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/vision.py

@@ -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.",
@@ -358,6 +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/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

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/blueprints/measure.py

@@ -1,4 +1,5 @@
 """MeasurementTec blueprint - recipe selection and measurement execution."""
+import json
 import urllib.parse
 
 import requests as http_requests
@@ -337,6 +338,14 @@ def task_execute(task_id: int):
             measurement_interval_minutes = recipe_resp.get("measurement_interval_minutes")
             allow_manual_input = bool(recipe_resp.get("allow_manual_input", True))
 
+    # #97: camera del task (acquisition_json) o della stazione; il modo di analisi
+    # (impulsiva / in_linea) viene dal task. Solo i task visione ne hanno bisogno.
+    camera = None
+    camera_mode = "impulsiva"
+    if task_resp.get("task_type") in ("camera_measure", "dxf_compare"):
+        camera = _task_camera(task_resp, _current_station()[0])
+        camera_mode = _task_mode(task_resp)
+
     return render_template(
         "measure/task_execute.html",
         task=task_resp,
@@ -345,7 +354,8 @@ def task_execute(task_id: int):
         all_task_ids=all_task_ids,
         measurement_interval_minutes=measurement_interval_minutes,
         allow_manual_input=allow_manual_input,
-        camera_enabled=_station_camera(_current_station()[0]) is not None,
+        camera_enabled=camera is not None,
+        camera_mode=camera_mode,
     )
 
 
@@ -1001,6 +1011,42 @@ def api_vision_execute():
     return jsonify(resp), 200
 
 
+# #97: analysis of a frame without saving anything (preview before «Registra»).
+@measure_bp.route("/api/vision/check", methods=["POST"])
+@login_required
+@role_required("MeasurementTec")
+def api_vision_check():
+    """Proxy: run the task's VisionSuite recipe on the image, nothing is saved."""
+    image = request.files.get("image")
+    task_id = request.form.get("task_id")
+    if image is None or not task_id:
+        return jsonify({
+            "error": True,
+            "detail": _("Dati mancanti: task_id e image sono obbligatori"),
+        }), 400
+
+    form = {"task_id": task_id}
+    if request.form.get("production_run_id"):
+        form["production_run_id"] = request.form["production_run_id"]
+
+    resp = api_client.post(
+        "/api/vision/check",
+        data=form,
+        files={"image": (
+            image.filename or "capture.jpg",
+            image.read(),
+            image.mimetype or "application/octet-stream",
+        )},
+    )
+    if resp.get("error"):
+        status_code = resp.get("status_code", 500)
+        body = {"error": True, "detail": resp.get("detail", _("Errore nell'esecuzione"))}
+        if resp.get("session_expired"):
+            body["session_expired"] = True
+        return jsonify(body), status_code if status_code >= 400 else 500
+    return jsonify(resp), 200
+
+
 def _station_camera(station_code: str | None) -> tuple[str, str] | None:
     """(camera_url, camera_source) of the station, None when it has no camera.
 
@@ -1019,6 +1065,31 @@ def _station_camera(station_code: str | None) -> tuple[str, str] | None:
     return str(url), str(source)
 
