-full rounded border border-[var(--border-color)]"
+                                 style="max-height: 240px; background: var(--bg-primary);">
+                              <!-- #101: un solo path (x-for/template non funziona nel namespace SVG); view-box.camel perche' il parser HTML abbassa viewBox -->
+                              <path :d="dxfPreviewD()" fill="none" stroke="var(--color-primary, #2563eb)"
+                                    stroke-width="1.5" vector-effect="non-scaling-stroke"
+                                    stroke-linejoin="round"></path>
+                            </svg>
+                            <p class="mt-1 text-xs text-[var(--text-muted)]" x-text="dxfPreviewSummary"></p>
+                          </div>
                         </div>
                       </div>
                       <!-- Pochi parametri -->
@@ -1335,6 +1424,7 @@
 <script src="{{ url_for('static', filename='js/vision_recipe.js') }}"></script>
 <script src="{{ url_for('static', filename='js/station_calibration.js') }}"></script>
 <script src="{{ url_for('static', filename='js/dxf_recipe_wizard.js') }}"></script>
+<script src="{{ url_for('static', filename='js/task_acquisition.js') }}"></script>{# #97 #}
 <script src="{{ url_for('static', filename='vendor/pdf-3.11.174.min.js') }}"></script>
 <script>if(typeof pdfjsLib!=='undefined')pdfjsLib.GlobalWorkerOptions.workerSrc='{{ url_for('static', filename='vendor/pdf.worker-3.11.174.min.js') }}';</script>
 <script src="{{ url_for('static', filename='js/annotation-viewer.js') }}?v=6"></script>
@@ -1389,7 +1479,7 @@ function taskEditor() {
 
     // ---- Task CRUD state ----
     editingTask: null,
-    editTaskData: { title: '', directive: '', description: '', task_type: 'note', in_loop: false, in_loop_touched: false, at_close: false, fields: [] },
+    editTaskData: { title: '', directive: '', description: '', task_type: 'note', in_loop: false, in_loop_touched: false, at_close: false, fields: [], acquisition: { camera_url: '', camera_source: '', modo: 'impulsiva' } },  // #97
     newTask: { title: '', directive: '', description: '', task_type: 'note', in_loop: false, in_loop_touched: false, at_close: false, fields: [] },
     MAX_NOTE_FIELDS: 20,  // #55: limite campi per nota (stesso del backend)
     _fieldUid: 0,
@@ -1575,6 +1665,18 @@ function taskEditor() {
       this.newTask = { title: '', directive: '', description: '', task_type: 'note', in_loop: false, in_loop_touched: false, at_close: false, fields: [] };
     },
 
+    // #97: acquisition_json del task; null = camera della stazione (voce vuota o tipo senza camera)
+    _acquisitionPayload(obj) {
+      const a = obj.acquisition || {};
+      const usesCamera = obj.task_type === 'camera_measure' || obj.task_type === 'dxf_compare';
+      if (!usesCamera || !a.camera_url) return { ok: true, value: null };
+      if (!a.camera_source) {
+        this.errorMessage = {{ _("Scegli la sorgente della camera")|tojson }};
+        return { ok: false };
+      }
+      return { ok: true, value: { camera_url: a.camera_url, camera_source: a.camera_source, modo: a.modo === 'in_linea' ? 'in_linea' : 'impulsiva' } };
+    },
+
     // ---- #53 #55: ciclo di misura e campi della nota ----
 
     // #53: default di "nel ciclo" per tipo (stessa regola del backend)
@@ -1785,7 +1887,13 @@ function taskEditor() {
         in_loop: task.in_loop != null ? !!task.in_loop : this.loopDefault(task.task_type || 'note'),
         in_loop_touched: false,
         at_close: !!task.at_close,
-        fields: this._fieldsToState(task.fields)
+        fields: this._fieldsToState(task.fields),
+        // #97: camera e modo di analisi del task (acquisition_json), vuoti = camera della stazione
+        acquisition: {
+          camera_url: (task.acquisition_json && task.acquisition_json.camera_url) || '',
+          camera_source: (task.acquisition_json && task.acquisition_json.camera_source) || '',
+          modo: (task.acquisition_json && task.acquisition_json.modo) || 'impulsiva'
+        }
       };
       // Ensure expanded
       this.expandedTask = task.id;
@@ -1793,7 +1901,7 @@ function taskEditor() {
 
     cancelEditTask() {
       this.editingTask = null;
-      this.editTaskData = { title: '', directive: '', description: '', task_type: 'note', in_loop: false, in_loop_touched: false, at_close: false, fields: [] };
+      this.editTaskData = { title: '', directive: '', description: '', task_type: 'note', in_loop: false, in_loop_touched: false, at_close: false, fields: [], acquisition: { camera_url: '', camera_source: '', modo: 'impulsiva' } };  // #97
     },
 
     async updateTask(taskId) {
@@ -1801,6 +1909,8 @@ function taskEditor() {
       this.errorMessage = '';
       const fp = this._fieldsPayload(this.editTaskData);  // #55
       if (!fp.ok) return;
+      const acq = this._acquisitionPayload(this.editTaskData);  // #97
+      if (!acq.ok) return;
       this.saving = true;
 
