- }
-
- // the value should to be computed here, not in the getAISObject in order to change the model value
- // inside the object transaction. This is important for creating a constraint by preselection.
- // The display of the presentation in this case happens after the transaction commit
- std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
- GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
- if(!aFlyOutAttr->isInitialized())
- compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
-}
-
-bool SketchPlugin_ConstraintDistance::compute(const std::string& theAttributeId)
-{
- if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
- return false;
-
- if (!sketch())
- return false;
-
- DataPtr aData = data();
- std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
- aData, SketchPlugin_Constraint::ENTITY_A());
- std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
- aData, SketchPlugin_Constraint::ENTITY_B());
-
- std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
- std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
-
- if (aPoint_A && aPoint_B) {
- aPnt_A = aPoint_A->pnt();
- aPnt_B = aPoint_B->pnt();
- } else if (!aPoint_A && aPoint_B) {
- //std::shared_ptr<SketchPlugin_Line> aLine = SketcherPrs_Tools::getFeatureLine(
- // aData, SketchPlugin_Constraint::ENTITY_A());
- //if (aLine) {
- // aPnt_B = aPoint_B->pnt();
- // aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
- //}
- } else if (aPoint_A && !aPoint_B) {
- //std::shared_ptr<SketchPlugin_Line> aLine = SketcherPrs_Tools::getFeatureLine(
- // aData, SketchPlugin_Constraint::ENTITY_B());
- //if (aLine) {
- // aPnt_A = aPoint_A->pnt();
- // aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
- //}
- }
- if (!aPnt_A || !aPnt_B)
- return false;
-
- std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
- GeomDataAPI_Point2D>(aData->attribute(theAttributeId));
-
- std::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPnt_A->x(), aPnt_A->y());
- std::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPnt_B->x(), aPnt_B->y());
- // it is not possible to create lin2d on the points with equal position
- if (aPoint1->distance(aPoint1) < tolerance)
- return false;
-
- std::shared_ptr<GeomAPI_Lin2d> aLine = std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPnt_A, aPnt_B));
- double aDist = aPoint1->distance(aPoint2)/5.;
- std::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
- aFlyOutAttr->setValue(aFPnt);
-
- return true;