 
+def _task_acquisition(task: dict | None) -> dict | None:
+    """#97: acquisition_json of a task as a dict, None when absent or unreadable."""
+    acq = task.get("acquisition_json") if isinstance(task, dict) else None
+    if isinstance(acq, str):
+        try:
+            acq = json.loads(acq)
+        except ValueError:
+            return None
+    return acq if isinstance(acq, dict) else None
+
+
+def _task_camera(task: dict | None, station_code: str | None) -> tuple[str, str] | None:
+    """#97: camera of a task = its acquisition_json (url + source), else the station's."""
+    acq = _task_acquisition(task)
+    if acq and acq.get("camera_url") and acq.get("camera_source"):
+        return str(acq["camera_url"]), str(acq["camera_source"])
+    return _station_camera(station_code)
+
+
+def _task_mode(task: dict | None) -> str:
+    """#97: analysis mode of a task, «impulsiva» unless acquisition_json says «in_linea»."""
+    acq = _task_acquisition(task)
+    return "in_linea" if acq and acq.get("modo") == "in_linea" else "impulsiva"
+
+
 # #72: the browser asks the station's camera service (vs-gui) for a frame; the
 # service address is a server-side matter, so Flask relays and the PNG goes back as is.
 @measure_bp.route("/api/vision/grab", methods=["POST"])
@@ -1026,7 +1097,16 @@ def _station_camera(station_code: str | None) -> tuple[str, str] | None:
 @role_required("MeasurementTec")
 def api_vision_grab():
     """Proxy: grab one frame from the current station's camera, answer a PNG."""
-    camera = _station_camera(_current_station()[0])
+    # #97: con task_id (form o json) la camera e' quella del task, altrimenti della stazione
+    payload = request.get_json(silent=True) or {}
+    task_id = request.form.get("task_id") or payload.get("task_id")
+    task = None
+    if task_id:
+        try:
+            task = api_client.get(f"/api/tasks/{int(task_id)}")
+        except (TypeError, ValueError):
+            task = None
+    camera = _task_camera(task, _current_station()[0])
     if camera is None:
         return jsonify({
             "error": True,

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/static/js/vision_execute.js

@@ -11,6 +11,13 @@
  *   taskType, subtasks, labels.
  * Run context (lot, serial, production run) is read lazily through `ctx()`,
  * which the template binds to the parent task component.
+ *
+ * #97: with a camera (cameraAvailable, the task's or the station's) the task opens
+ * on a frame already grabbed and analysed (/vision/check, nothing saved: «preview»).
+ * modo «impulsiva»: «Acquisisci» redoes grab+check. modo «in_linea»: continuous
+ * loop grab+check, one request at a time, standing still while paused / page hidden
+ * / leaving / saving. «Registra» saves the LAST frame shown through /vision/execute.
+ * Extra config: cameraAvailable, modo, checkUrl.
  */
 function visionExecute() {
   // Overlay colour per role (VisionSuite roles: reference, roi, found).
@@ -24,6 +31,125 @@ function visionExecute() {
     imageSrc: '',      // object URL of the acquired image (shown under the overlay)
     ctx: () => ({}),   // replaced by the template: {lot, serial, runId}
 