       try {
@@ -1818,7 +1928,8 @@ function taskEditor() {
             // #53 #55: ciclo di misura, compilazione a fine produzione, campi della nota
             in_loop: !!this.editTaskData.in_loop,
             at_close: this.editTaskData.task_type === 'note' && !!this.editTaskData.at_close,
-            fields: fp.fields
+            fields: fp.fields,
+            acquisition_json: acq.value  // #97
           })
         });
 

src/frontend/flask_app/templates/statistics/dashboard.html

@@ -51,7 +51,9 @@
       <!-- Subtask -->
       <div>
         <label class="block text-xs font-medium text-steel mb-1">{{ _("Punto di misura") }}</label>
+        <!-- #100: il cambio di punto ricarica subito, senza «Applica filtri» -->
         <select x-model="selectedSubtaskId"
+                @change="loadData()"
                 :disabled="subtasks.length === 0"
                 class="w-full rounded-lg border border-[var(--border-color)] bg-[var(--bg-primary)] text-[var(--text-primary)] px-3 py-2 text-sm focus:ring-2 focus:ring-primary focus:border-primary disabled:opacity-50">
           <option value="">{{ _("Tutti i punti") }}</option>
@@ -287,20 +289,52 @@
               </div>
             </div>
           </template>
-          <template x-if="!capability || capability.cp == null">
+          <!-- #100: con «Tutti i punti» tabella con una riga per punto di misura -->
+          <template x-if="!loadedSubtaskId && capabilityAll.length > 0">
+            <div>
+              <table class="w-full text-sm">
+                <thead>
+                  <tr class="text-xs text-steel text-left">
+                    <th class="py-1 font-medium">{{ _("Punto di misura") }}</th>
+                    <th class="py-1 font-medium text-right">n</th>
+                    <th class="py-1 font-medium text-right">Cp</th>
+                    <th class="py-1 font-medium text-right">Cpk</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  <template x-for="row in capabilityAll" :key="row.subtask.id">
+                    <tr class="cursor-pointer hover:bg-[var(--bg-primary)] border-t border-[var(--border-color)]"
+                        @click="selectedSubtaskId = String(row.subtask.id); loadData()">
+                      <td class="py-1.5 pr-2" x-text="'#' + row.subtask.marker_number + ' — ' + row.subtask.description"></td>
+                      <td class="py-1.5 text-right font-mono" x-text="row.data && row.data.n != null ? row.data.n : '—'"></td>
+                      <td class="py-1.5 text-right font-mono font-bold"
+                          :class="row.data && row.data.cp != null ? capabilityColor(row.data.cp) : 'text-steel'"
+                          x-text="row.data && row.data.cp != null ? row.data.cp : '—'"></td>
+                      <td class="py-1.5 text-right font-mono font-bold"
+                          :class="row.data && row.data.cpk != null ? capabilityColor(row.data.cpk) : 'text-steel'"
+                          x-text="row.data && row.data.cpk != null ? row.data.cpk : '—'"></td>
+                    </tr>
+                  </template>
+                </tbody>
+              </table>
+              <p class="text-xs text-steel mt-3">{{ _("Scegli un punto per carta di controllo e istogramma") }}</p>
+            </div>
+          </template>
+          <template x-if="(!capability || capability.cp == null) && (loadedSubtaskId || capabilityAll.length === 0)">
             <p class="text-center text-steel py-8">{{ _("Seleziona un punto di misura per calcolare gli indici") }}</p>
           </template>
         </div>
       </div>
 
       <!-- Row 2: Carta di Controllo -->
-      <div class="bg-[var(--bg-secondary)] rounded-xl border border-[var(--border-color)] p-5 shadow-sm mb-6">
+      <!-- #100: x-show (non x-if) perche' renderCharts() cerca gli id nel DOM; nascosta senza punto -->
+      <div x-show="loadedSubtaskId" class="bg-[var(--bg-secondary)] rounded-xl border border-[var(--border-color)] p-5 shadow-sm mb-6">
         <h2 class="text-sm font-semibold text-steel uppercase tracking-wider mb-4">{{ _("Carta di Controllo") }}</h2>
         <div id="control-chart" style="min-height: 350px;"></div>
       </div>
 
       <!-- Row 3: Istogramma -->
-      <div class="bg-[var(--bg-secondary)] rounded-xl border border-[var(--border-color)] p-5 shadow-sm mb-6">
+      <div x-show="loadedSubtaskId" class="bg-[var(--bg-secondary)] rounded-xl border border-[var(--border-color)] p-5 shadow-sm mb-6">
         <h2 class="text-sm font-semibold text-steel uppercase tracking-wider mb-4">{{ _("Istogramma") }}</h2>
         <div id="histogram-chart" style="min-height: 350px;"></div>
       </div>
@@ -346,6 +380,8 @@ function spcDashboard() {
     subtasks: [],
 
