+ return getPreview();
+}
+
+const void SketchPlugin_Sketch::addSub(const boost::shared_ptr<ModelAPI_Feature>& theFeature)
+{
+ boost::dynamic_pointer_cast<SketchPlugin_Feature>(theFeature)->setSketch(this);
+ data()->reflist(SKETCH_ATTR_FEATURES)->append(theFeature);
+}
+
+void SketchPlugin_Sketch::addPlane(double theX, double theY, double theZ,
+ std::list<boost::shared_ptr<GeomAPI_Shape> >& theShapes) const
+{
+ boost::shared_ptr<GeomAPI_Pnt> anOrigin(new GeomAPI_Pnt(0, 0, 0));
+ boost::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(theX, theY, theZ));
+ boost::shared_ptr<GeomAPI_Shape> aFace =
+ GeomAlgoAPI_FaceBuilder::square(anOrigin, aNormal, PLANE_SIZE);
+ theShapes.push_back(aFace);
+}
+
+boost::shared_ptr<GeomAPI_Pnt> SketchPlugin_Sketch::to3D(const double theX, const double theY)
+{
+ boost::shared_ptr<GeomDataAPI_Point> aC =
+ boost::dynamic_pointer_cast<GeomDataAPI_Point>(data()->attribute(SKETCH_ATTR_ORIGIN));
+ boost::shared_ptr<GeomDataAPI_Dir> aX =
+ boost::dynamic_pointer_cast<GeomDataAPI_Dir>(data()->attribute(SKETCH_ATTR_DIRX));
+ boost::shared_ptr<GeomDataAPI_Dir> aY =
+ boost::dynamic_pointer_cast<GeomDataAPI_Dir>(data()->attribute(SKETCH_ATTR_DIRY));
+
+ boost::shared_ptr<GeomAPI_XYZ> aSum = aC->pnt()->xyz()->added(
+ aX->dir()->xyz()->multiplied(theX))->added(aY->dir()->xyz()->multiplied(theY));
+
+ return boost::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aSum));
+}
+
+bool SketchPlugin_Sketch::isPlaneSet()
+{
+ boost::shared_ptr<GeomDataAPI_Dir> aNormal =
+ boost::dynamic_pointer_cast<GeomDataAPI_Dir>(data()->attribute(SKETCH_ATTR_NORM));
+
+ return aNormal && !(aNormal->x() == 0 && aNormal->y() == 0 && aNormal->z() == 0);