+    // #97: preview / loop state
+    preview: false,    // result on screen is an analysis only, not saved
+    saved: false,      // «Registra» done: the saved result replaces the preview
+    lastBlob: null,    // last frame shown, the one «Registra» saves
+    paused: false,     // operator paused the in-line loop
+    registering: false, // «Registra» in progress: the loop stands still
+    leaving: false,    // page is being left: no more requests
+    looping: false,    // an in-line loop is running
+    gen: 0,            // bumped by «Registra»: answers of older requests are dropped
+
+    // #97: start on a frame already acquired and analysed; hook visibility and exit.
+    init() {
+      if (!this.hasCamera) return;
+      document.addEventListener('visibilitychange', () => { if (!document.hidden) this.kick(); });
+      const leave = () => { this.leaving = true; };
+      window.addEventListener('pagehide', leave);
+      window.addEventListener('beforeunload', leave);
+      // After x-init has bound ctx(): in-line starts the loop, impulsive grabs once.
+      this.$nextTick(() => { if (this.inLinea) this.loop(); else this.grab(); });
+    },
+
+    get hasCamera() { return !!(window.__visionCfg || {}).cameraAvailable; },
+    get inLinea() { return this.hasCamera && (window.__visionCfg || {}).modo === 'in_linea'; },
+    // «Registra» needs a frame on screen that is not saved yet
+    get canRecord() { return !!this.lastBlob && !this.saved && !this.registering; },
+
+    shouldRun() {
+      return this.inLinea && !this.paused && !this.saved && !this.registering
+        && !this.leaving && !document.hidden;
+    },
+
+    // Page visible again: restart the loop unless the operator paused it.
+    kick() { if (this.shouldRun() && !this.looping) this.loop(); },
+
+    // In-line loop: one request at a time, at least 300 ms between two of them
+    // (longer after an error, so a dead camera is not hammered).
+    async loop() {
+      if (this.looping) return;
+      this.looping = true;
+      try {
+        while (this.shouldRun()) {
+          const ok = await this.grab();
+          await new Promise((r) => setTimeout(r, ok ? 300 : 2000));
+        }
+      } finally {
+        this.looping = false;
+      }
+    },
+
+    // «Pausa» / «Riprendi»; after «Registra» only «Riprendi» restarts the loop.
+    togglePause() {
+      if (this.paused || this.saved) {
+        this.paused = false;
+        this.saved = false;
+        this.loop();
+      } else {
+        this.paused = true;
+      }
+    },
+
+    // Analysis only (/vision/check): the frame becomes the preview, nothing is saved.
+    async analyze(blob) {
+      const cfg = window.__visionCfg || {};
+      if (!blob || !cfg.checkUrl) return false;
+      const gen = this.gen;
+      this.busy = true;
+      this.error = '';
+      try {
+        const c = this.ctx() || {};
+        const fd = new FormData();
+        fd.append('task_id', cfg.taskId);
+        fd.append('image', blob, blob.name || 'capture.jpg');
+        if (c.runId) fd.append('production_run_id', c.runId);
+        const csrf = document.querySelector('meta[name=csrf-token]')?.content || '';
+        const resp = await fetch(cfg.checkUrl, {
+          method: 'POST', headers: { 'X-CSRFToken': csrf }, body: fd,
+        });
+        const body = await resp.json().catch(() => ({}));
+        if (gen !== this.gen) return false;   // «Registra» took over
+        if (!resp.ok || body.error) {
+          this.error = body.detail || (cfg.labels && cfg.labels.requestFailed) || 'Error';
+          return false;
+        }
+        if (this.imageSrc) URL.revokeObjectURL(this.imageSrc);
+        this.imageSrc = URL.createObjectURL(blob);
+        this.lastBlob = blob;
+        this.result = body;
+        this.preview = true;
+        this.saved = false;
+        this.$nextTick(() => this.drawOverlay());
+        return true;
+      } catch (e) {
+        if (gen === this.gen) this.error = (cfg.labels && cfg.labels.requestFailed) || 'Error';
+        return false;
+      } finally {
+        if (gen === this.gen) this.busy = false;
+      }
+    },
+
+    // «Registra»: save the LAST frame shown with the usual /vision/execute.
+    async record() {
+      if (!this.canRecord) return;
+      const blob = this.lastBlob;
+      this.registering = true;
+      this.gen++;              // drop whatever request is still in flight
+      this.busy = false;
+      this.grabbing = false;
+      try {
+        await this.acquire(blob);
+        if (!this.error && this.result && this.result.vision_result_id) {
+          this.preview = false;
+          this.saved = true;
+        }
+      } finally {
+        this.registering = false;
+        this.kick();           // in-line: stays still while saved, restarts if the save failed
+      }
+    },
+
     // Entry point shared with the future agent camera.
     async acquire(blob) {
       if (!blob || this.busy) return;
@@ -64,37 +190,52 @@ function visionExecute() {
 
