Implement option for perspective drawing views

src/Mod/TechDraw/App/GeometryObject.h

@@ -98,6 +98,10 @@ public:
     void clearFaceGeom();
     void setIsoCount(int i) { m_isoCount = i; }
     void setParentName(std::string n);                          //for debug messages
+    void isPerspective(bool b) { m_isPersp = b; }
+    bool isPerspective(void) { return m_isPersp; }
+    void setFocus(double f) { m_focus = f; }
+    double getFocus(void) { return m_focus; }
     void pruneVertexGeom(Base::Vector3d center, double radius);
 
     TopoDS_Shape getVisHard(void)    { return visHard; }
@@ -144,6 +148,8 @@ protected:
     std::string m_parentName;
     TechDraw::DrawView* m_parent;
     int m_isoCount;
+    bool m_isPersp;
+    double m_focus;
 };
 
 } //namespace TechDrawGeometry