     // Data state
+    loadedSubtaskId: '',  // #100 punto con cui sono stati caricati i dati (i pannelli dipendono da questo)
+    capabilityAll: [],  // #100 con «Tutti i punti»: [{subtask, data}] una riga per punto
     summary: null,
     capability: null,
     controlChart: null,
@@ -408,6 +444,8 @@ function spcDashboard() {
 
     async onRecipeChange() {
       this.selectedSubtaskId = '';
+      this.loadedSubtaskId = '';  // #100
+      this.capabilityAll = [];  // #100
       this.selectedRunId = '';  // #58
       this.runs = [];
       this.subtasks = [];
@@ -459,10 +497,11 @@ function spcDashboard() {
       if (this.selectedRunId) params.set('production_run_id', this.selectedRunId);  // #58
       if (this.dateFrom) params.set('date_from', new Date(this.dateFrom + 'T00:00:00').toISOString());
       if (this.dateTo) params.set('date_to', new Date(this.dateTo + 'T23:59:59.999').toISOString());
+      const requestedSubtaskId = this.selectedSubtaskId;  // #100 punto richiesto da questa chiamata
 
       try {
         // Parallel fetch of all endpoints
-        const [summaryResp, capabilityResp, controlResp, histogramResp] = await Promise.allSettled([
+        const [summaryResp, capabilityResp, controlResp, histogramResp, allResp] = await Promise.allSettled([
           fetch('/statistics/api/summary?' + params.toString()).then(r => r.json()),
           this.selectedSubtaskId
             ? fetch('/statistics/api/capability?' + params.toString()).then(r => r.json())
@@ -473,6 +512,17 @@ function spcDashboard() {
           this.selectedSubtaskId
             ? fetch('/statistics/api/histogram?' + params.toString()).then(r => r.json())
             : Promise.resolve(null),
+          // #100: senza punto scelto, capability di ogni punto della ricetta
+          requestedSubtaskId
+            ? Promise.resolve([])
+            : Promise.all(this.subtasks.map(st => {
+                const p = new URLSearchParams(params.toString());
+                p.set('subtask_id', st.id);
+                return fetch('/statistics/api/capability?' + p.toString())
+                  .then(r => r.json())
+                  .then(d => ({ subtask: st, data: (d && !d.error) ? d : null }))
+                  .catch(() => ({ subtask: st, data: null }));
+              })),
         ]);
 
         // Summary (always available)
@@ -505,6 +555,9 @@ function spcDashboard() {
           this.histogram = null;
         }
 
+        // #100: lista per-punto solo con «Tutti i punti»; con un punto resta il flusso di prima
+        this.capabilityAll = (allResp.status === 'fulfilled' && Array.isArray(allResp.value)) ? allResp.value : [];
+        this.loadedSubtaskId = requestedSubtaskId;
         this.hasData = true;
 
         // Render charts after DOM update
@@ -522,7 +575,7 @@ function spcDashboard() {
 
     renderCharts() {
       // Control chart
-      if (this.controlChart && this.selectedSubtaskId) {
+      if (this.controlChart && this.loadedSubtaskId) {  // #100
         renderControlChart('control-chart', this.controlChart);
       } else {
         const el = document.getElementById('control-chart');
@@ -530,7 +583,7 @@ function spcDashboard() {
       }
 
       // Histogram
-      if (this.histogram && this.selectedSubtaskId) {
+      if (this.histogram && this.loadedSubtaskId) {  // #100
         const tol = this.capability ? {
           utl: this.capability.utl,
           ltl: this.capability.ltl,