     // Station camera (#72): the Flask proxy answers a PNG, which goes through
     // acquire() like a picked file. Errors show as the execute ones do.
+    // #97: sends task_id (the task's camera wins over the station's); with a camera
+    // the frame goes to the preview analysis. Returns true when the frame was analysed.
     async grab() {
       const cfg = window.__visionCfg || {};
-      if (this.busy || this.grabbing || !cfg.grabUrl) return;
+      if (this.busy || this.grabbing || this.registering || !cfg.grabUrl) return false;
+      const gen = this.gen;
       this.grabbing = true;
       this.error = '';
       let blob = null;
       try {
         const csrf = document.querySelector('meta[name=csrf-token]')?.content || '';
+        const fd = new FormData();
+        fd.append('task_id', cfg.taskId);
         const resp = await fetch(cfg.grabUrl, {
-          method: 'POST', headers: { 'X-CSRFToken': csrf },
+          method: 'POST', headers: { 'X-CSRFToken': csrf }, body: fd,
         });
         if (!resp.ok) {
           const body = await resp.json().catch(() => ({}));
-          this.error = body.detail || (cfg.labels && cfg.labels.requestFailed) || 'Error';
+          if (gen === this.gen) this.error = body.detail || (cfg.labels && cfg.labels.requestFailed) || 'Error';
-          return;
+          return false;
         }
         blob = await resp.blob();
       } catch (e) {
-        this.error = (cfg.labels && cfg.labels.requestFailed) || 'Error';
+        if (gen === this.gen) this.error = (cfg.labels && cfg.labels.requestFailed) || 'Error';
-        return;
+        return false;
       } finally {
-        this.grabbing = false;
+        if (gen === this.gen) this.grabbing = false;
       }
-      if (blob) await this.acquire(blob);
+      if (!blob || gen !== this.gen) return false;
+      if (this.hasCamera) return await this.analyze(blob);
+      await this.acquire(blob);
+      return !this.error;
     },
 
     // Input change: take the file and allow picking the same one again.
+    // #97: with a camera the file is a preview too (the loop pauses), «Registra» saves it.
     onPick(ev) {
       const f = ev.target.files && ev.target.files[0];
       ev.target.value = '';
-      if (f) this.acquire(f);
+      if (!f) return;
+      if (this.hasCamera) {
+        if (this.inLinea) this.paused = true;
+        this.analyze(f);
+      } else {
+        this.acquire(f);
+      }
     },
 
     // Image shown: the saved one from the server when available, else the local one.

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/measure/task_execute.html

@@ -534,9 +534,10 @@
   <div x-show="isVisionTask" x-cloak
        x-data="visionExecute()"
        x-init="ctx = () => ({ lot: lotNumber, serial: serialNumber, runId: productionRun ? productionRun.id : null })"
-       class="flex-1 overflow-auto p-3 flex flex-col lg:flex-row gap-3">
+       class="flex-1 min-h-0 overflow-hidden p-3 flex flex-col lg:flex-row gap-3">
+    {# #96: il pannello non scorre mai (overflow-hidden, min-h-0): l'immagine sta in fit nello spazio che resta #}
 
-    <div class="flex-1 min-w-0 flex flex-col gap-2">
+    <div class="flex-1 min-w-0 min-h-0 flex flex-col gap-2">
       <div class="flex items-center gap-2 flex-wrap">
         {# On a tablet this opens the camera; on a PC it picks a file. «Riprova» reuses the same input. #}
         <label class="btn btn-primary text-sm gap-1.5 cursor-pointer" :class="busy ? 'opacity-50 pointer-events-none' : ''">
@@ -545,12 +546,29 @@
                  @change="onPick($event)" :disabled="busy">
         </label>
         {% if camera_enabled %}
-        {# #72: frame dalla camera della stazione, stessa strada di acquire() #}
+        {# #97: camera del task (o della stazione). Impulsiva: «Acquisisci» rifa grab+check; in linea: «Pausa»/«Riprendi» sul ciclo #}
+        {% if camera_mode == 'in_linea' %}
+        <button type="button" class="btn btn-secondary text-sm gap-1.5" @click="togglePause()"
+                :class="registering ? 'opacity-50 pointer-events-none' : ''"
+                :disabled="registering">
+          <span x-text="(paused || saved) ? '{{ _('Riprendi') }}' : '{{ _('Pausa') }}'"></span>
+        </button>
+        {% else %}
+        {# #72: frame dalla camera, stessa strada di acquire(); #97: ora grab + analisi senza salvare #}
         <button type="button" class="btn btn-secondary text-sm gap-1.5" @click="grab()"
                 :class="(busy || grabbing) ? 'opacity-50 pointer-events-none' : ''"
                 :disabled="busy || grabbing">
-          <span>{{ _('Acquisisci dalla camera') }}</span>
+          <span>{{ _('Acquisisci') }}</span>
         </button>
+        {% endif %}
+        {# #97: salva l'ULTIMO frame mostrato (execute); fino ad allora e' solo un'anteprima #}
+        <button type="button" class="btn btn-primary text-sm gap-1.5" @click="record()"
+                :class="canRecord ? '' : 'opacity-50 pointer-events-none'"
+                :disabled="!canRecord">
+          <span>{{ _('Registra') }}</span>
+        </button>
+        <span x-show="preview && !saved" x-cloak
+              class="inline-block px-2 py-0.5 rounded text-xs font-bold bg-amber-50 dark:bg-amber-900/20 border border-amber-300 dark:border-amber-700">{{ _('Anteprima, non registrata') }}</span>
         <span x-show="grabbing" class="text-sm text-[var(--text-muted)]">{{ _('Acquisizione in corso...') }}</span>
         {% endif %}
         <span x-show="busy" class="text-sm text-[var(--text-muted)]">{{ _('Elaborazione in corso...') }}</span>
@@ -558,16 +576,18 @@
 
