+ if (!sketch())
+ return thePrevious;
+
+ boost::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
+
+ boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = boost::dynamic_pointer_cast<
+ ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ if (!anAttr)
+ return thePrevious;
+ FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
+ if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
+ return thePrevious;
+
+ boost::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = boost::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
+
+ DataPtr aData = aFeature->data();
+ boost::shared_ptr<GeomDataAPI_Point2D> aStartPoint = boost::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::START_ID()));
+ boost::shared_ptr<GeomDataAPI_Point2D> anEndPoint = boost::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
+
+ boost::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aStartPoint->x(), aStartPoint->y());
+ boost::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(anEndPoint->x(), anEndPoint->y());
+ boost::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = boost::shared_ptr<GeomAPI_Pnt>();
+ if (aFlyOutAttr->isInitialized()) {
+ aFlyoutPnt = sketch()->to3D(aFlyOutAttr->x(), aFlyOutAttr->y());
+ } else {
+ boost::shared_ptr<GeomAPI_Lin2d> aLine =
+ boost::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aStartPoint->pnt(), anEndPoint->pnt()));
+ double aDist = aPoint1->distance(aPoint2)/5.;
+ boost::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
+ aFlyOutAttr->setValue(aFPnt);
+ aFlyoutPnt = sketch()->to3D(aFPnt->x(), aFPnt->y());
+ }
+ // value calculation
+ boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = boost::dynamic_pointer_cast<
+ ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
+ double aValue = aValueAttr->value();
+
+ AISObjectPtr anAIS = thePrevious;
+ if (!anAIS)
+ anAIS = AISObjectPtr(new GeomAPI_AISObject);
+ anAIS->createDistance(aPoint1, aPoint2, aFlyoutPnt, aPlane, aValue);
+
+ // Set color from preferences
+ std::vector<int> aRGB = Config_PropManager::color("Visualization", "length_color", LENGTH_COLOR);
+ anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
+ return anAIS;
+}
+
+void SketchPlugin_ConstraintLength::move(double theDeltaX, double theDeltaY)
+{
+ boost::shared_ptr<ModelAPI_Data> aData = data();
+ if (!aData->isValid())
+ return;
+
+ boost::shared_ptr<GeomDataAPI_Point2D> aPoint = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
+ aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
+ aPoint->move(theDeltaX, theDeltaY);