src/frontend/flask_app/tests/js/test_dxf_preview.js

@@ -0,0 +1,90 @@
+/**
+ * #101: anteprima DXF del wizard «Crea ricetta da DXF», con plain node.
+ * Copre dxfPreviewPaths, dxfPreviewViewBox, dxfPreviewSummary e lo scarto
+ * di una risposta arrivata dopo un cambio di file.
+ *
+ * Run from src/frontend/flask_app: node tests/js/test_dxf_preview.js
+ */
+'use strict';
+const fs = require('fs');
+const path = require('path');
+
+global.document = { documentElement: { lang: 'it' } };
+const src = fs.readFileSync(
+  path.join(__dirname, '..', '..', 'static', 'js', 'dxf_recipe_wizard.js'), 'utf8',
+);
+eval(src + ';global.dxfRecipeWizard = dxfRecipeWizard;');
+
+let failures = 0;
+function check(label, cond, extra) {
+  if (cond) console.log('ok - ' + label);
+  else { failures++; console.log('FAIL - ' + label + (extra ? ' :: ' + extra : '')); }
+}
+
+const PREVIEW = {
+  contorni: [[[0, -5], [12.3, -5], [12.3, 0], [0, 0], [0, -5]], [[1, -1]]],
+  bbox: { xmin: 0, ymin: -5.1, xmax: 12.3, ymax: 0 },
+  larghezza_mm: 12.3, altezza_mm: 5.1, entita: 2, punti: 6,
+};
+
+(async () => {
+  const w = dxfRecipeWizard(1, () => 'tok', { dxfEntities: 'entità' });
+
+  check('senza anteprima: nessun path', w.dxfPreviewPaths().length === 0);
+  check('senza anteprima: summary vuoto', w.dxfPreviewSummary === '');
+
+  w.dxfPreview = PREVIEW;
+  const paths = w.dxfPreviewPaths();
+  check('un contorno con >1 punti diventa una polyline (quello da 1 punto no)', paths.length === 1);
+  check('formato points', paths[0] === '0,-5 12.3,-5 12.3,0 0,0 0,-5', paths[0]);
+
+  // #101: path unico per <path :d>
+  check('dxfPreviewD', w.dxfPreviewD() === 'M 0 -5 L 12.3 -5 L 12.3 0 L 0 0 L 0 -5', w.dxfPreviewD());
+  w.dxfPreview = null;
+  check('dxfPreviewD vuoto senza anteprima', w.dxfPreviewD() === '');
+  w.dxfPreview = PREVIEW;
+
+  const vb = w.dxfPreviewViewBox().split(' ').map(Number);
+  const m = Math.max(0.5, 0.05 * 12.3);
+  check('viewBox con margine 5%', Math.abs(vb[0] + m) < 1e-3 && Math.abs(vb[2] - (12.3 + 2 * m)) < 1e-3, vb.join(' '));
+
+  // Disegno minuscolo: margine minimo 0.5 mm
+  w.dxfPreview = { ...PREVIEW, bbox: { xmin: 0, ymin: 0, xmax: 1, ymax: 1 } };
+  check('margine minimo 0.5 mm', Math.abs(w.dxfPreviewViewBox().split(' ').map(Number)[0] + 0.5) < 1e-3);
+
+  w.dxfPreview = PREVIEW;
+  const s = w.dxfPreviewSummary;
+  check('summary L × H mm · N entità', s.includes('×') && s.includes('mm') && s.endsWith('2 entità')
+    && /12[,.]30/.test(s) && /5[,.]10/.test(s), s);
+
+  // Risposta tardiva scartata: due scelte di file, la prima risponde per ultima
+  const resolvers = [];
+  global.fetch = () => new Promise(res => resolvers.push(res));
+  global.FormData = class { append() {} };
+  const w2 = dxfRecipeWizard(1, () => 'tok', {});
+  const reply = (body, ok = true) => ({ ok, json: async () => body });
+  w2.dxfFile = { name: 'a.dxf' };
+  const p1 = w2.loadDxfPreview();
+  w2.dxfFile = { name: 'b.dxf' };
+  const p2 = w2.loadDxfPreview();
+  resolvers[1](reply(PREVIEW));
+  await p2;
+  resolvers[0](reply({ ...PREVIEW, entita: 99 }));
+  await p1;
+  check('la risposta vecchia non sovrascrive la nuova', w2.dxfPreview && w2.dxfPreview.entita === 2);
+  check('busy spento', w2.dxfPreviewBusy === false);
+
+  // File tolto: tutto azzerato
+  w2.dxfFile = null;
+  await w2.loadDxfPreview();
+  check('file tolto azzera anteprima ed errore', w2.dxfPreview === null && w2.dxfPreviewError === '');
+
+  // Errore 422 con detail
+  global.fetch = async () => reply({ detail: 'DXF illeggibile: x' }, false);
+  w2.dxfFile = { name: 'c.dxf' };
+  await w2.loadDxfPreview();
+  check('errore col detail', w2.dxfPreviewError === 'DXF illeggibile: x' && w2.dxfPreview === null, w2.dxfPreviewError);
+
+  if (failures) { console.log(failures + ' fallimenti'); process.exit(1); }
+  console.log('tutto ok');
+})();

src/frontend/flask_app/tests/test_dxf_preview_js.py

@@ -0,0 +1,35 @@
+"""Runs the plain-node DXF preview behaviour test (tests/js/test_dxf_preview.js).
+
+Same thin pytest wrapper pattern as test_numpad_js.py: shells out to ``node``
+and asserts the script's own exit code. Skips (does not fail) when node is
+not installed.
+
+Covers gitea:Adriano/TieMeasureFlow#101.
+"""
+import shutil
+import subprocess
+from pathlib import Path
+
+import pytest
+
+FLASK_APP_DIR = Path(__file__).resolve().parent.parent
+JS_TEST = Path(__file__).resolve().parent / "js" / "test_dxf_preview.js"
+
+
+def test_dxf_preview_js_behaviour():
+    node = shutil.which("node")
+    if not node:
+        pytest.skip("node non installato: test JS di dxf_recipe_wizard.js saltato")
+
+    result = subprocess.run(
+        [node, str(JS_TEST)],
+        cwd=str(FLASK_APP_DIR),
+        capture_output=True,
+        text=True,
+        timeout=30,
+    )
+
+    assert result.returncode == 0, (
+        f"tests/js/test_dxf_preview.js fallito (exit {result.returncode})\n"
+        f"stdout:\n{result.stdout}\nstderr:\n{result.stderr}"
+    )

src/frontend/flask_app/tests/test_dxf_recipe_routes.py

@@ -178,6 +178,12 @@ class TestDxfCompareProxy:
         assert set(kwargs["files"]) == {"image", "dxf"}
         assert kwargs["files"]["image"][1] == PNG
 