       <div x-show="error" class="p-2 rounded-lg bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 text-sm text-measure-fail" x-text="error"></div>
 
-      <div x-show="shownImage" class="relative border border-[var(--border-color)] rounded-lg overflow-hidden bg-black/5">
+      {# #96: riquadro flex-1 min-h-0; img e canvas object-contain sovrapposti (il canvas ha la stessa risoluzione naturale dell'immagine, quindi l'overlay resta allineato) #}
-        <img x-ref="img" :src="shownImage" @load="drawOverlay()" alt="" class="block w-full h-auto">
+      <div x-show="shownImage" class="relative flex-1 min-h-0 border border-[var(--border-color)] rounded-lg overflow-hidden bg-black/5">
-        <canvas x-ref="overlay" class="absolute inset-0 w-full h-full pointer-events-none"></canvas>
+        <img x-ref="img" :src="shownImage" @load="drawOverlay()" alt="" class="absolute inset-0 w-full h-full object-contain">
+        <canvas x-ref="overlay" class="absolute inset-0 w-full h-full object-contain pointer-events-none"></canvas>
       </div>
       <div x-show="!shownImage" class="text-sm text-[var(--text-muted)]">
         {{ _('Nessuna immagine acquisita: premi «Acquisisci immagine».') }}
       </div>
     </div>
 
-    <div class="lg:w-80 shrink-0 flex flex-col gap-2" x-show="result">
+    {# #96: colonna esito con scorrimento proprio (solo con molte quote); sotto lg max 40% dell'altezza #}
+    <div class="lg:w-80 shrink-0 min-h-0 overflow-y-auto max-h-[40%] lg:max-h-none flex flex-col gap-2" x-show="result">
       <div class="text-sm font-bold text-[var(--text-primary)]">
         {{ _('Esito') }}: <span x-text="(result && result.outcome) || '-'"></span>
       </div>
@@ -1146,6 +1166,9 @@
   window.__visionCfg = {
     executeUrl: '{{ url_for("measure.api_vision_execute") }}',
     grabUrl: '{{ url_for("measure.api_vision_grab") }}',
+    checkUrl: '{{ url_for("measure.api_vision_check") }}',  {# #97: analisi senza salvare #}
+    cameraAvailable: {{ (camera_enabled|default(false))|tojson }},
+    modo: {{ (camera_mode|default('impulsiva'))|tojson }},
     imageUrlTpl: '{{ url_for("measure.api_vision_result_image", result_id=0) }}',
     taskId: {{ task.id|tojson }},
     taskType: {{ (task.task_type or '')|tojson }},

