void SketchPlugin_ConstraintDistance::execute()
{
+ boost::shared_ptr<ModelAPI_Data> aData = data();
+
+ boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr_A =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(aData->attribute(CONSTRAINT_ATTR_ENTITY_A));
+ boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr_B =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(aData->attribute(CONSTRAINT_ATTR_ENTITY_B));
+
+ AttributeDoublePtr anAttribute =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(CONSTRAINT_ATTR_VALUE));
+
+ if (anAttr_A && anAttr_B && anAttribute->value() == 0)
+ {
+ FeaturePtr aFeature_A = anAttr_A->feature();
+ FeaturePtr aFeature_B = anAttr_B->feature();
+
+ double aValue = 40; // TODO
+ anAttribute->setValue(aValue);
+ }
}
-const boost::shared_ptr<GeomAPI_Shape>& SketchPlugin_ConstraintDistance::preview()
+Handle(AIS_InteractiveObject) SketchPlugin_ConstraintDistance::getAISShape(
+ Handle_AIS_InteractiveObject thePrevious)
{
- /// \todo Preview for distance constraint
- return getPreview();
+ if (!sketch())
+ return thePrevious;
+
+ boost::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
+
+ DataPtr aData = data();
+ boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = getFeaturePoint(aData, CONSTRAINT_ATTR_ENTITY_A);
+ boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = getFeaturePoint(aData, CONSTRAINT_ATTR_ENTITY_B);
+ if (!aPoint_A || !aPoint_B)
+ return thePrevious;
+
+ // fly out calculation
+ boost::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr =
+ boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CONSTRAINT_ATTR_FLYOUT_VALUE_PNT));
+ boost::shared_ptr<GeomAPI_Pnt2d> aFlyOutPnt = aFlyOutAttr->pnt();
+
+ boost::shared_ptr<GeomAPI_Lin2d> aFeatureLin =
+ boost::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoint_A->x(), aPoint_A->y(),
+ aPoint_B->x(), aPoint_B->y()));
+ boost::shared_ptr<GeomAPI_Pnt2d> aResult = aFeatureLin->project(aFlyOutPnt);
+ double aDistance = aFlyOutPnt->distance(aResult);
+
+ if (!aFeatureLin->isRight(aFlyOutPnt))
+ aDistance = -aDistance;
+ double aFlyout = aDistance;
+
+ //Build dimension here
+ boost::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPoint_A->x(), aPoint_A->y());
+ boost::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPoint_B->x(), aPoint_B->y());
+ if (aFlyout < 0)
+ aPoint1.swap(aPoint2);
+
+ // value calculation
+ boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(CONSTRAINT_ATTR_VALUE));
+ double aValue = aValueAttr->value();
+ if (aValue == 0) { // TODO! the default value
+ aValue = aPoint1->distance(aPoint2);
+ }
+
+ Handle(AIS_InteractiveObject) anAIS = thePrevious;
+ if (anAIS.IsNull())
+ {
+ Handle(AIS_LengthDimension) aDimAIS =
+ new AIS_LengthDimension(aPoint1->impl<gp_Pnt>(), aPoint2->impl<gp_Pnt>(), aPlane->impl<gp_Pln>());
+ aDimAIS->SetCustomValue(aValue);
+
+ Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
+ anAspect->MakeArrows3d (Standard_False);
+ anAspect->MakeText3d(false);
+ anAspect->TextAspect()->SetHeight(CONSTRAINT_TEXT_HEIGHT);
+ anAspect->MakeTextShaded(false);
+ aDimAIS->DimensionAspect()->MakeUnitsDisplayed(false);
+ aDimAIS->SetDimensionAspect (anAspect);
+ aDimAIS->SetFlyout(aFlyout);
+ aDimAIS->SetSelToleranceForText2d(CONSTRAINT_TEXT_SELECTION_TOLERANCE);
+
+ anAIS = aDimAIS;
+ }
+ else {
+ // update presentation
+ Handle(AIS_LengthDimension) aDimAIS = Handle(AIS_LengthDimension)::DownCast(anAIS);
+ if (!aDimAIS.IsNull()) {
+ aDimAIS->SetMeasuredGeometry(aPoint1->impl<gp_Pnt>(), aPoint2->impl<gp_Pnt>(), aPlane->impl<gp_Pln>());
+ aDimAIS->SetCustomValue(aValue);
+ aDimAIS->SetFlyout(aFlyout);
+
+ aDimAIS->Redisplay(Standard_True);
+ }
+ }
+ return anAIS;
+}
+
+
+boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
+ const std::string& theAttribute)
+{
+ boost::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
+
+ if (!theData)
+ return aPointAttr;
+
+ FeaturePtr aFeature;
+ boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
+ if (anAttr)
+ aFeature = anAttr->feature();
+
+ if (aFeature && aFeature->getKind() == SKETCH_POINT_KIND)
+ aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
+ (aFeature->data()->attribute(POINT_ATTR_COORD));
+ return aPointAttr;
}