+    def test_manual_px_per_mm_forwarded(self, logged_in_client, mock_api_client):
+        # #98: scala a mano dal wizard (immagine da file): inoltrata al backend
+        mock_api_client.post.return_value = self.OK
+        self._post(logged_in_client, station_id="4", px_per_mm="71.1237")
+        assert mock_api_client.post.call_args.kwargs["data"]["px_per_mm"] == "71.1237"
+
     def test_save_true_forwarded(self, logged_in_client, mock_api_client):
         mock_api_client.post.return_value = {**self.OK, "saved": True, "recipe_dir": "vision/recipes/7/x"}
         resp = self._post(logged_in_client, save="true")
@@ -204,6 +210,49 @@ class TestDxfCompareProxy:
         mock_api_client.post.assert_not_called()
 
 
+class TestDxfPreviewProxy:
+    """#101: anteprima del DXF scelto nel wizard (proxy verso il backend)."""
+    URL = "/maker/api/vision/dxf-preview"
+    OK = {
+        "contorni": [[[0.0, -5.0], [10.0, -5.0], [10.0, 0.0], [0.0, 0.0]]],
+        "bbox": {"xmin": 0.0, "ymin": -5.0, "xmax": 10.0, "ymax": 0.0},
+        "larghezza_mm": 10.0, "altezza_mm": 5.0, "entita": 1, "punti": 4,
+    }
+
+    def _post(self, client, with_file=True):
+        data = {"dxf": (io.BytesIO(b"0\nEOF"), "d.dxf")} if with_file else {}
+        return client.post(self.URL, data=data, content_type="multipart/form-data")
+
+    def test_forwards_file(self, logged_in_client, mock_api_client):
+        mock_api_client.post.return_value = self.OK
+        resp = self._post(logged_in_client)
+        assert resp.status_code == 200
+        assert resp.get_json()["larghezza_mm"] == 10.0
+        args, kwargs = mock_api_client.post.call_args
+        assert args[0] == "/api/vision/dxf-preview"
+        assert set(kwargs["files"]) == {"dxf"}
+        assert kwargs["files"]["dxf"][0] == "d.dxf"
+        assert kwargs["files"]["dxf"][1] == b"0\nEOF"
+
+    def test_missing_file_is_400(self, logged_in_client, mock_api_client):
+        resp = self._post(logged_in_client, with_file=False)
+        assert resp.status_code == 400
+        mock_api_client.post.assert_not_called()
+
+    def test_backend_422_propagates(self, logged_in_client, mock_api_client):
+        mock_api_client.post.return_value = {
+            "error": True, "status_code": 422, "detail": "DXF illeggibile: x"}
+        resp = self._post(logged_in_client)
+        assert resp.status_code == 422
+        assert resp.get_json()["detail"] == "DXF illeggibile: x"
+
+    def test_requires_maker_role(self, logged_in_client, mock_api_client):
+        with logged_in_client.session_transaction() as sess:
+            sess["user"] = {**sess["user"], "roles": ["MeasurementTec"]}
+        assert self._post(logged_in_client).status_code == 403
+        mock_api_client.post.assert_not_called()
+
+
 class TestPages:
     def test_stations_page_has_calibration_cell(self, logged_in_client):
         with patch("blueprints.admin.api_client") as admin_api:
@@ -229,4 +278,6 @@ class TestPages:
         assert "js/dxf_recipe_wizard.js" in html
         assert "dxfRecipeWizard(" in html
         assert "@dxf-recipe-saved" in html
+        assert 'x-model="mmPx"' in html  # #98: campo mm/px a mano
+        assert "dxfPreviewD()" in html and "view-box.camel" in html  # #101: anteprima SVG del DXF
         assert "Pezzo scuro su fondo chiaro" in html or "Dark part on light" in html