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_measure_vision_check.py

@@ -0,0 +1,182 @@
+"""gitea:Adriano/TieMeasureFlow#97 - operator: image already analysed on entry.
+
+The backend (POST /api/vision/check, task.acquisition_json) is built elsewhere:
+api_client and requests are mocked here with the contract's shapes.
+"""
+import io
+import json
+from unittest.mock import MagicMock, patch
+
+from tests.conftest import api_get_router
+from tests.test_measure_camera_grab import (
+    PNG, RECIPE, STATION, TASK, _fake, _station,
+)
+
+ACQ = {"camera_url": "http://acq-host:9000", "camera_source": "camera:601020", "modo": "in_linea"}
+
+
+def _task_with(acq):
+    return {**TASK, "acquisition_json": acq}
+
+
+# --- grab: the camera of the task, else the station's -------------------------
+def test_grab_with_task_id_uses_task_camera(logged_in_client, mock_api_client, monkeypatch):
+    _station(mock_api_client, monkeypatch, STATION)
+    mock_api_client.get.side_effect = api_get_router({"/api/tasks/12": _task_with(ACQ)})
+    with patch("blueprints.measure.http_requests.post", return_value=_fake()) as post:
+        resp = logged_in_client.post("/measure/api/vision/grab", data={"task_id": "12"})
+    assert resp.status_code == 200 and resp.data == PNG
+    args, kwargs = post.call_args
+    assert args[0] == "http://acq-host:9000/camera/grab"
+    assert kwargs["json"]["source"] == "camera:601020"
+    mock_api_client.get_station_by_code.assert_not_called()
+
+
+def test_grab_task_id_in_json_works_too(logged_in_client, mock_api_client, monkeypatch):
+    _station(mock_api_client, monkeypatch, STATION)
+    mock_api_client.get.side_effect = api_get_router({"/api/tasks/12": _task_with(ACQ)})
+    with patch("blueprints.measure.http_requests.post", return_value=_fake()) as post:
+        resp = logged_in_client.post("/measure/api/vision/grab", json={"task_id": 12})
+    assert resp.status_code == 200
+    assert post.call_args[0][0] == "http://acq-host:9000/camera/grab"
+
+
+def test_grab_task_without_acquisition_uses_station(logged_in_client, mock_api_client, monkeypatch):
+    _station(mock_api_client, monkeypatch, STATION)
+    mock_api_client.get.side_effect = api_get_router({"/api/tasks/12": _task_with(None)})
+    with patch("blueprints.measure.http_requests.post", return_value=_fake()) as post:
+        resp = logged_in_client.post("/measure/api/vision/grab", data={"task_id": "12"})
+    assert resp.status_code == 200
+    args, kwargs = post.call_args
+    assert args[0] == "http://host.docker.internal:8765/camera/grab"
+    assert kwargs["json"]["source"] == "camera:folder"
+
+
+def test_grab_task_camera_wins_even_if_station_has_none(logged_in_client, mock_api_client, monkeypatch):
+    _station(mock_api_client, monkeypatch, {**STATION, "camera_url": None})
+    mock_api_client.get.side_effect = api_get_router({"/api/tasks/12": _task_with(ACQ)})
+    with patch("blueprints.measure.http_requests.post", return_value=_fake()) as post:
+        resp = logged_in_client.post("/measure/api/vision/grab", data={"task_id": "12"})
+    assert resp.status_code == 200
+    assert post.call_args[0][0] == "http://acq-host:9000/camera/grab"
+
+
+def test_grab_task_lookup_error_falls_back_to_station(logged_in_client, mock_api_client, monkeypatch):
+    _station(mock_api_client, monkeypatch, STATION)
+    mock_api_client.get.side_effect = api_get_router(
+        {"/api/tasks/12": {"error": True, "status_code": 404, "detail": "x"}})
+    with patch("blueprints.measure.http_requests.post", return_value=_fake()) as post:
+        resp = logged_in_client.post("/measure/api/vision/grab", data={"task_id": "12"})
+    assert resp.status_code == 200
+    assert post.call_args[0][0] == "http://host.docker.internal:8765/camera/grab"
+
+
+def test_grab_acquisition_as_json_string(logged_in_client, mock_api_client, monkeypatch):
+    _station(mock_api_client, monkeypatch, {**STATION, "camera_url": None})
+    mock_api_client.get.side_effect = api_get_router(
+        {"/api/tasks/12": _task_with(json.dumps(ACQ))})
+    with patch("blueprints.measure.http_requests.post", return_value=_fake()) as post:
+        resp = logged_in_client.post("/measure/api/vision/grab", data={"task_id": "12"})
+    assert resp.status_code == 200
+    assert post.call_args[0][0] == "http://acq-host:9000/camera/grab"
+
+
+# --- check proxy ---------------------------------------------------------------
