+
+boost::shared_ptr<ModelAPI_Feature> PartSet_Tools::NearestFeature(QPoint thePoint,
+ Handle_V3d_View theView,
+ boost::shared_ptr<ModelAPI_Feature> theSketch,
+ const std::list<XGUI_ViewerPrs>& theFeatures)
+{
+ double aX, anY;
+ gp_Pnt aPoint = PartSet_Tools::ConvertClickToPoint(thePoint, theView);
+ PartSet_Tools::ConvertTo2D(aPoint, theSketch, theView, aX, anY);
+
+ boost::shared_ptr<ModelAPI_Feature> aFeature;
+ std::list<XGUI_ViewerPrs>::const_iterator anIt = theFeatures.begin(), aLast = theFeatures.end();
+
+ boost::shared_ptr<ModelAPI_Feature> aDeltaFeature;
+ double aMinDelta = -1;
+ XGUI_ViewerPrs aPrs;
+ for (; anIt != aLast; anIt++) {
+ aPrs = *anIt;
+ if (!aPrs.feature())
+ continue;
+ double aDelta = DistanceToPoint(aPrs.feature(), aX, anY);
+ if (aMinDelta < 0 || aMinDelta > aDelta) {
+ aMinDelta = aDelta;
+ aDeltaFeature = aPrs.feature();
+ }
+ }
+ return aDeltaFeature;
+}
+
+double PartSet_Tools::DistanceToPoint(boost::shared_ptr<ModelAPI_Feature> theFeature,
+ double theX, double theY)
+{
+ double aDelta = 0;
+ if (theFeature->getKind() != "SketchLine")
+ return aDelta;
+
+ boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
+
+ boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
+ boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_START));
+ boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
+ boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_END));
+
+ double aX, anY;
+ PartSet_Tools::ProjectPointOnLine(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y(), theX, theY, aX, anY);
+
+ aDelta = gp_Pnt(theX, theY, 0).Distance(gp_Pnt(aX, anY, 0));
+
+ return aDelta;
+}