src/frontend/flask_app/tests/test_maker_acquisition.py

@@ -0,0 +1,140 @@
+"""gitea:Adriano/TieMeasureFlow#97 - camera e modo di analisi nel task visione (lato Maker).
+
+api_client e requests sono finti: nessun servizio camera vero.
+"""
+import json
+import re
+from unittest.mock import MagicMock, patch
+
+import requests
+
+from tests.conftest import api_get_router
+
+ST1 = {"id": 4, "code": "ST-4", "name": "Banco", "camera_url": "http://acq:8765/", "camera_source": "camera:1"}
+ST2 = {"id": 5, "code": "ST-5", "name": "Linea", "camera_url": "http://acq:8765", "camera_source": "camera:2"}
+ST3 = {"id": 6, "code": "ST-6", "name": "Altra", "camera_url": "http://altro:9000", "camera_source": "x"}
+NO_CAMERA = {"id": 7, "code": "ST-7", "name": "Senza", "camera_url": None, "camera_source": None}
+SOURCES = {"sources": [
+    {"name": "camera:601020", "kind": "camera", "label": "Basler 601020"},
+    {"name": "pezzo.png", "kind": "image", "label": "immagine - pezzo.png"},
+]}
+
+
+def _stations(mock_api_client, stations=(ST1, ST2, ST3, NO_CAMERA)):
+    mock_api_client.get.side_effect = api_get_router({"/api/stations": list(stations)})
+
+
+def _fake(status=200, body=None):
+    resp = MagicMock(status_code=status, text="")
+    if body is None:
+        resp.json.side_effect = ValueError("no json")
+    else:
+        resp.json.return_value = body
+    return resp
+
+
+class TestCameraServizi:
+    def test_distinct_urls_with_stations(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client)
+        resp = logged_in_client.get("/maker/api/camera/servizi")
+        assert resp.status_code == 200
+        assert resp.get_json() == {"servizi": [
+            {"camera_url": "http://acq:8765", "stazioni": ["ST-4 - Banco", "ST-5 - Linea"]},
+            {"camera_url": "http://altro:9000", "stazioni": ["ST-6 - Altra"]},
+        ]}
+
+    def test_no_stations_with_camera(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client, [NO_CAMERA])
+        assert logged_in_client.get("/maker/api/camera/servizi").get_json() == {"servizi": []}
+
+
+class TestCameraSorgenti:
+    def test_lists_sources(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client)
+        with patch("blueprints.maker.http_requests.get", return_value=_fake(200, SOURCES)) as get:
+            resp = logged_in_client.get("/maker/api/camera/sorgenti?url=http://acq:8765/")
+        assert resp.status_code == 200
+        assert resp.get_json() == SOURCES
+        args, kwargs = get.call_args
+        assert args[0] == "http://acq:8765/camera/sources"
+        assert kwargs["timeout"] == 15
+
+    def test_url_not_a_station_service_is_400(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client)
+        with patch("blueprints.maker.http_requests.get") as get:
+            resp = logged_in_client.get("/maker/api/camera/sorgenti?url=http://evil:1")
+        assert resp.status_code == 400
+        get.assert_not_called()
+
+    def test_missing_url_is_400(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client)
+        with patch("blueprints.maker.http_requests.get") as get:
+            assert logged_in_client.get("/maker/api/camera/sorgenti").status_code == 400
+        get.assert_not_called()
+
+    def test_service_down_is_502(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client)
+        with patch("blueprints.maker.http_requests.get",
+                   side_effect=requests.ConnectionError("refused")):
+            resp = logged_in_client.get("/maker/api/camera/sorgenti?url=http://acq:8765")
+        assert resp.status_code == 502
+        assert "refused" in resp.get_json()["detail"]
+
+    def test_service_error_status_is_502(self, logged_in_client, mock_api_client):
+        _stations(mock_api_client)
+        with patch("blueprints.maker.http_requests.get", return_value=_fake(500, {"detail": "x"})):
+            resp = logged_in_client.get("/maker/api/camera/sorgenti?url=http://acq:8765")
+        assert resp.status_code == 502
+
+
+class TestTaskProxyForwardsAcquisition:
+    def test_put_forwards_acquisition_json(self, logged_in_client, mock_api_client):
+        acq = {"camera_url": "http://acq:8765", "camera_source": "camera:1", "modo": "in_linea"}
+        mock_api_client.put.return_value = {"id": 11, "title": "T", "acquisition_json": acq}
+        resp = logged_in_client.put("/maker/api/tasks/11", json={"title": "T", "acquisition_json": acq})
+        assert resp.status_code == 200
+        assert mock_api_client.put.call_args.kwargs["data"]["acquisition_json"] == acq
+
+    def test_put_forwards_null(self, logged_in_client, mock_api_client):
+        mock_api_client.put.return_value = {"id": 11, "title": "T", "acquisition_json": None}
+        logged_in_client.put("/maker/api/tasks/11", json={"title": "T", "acquisition_json": None})
+        assert mock_api_client.put.call_args.kwargs["data"]["acquisition_json"] is None
+
+
+class TestTaskEditorAcquisitionUi:
+    def _html(self, client, mock_api_client, task_type="camera_measure"):
+        mock_api_client.get.side_effect = api_get_router({
+            "/api/recipes/3": {"id": 3, "code": "R", "name": "R"},
+            "/api/recipes/3/tasks": [{
+                "id": 11, "title": "T", "task_type": task_type, "subtasks": [],
+                "file_path": None, "order_index": 1,
+                "acquisition_json": {"camera_url": "http://acq:8765", "camera_source": "camera:1",
+                                     "modo": "in_linea"},
+            }],
+        })
+        return client.get("/maker/recipes/3/tasks").get_data(as_text=True)
+
+    def test_section_and_fields(self, logged_in_client, mock_api_client):
+        html = self._html(logged_in_client, mock_api_client)
+        assert "taskAcquisition(" in html
+        assert "js/task_acquisition.js" in html
+        assert "Servizio di acquisizione" in html
+        assert "Sorgente" in html
+        assert "Analisi impulsiva" in html and "Analisi in linea" in html
+        assert 'value="impulsiva"' in html and 'value="in_linea"' in html
+        assert "Camera della stazione dell'operatore" in html or \
+            "Camera della stazione dell'operatore" in html
+
+    def test_payload_carries_acquisition_json(self, logged_in_client, mock_api_client):
+        html = self._html(logged_in_client, mock_api_client)
+        assert "acquisition_json: acq.value" in html
+        assert "_acquisitionPayload(this.editTaskData)" in html
+        # il task salvato riempie lo stato di modifica
+        assert "task.acquisition_json.camera_url" in html
+
+    def test_static_js_endpoints(self):
+        import os
+        path = os.path.join(os.path.dirname(__file__), "..", "static", "js", "task_acquisition.js")
+        src = open(path, encoding="utf-8").read()
+        assert "/maker/api/camera/servizi" in src
+        assert "/maker/api/camera/sorgenti?url=" in src