+CHECK_OK = {
+    "outcome": "ok", "overlay": [], "failures": [], "calibration": "ok",
+    "measurements": [{"subtask_id": 1, "value": 9.9, "pass_fail": "pass"}],
+}
+
+
+def test_check_proxy_forwards_multipart(logged_in_client, mock_api_client):
+    mock_api_client.post.return_value = CHECK_OK
+    resp = logged_in_client.post(
+        "/measure/api/vision/check",
+        data={
+            "task_id": "12", "production_run_id": "4",
+            "image": (io.BytesIO(b"\xff\xd8\xff fake"), "shot.jpg", "image/jpeg"),
+        },
+        content_type="multipart/form-data",
+    )
+    assert resp.status_code == 200
+    assert resp.get_json()["measurements"][0]["pass_fail"] == "pass"
+    args, kwargs = mock_api_client.post.call_args
+    assert args[0] == "/api/vision/check"
+    assert kwargs["data"] == {"task_id": "12", "production_run_id": "4"}
+    name, content, mime = kwargs["files"]["image"]
+    assert name == "shot.jpg" and mime == "image/jpeg" and content.startswith(b"\xff\xd8")
+
+
+def test_check_proxy_without_run_leaves_it_out(logged_in_client, mock_api_client):
+    mock_api_client.post.return_value = CHECK_OK
+    logged_in_client.post(
+        "/measure/api/vision/check",
+        data={"task_id": "12", "image": (io.BytesIO(b"x"), "a.jpg", "image/jpeg")},
+        content_type="multipart/form-data",
+    )
+    assert mock_api_client.post.call_args[1]["data"] == {"task_id": "12"}
+
+
+def test_check_proxy_requires_image(logged_in_client, mock_api_client):
+    resp = logged_in_client.post("/measure/api/vision/check", data={"task_id": "12"})
+    assert resp.status_code == 400
+    mock_api_client.post.assert_not_called()
+
+
+def test_check_proxy_relays_backend_error(logged_in_client, mock_api_client):
+    mock_api_client.post.return_value = {"error": True, "status_code": 422, "detail": "nessun grafo"}
+    resp = logged_in_client.post(
+        "/measure/api/vision/check",
+        data={"task_id": "12", "image": (io.BytesIO(b"x"), "a.jpg", "image/jpeg")},
+        content_type="multipart/form-data",
+    )
+    assert resp.status_code == 422
+    assert resp.get_json()["detail"] == "nessun grafo"
+
+
+def test_check_requires_login(client):
+    resp = client.post("/measure/api/vision/check")
+    assert resp.status_code in (302, 401)
+
+
+# --- execute page: buttons and config -------------------------------------------
+def _page(logged_in_client, mock_api_client, monkeypatch, station, task):
+    _station(mock_api_client, monkeypatch, station)
+    mock_api_client.get_station_recipes.return_value = {"items": [{"id": 3}]}
+    mock_api_client.get.side_effect = api_get_router({
+        "/api/tasks/12": task,
+        "/api/recipes/3/tasks": [{"id": 12, "order_index": 0}],
+        "/api/recipes/3": RECIPE,
+    })
+    return logged_in_client.get("/measure/execute/12").get_data(as_text=True)
+
+
+def test_page_impulsive_has_acquire_and_record(logged_in_client, mock_api_client, monkeypatch):
+    html = _page(logged_in_client, mock_api_client, monkeypatch, STATION, TASK)
+    assert 'cameraAvailable: true' in html
+    assert 'modo: "impulsiva"' in html
+    assert "/measure/api/vision/check" in html
+    assert "grab()" in html and "record()" in html
+    assert "togglePause()" not in html
+    assert "Anteprima, non registrata" in html
+
+
+def test_page_in_line_has_pause_and_record(logged_in_client, mock_api_client, monkeypatch):
+    html = _page(logged_in_client, mock_api_client, monkeypatch, STATION, _task_with(ACQ))
+    assert 'modo: "in_linea"' in html
+    assert "togglePause()" in html and "record()" in html
+    assert "grab()" not in html  # the loop grabs by itself
+
+
+def test_page_task_camera_enables_it_without_station_camera(logged_in_client, mock_api_client, monkeypatch):
+    html = _page(logged_in_client, mock_api_client, monkeypatch,
+                 {**STATION, "camera_url": None}, _task_with({**ACQ, "modo": "impulsiva"}))
+    assert 'cameraAvailable: true' in html
+    assert "grab()" in html
+
+
+def test_page_without_camera_is_as_before(logged_in_client, mock_api_client, monkeypatch):
+    html = _page(logged_in_client, mock_api_client, monkeypatch,
+                 {**STATION, "camera_url": None}, TASK)
+    assert 'cameraAvailable: false' in html
+    assert "record()" not in html and "togglePause()" not in html and "grab()" not in html