src/frontend/flask_app/tests/test_statistics.py

@@ -167,3 +167,11 @@ class TestRunTaskResultsProxy:
         assert 'id="run-task-results"' in html
         assert "loadTaskResults" in html
         assert "/statistics/api/runs/" in html
+
+    def test_dashboard_all_points_overview(self, logged_in_client, mock_api_client):
+        # #100: con «Tutti i punti» la pagina ha tabella per-punto e select che ricarica da solo
+        mock_api_client.get.return_value = {"items": [], "total": 0, "pages": 1}
+        html = logged_in_client.get("/statistics/dashboard").get_data(as_text=True)
+        assert "capabilityAll" in html
+        assert "loadedSubtaskId" in html
+        assert '@change="loadData()"' in html

src/frontend/flask_app/translations/en/LC_MESSAGES/messages.po

@@ -3485,3 +3485,17 @@ msgstr "Invalid camera address"
 #: templates/admin/stations.html blueprints/admin.py (#88)
 msgid "Risposta non valida dal servizio camera"
 msgstr "Invalid response from the camera service"
+
+#: templates/statistics/dashboard.html (#100)
+msgid "Scegli un punto per carta di controllo e istogramma"
+msgstr "Choose a point for the control chart and histogram"
+
+#: templates/maker/task_editor.html blueprints/maker.py (#101)
+msgid "Serve il file DXF"
+msgstr "The DXF file is required"
+
+msgid "Lettura DXF…"
+msgstr "Reading DXF…"
+
+msgid "entità"
+msgstr "entities"

src/frontend/flask_app/translations/it/LC_MESSAGES/messages.po

@@ -3473,3 +3473,13 @@ msgstr "Indirizzo della camera non valido"
 #: templates/admin/stations.html blueprints/admin.py (#88)
 msgid "Risposta non valida dal servizio camera"
 msgstr "Risposta non valida dal servizio camera"
+
+#: templates/maker/task_editor.html blueprints/maker.py (#101)
+msgid "Serve il file DXF"
+msgstr "Serve il file DXF"
+
+msgid "Lettura DXF…"
+msgstr "Lettura DXF…"
+
+msgid "entità"
+msgstr "entità"

src/vision_worker/main.py

@@ -11,6 +11,7 @@ import io
 import json
 import os
 import re
+import tempfile  # #101
 from pathlib import Path
 
 import numpy as np
@@ -288,3 +289,89 @@ async def recipes_dxf_compare(
                 status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                 detail=f"recipe build failed: {type(exc).__name__}: {exc}",
             ) from exc
+
+
+# #101: tetto ai punti dell'anteprima DXF (un profilo fitto non deve gonfiare
+# la risposta ne' rallentare il disegno SVG nel browser).
+_PREVIEW_MAX_POINTS = 20000
+
+
+def _decimate(points: list[list[float]], keep: int) -> list[list[float]]:
+    """Decimazione uniforme a `keep` punti (>= 2), primo e ultimo sempre inclusi."""
+    n = len(points)
+    if n <= keep or keep < 2:
+        return points
+    idx = sorted({round(i * (n - 1) / (keep - 1)) for i in range(keep)})
+    return [points[i] for i in idx]
+
+
+def _dxf_preview(dxf_bytes: bytes) -> dict:
+    """#101: legge il DXF con lo stesso lettore di CompareDxf (read_xld_dxf) e ne
+    ritorna i contorni in mm, asse y verso il basso (come immagine e SVG).
+
+    Funzione sincrona e pura: la rotta la esegue in un thread. Solleva
+    CostruttoreError per DXF vuoto, illeggibile o senza geometria.
+    """
+    if not dxf_bytes:
+        raise CostruttoreError("DXF illeggibile: file vuoto")
+    from visionsuite.io.dxf import read_xld_dxf
+    with tempfile.TemporaryDirectory() as tmp:
+        path = Path(tmp) / "disegno.dxf"
+        path.write_bytes(dxf_bytes)
+        try:
+            # flip_y=False + scale=1: coordinate native del DXF, in mm; il
+            # ribaltamento dell'asse y lo facciamo noi sotto (y = -y_dxf)
+            conts = list(read_xld_dxf(str(path), sampling_distance=0.05,
+                                      scale=1.0, flip_y=False))
+        except Exception as exc:  # noqa: BLE001 - qualunque errore di lettura = DXF illeggibile
+            raise CostruttoreError(f"DXF illeggibile: {type(exc).__name__}: {exc}") from exc
+
+    contorni: list[list[list[float]]] = []
+    for cont in conts:
+        pts = np.asarray(cont.points, dtype=float)  # (riga, colonna) = (y_dxf, x_dxf)
+        if pts.ndim != 2 or pts.shape[0] < 2:
+            continue
+        line = [[float(c), float(-r)] for r, c in pts]
+        if cont.closed and line[0] != line[-1]:
+            line.append(list(line[0]))  # chiude il giro anche nella polilinea SVG
+        contorni.append(line)
+    if not contorni:
+        raise CostruttoreError("DXF senza geometria")
+
+    # #101: le dimensioni si misurano sui punti completi, prima della decimazione
+    xs = [p[0] for c in contorni for p in c]
+    ys = [p[1] for c in contorni for p in c]
+    xmin, xmax, ymin, ymax = min(xs), max(xs), min(ys), max(ys)
+
+    total = len(xs)
+    if total > _PREVIEW_MAX_POINTS:
+        # quota per contorno proporzionale, minimo 2 punti
+        contorni = [
+            _decimate(c, max(2, int(len(c) * _PREVIEW_MAX_POINTS / total))) for c in contorni
+        ]
+    contorni = [[[round(x, 3), round(y, 3)] for x, y in c] for c in contorni]
+    xmin, xmax, ymin, ymax = (round(v, 3) for v in (xmin, xmax, ymin, ymax))
+    return {
+        "contorni": contorni,
+        "bbox": {"xmin": xmin, "ymin": ymin, "xmax": xmax, "ymax": ymax},
+        "larghezza_mm": round(xmax - xmin, 3),
+        "altezza_mm": round(ymax - ymin, 3),
+        "entita": len(contorni),
+        "punti": sum(len(c) for c in contorni),
+    }
+
+
+@app.post("/dxf/preview")
+async def dxf_preview(dxf: UploadFile = File(...)) -> dict:
+    """#101: anteprima del disegno DXF (contorni + dimensioni in mm) per il
+    wizard «Crea ricetta da DXF». Solo lettura, leggera: nessun run slot."""
+    dxf_bytes = await dxf.read()
+    try:
+        return await asyncio.to_thread(_dxf_preview, dxf_bytes)
+    except CostruttoreError as exc:
+        raise _unprocessable(str(exc)) from exc
+    except Exception as exc:
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail=f"dxf preview failed: {type(exc).__name__}: {exc}",
+        ) from exc

src/vision_worker/tests/test_dxf_compare.py

@@ -80,3 +80,67 @@ async def test_dxf_compare_immagine_non_decodificabile_e_422():
 async def test_dxf_compare_parametro_fuori_range_e_422():
     response = await _post(_png(a_scene(0.0)), SAMPLE_DXF.read_bytes(), polarity="grigio")
     assert response.status_code == 422
+
+
+# --- #101: POST /dxf/preview ---------------------------------------------------
+
+def _rect_dxf(width: float, height: float, y0: float = 3.0) -> bytes:
+    """DXF minimo con ezdxf: un rettangolo chiuso, y in alto rispetto a 0."""
+    import ezdxf
+    doc = ezdxf.new()
+    doc.modelspace().add_lwpolyline(
+        [(1, y0), (1 + width, y0), (1 + width, y0 + height), (1, y0 + height)], close=True,
+    )
+    buffer = io.StringIO()
+    doc.write(buffer)
+    return buffer.getvalue().encode("utf-8")
+
+
+def _post_preview(dxf: bytes):
+    # TestClient sincrono: non serve pytest-asyncio (assente nel venv del worker)
+    from fastapi.testclient import TestClient
+    return TestClient(app).post(
+        "/dxf/preview", files={"dxf": ("d.dxf", dxf, "application/octet-stream")},
+    )
+
+
+def test_dxf_preview_rettangolo_10x5():
+    resp = _post_preview(_rect_dxf(10, 5))
+    assert resp.status_code == 200, resp.text
+    body = resp.json()
+    assert body["larghezza_mm"] == 10 and body["altezza_mm"] == 5
+    assert body["entita"] == 1 and body["punti"] == sum(len(c) for c in body["contorni"])
+    # y ribaltata: il rettangolo stava a y 3..8 nel DXF, ora a -8..-3 (asse verso il basso)
+    assert body["bbox"] == {"xmin": 1, "ymin": -8, "xmax": 11, "ymax": -3}
+    ring = body["contorni"][0]
+    assert ring[0] == ring[-1]  # contorno chiuso: primo == ultimo
+    assert all(-8 <= y <= -3 for _, y in ring)
+
+
+@pytest.mark.parametrize("content", [b"", b"questo non e' un dxf"])
+def test_dxf_preview_illeggibile_e_422(content):
+    resp = _post_preview(content)
+    assert resp.status_code == 422
+    assert resp.json()["detail"].startswith("DXF")
+
+
+def test_dxf_preview_senza_geometria_e_422():
+    import ezdxf
+    doc = ezdxf.new()
+    buffer = io.StringIO()
+    doc.write(buffer)
+    resp = _post_preview(buffer.getvalue().encode("utf-8"))
+    assert resp.status_code == 422
+    assert "senza geometria" in resp.json()["detail"]
+
+
+def test_dxf_preview_decima_oltre_il_tetto(monkeypatch):
+    from src.vision_worker import main
+    monkeypatch.setattr(main, "_PREVIEW_MAX_POINTS", 50)
+    import ezdxf
+    doc = ezdxf.new()
+    doc.modelspace().add_circle((0, 0), 20)
+    buffer = io.StringIO()
+    doc.write(buffer)
+    full = main._dxf_preview(buffer.getvalue().encode("utf-8"))
+    assert full["punti"] <= 50 + 1 and full["larghezza_mm"] == pytest.approx(40, abs=0.01)  # dimensioni dai punti completi