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/tests/test_vision_panel_fit.py

@@ -0,0 +1,54 @@
+"""gitea:Adriano/TieMeasureFlow#96 - l'immagine del task visione sta in fit, senza scorrimento.
+
+Controllo sulle classi del template: pannello overflow-hidden, img/canvas
+object-contain sovrapposti, nessun h-auto sull'immagine (era la causa dello scorrimento).
+"""
+from pathlib import Path
+
+TEMPLATE = Path(__file__).resolve().parents[1] / "templates" / "measure" / "task_execute.html"
+
+
+def _panel():
+    src = TEMPLATE.read_text(encoding="utf-8")
+    start = src.rindex("<div", 0, src.index('x-data="visionExecute()"'))
+    end = src.index("MEASUREMENT TIMER BANNER")
+    return src[start:end]
+
+
+def _tag_with(panel, marker):
+    # Il tag (aperto) che contiene il marker; i '>' dentro le virgolette (es. "=>") non lo chiudono.
+    pos = panel.index(marker)
+    i = panel.rindex("<", 0, pos)
+    quote = None
+    for j in range(i, len(panel)):
+        c = panel[j]
+        if quote:
+            quote = None if c == quote else quote
+        elif c in "\"'":
+            quote = c
+        elif c == ">":
+            return panel[i:j + 1]
+    raise AssertionError(marker)
+
+
+def test_panel_does_not_scroll():
+    tag = _tag_with(_panel(), 'x-data="visionExecute()"')
+    assert "overflow-hidden" in tag and "min-h-0" in tag
+    assert "overflow-auto" not in tag
+
+
+def test_image_is_object_contain_without_h_auto():
+    panel = _panel()
+    img = _tag_with(panel, 'x-ref="img"')
+    assert "object-contain" in img
+    assert "h-auto" not in img
+    canvas = _tag_with(panel, 'x-ref="overlay"')
+    assert "object-contain" in canvas  # stesso fit dell'img: overlay allineato
+
+
+def test_image_box_and_outcome_column_can_shrink():
+    panel = _panel()
+    box = _tag_with(panel, 'x-show="shownImage"')
+    assert "flex-1" in box and "min-h-0" in box
+    outcome = _tag_with(panel, 'x-show="result">')
+    assert "overflow-y-auto" in outcome and "min-h-0" in outcome

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