Part: Enable trimmed curves to set their parameter range, from c++ and Python

=============================================================================

>>> geometries = ActiveSketch.Geometry
>>> geo2 = geometries[2]
>>> geo2
ArcOfCircle (Radius : 27.5267, Position : (-70.4702, -31.8933, 0), Direction : (0, 0, 1), Parameter : (1.34187, 2.35619))
>>> geo2.setParameterRange(1,3)
>>> geometries[2]=geo2
>>> ActiveSketch.Geometry=geometries

src/Mod/Part/App/ArcPy.xml

@@ -29,5 +29,12 @@
     const Geom_Ellipse & value(void) const {return *getGeom_EllipsePtr();}
 	</ClassDeclarations>
 	-->
+    <Methode Name="setParameterRange" Const="false">
+        <Documentation>
+            <UserDocu>
+                Re-trims this curve to the provided parameter range ([Float=First, Float=Last])
+                    </UserDocu>
+                </Documentation>
+            </Methode>
   </PythonExport>
 </GenerateModel>

src/Mod/Part/App/ArcPyImp.cpp

@@ -197,6 +197,31 @@ int ArcPy::PyInit(PyObject* args, PyObject* /*kwd*/)
     return -1;
 }
 
+PyObject* ArcPy::setParameterRange(PyObject * args)
+{
+    Handle(Geom_Geometry) g = getGeomTrimmedCurvePtr()->handle();
+    Handle(Geom_TrimmedCurve) c = Handle(Geom_TrimmedCurve)::DownCast(g);
+    try {
+        if (!c.IsNull()) {
+            double u,v;
+            u=c->FirstParameter();
+            v=c->LastParameter();
+            if (!PyArg_ParseTuple(args, "|dd", &u,&v))
+                return 0;
+            getGeomTrimmedCurvePtr()->setRange(u,v);
+            Py_Return;
+        }
+    }
+    catch (Base::CADKernelError& e) {
+        PyErr_SetString(PartExceptionOCCError, e.what());
+        return 0;
+    }
+
+    PyErr_SetString(PartExceptionOCCError, "Geometry is not a trimmed curve");
+    return 0;
+}
+
+
 PyObject *ArcPy::getCustomAttributes(const char* /*attr*/) const
 {
     return 0;
@@ -204,5 +229,5 @@ PyObject *ArcPy::getCustomAttributes(const char* /*attr*/) const
 
 int ArcPy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
 {
-    return 0; 
+    return 0;
 }

src/Mod/Part/App/Geometry.cpp

@@ -1549,6 +1549,25 @@ bool GeomTrimmedCurve::intersectBasisCurves(  const GeomTrimmedCurve * c,
 
 }
 
+void GeomTrimmedCurve::getRange(double& u, double& v) const
+{
+    Handle(Geom_TrimmedCurve) curve =  Handle(Geom_TrimmedCurve)::DownCast(handle());
+    u = curve->FirstParameter();
+    v = curve->LastParameter();
+}
+
+void GeomTrimmedCurve::setRange(double u, double v)
+{
+    try {
+        Handle(Geom_TrimmedCurve) curve =  Handle(Geom_TrimmedCurve)::DownCast(handle());
+
+        curve->SetTrim(u, v);
+    }
+    catch (Standard_Failure& e) {
+        THROWM(Base::CADKernelError,e.GetMessageString())
+    }
+}
+
 // -------------------------------------------------
 TYPESYSTEM_SOURCE_ABSTRACT(Part::GeomArcOfConic,Part::GeomTrimmedCurve)
 

src/Mod/Part/App/Geometry.h

@@ -101,9 +101,9 @@ protected:
 
 protected:
     Geometry();
-    
+
 protected:
-    boost::uuids::uuid tag;    
+    boost::uuids::uuid tag;
 
 private:
     Geometry(const Geometry&);
@@ -172,12 +172,12 @@ public:
     double curvatureAt(double u) const;
     double length(double u, double v) const;
     bool normalAt(double u, Base::Vector3d& dir) const;
-    bool intersect(GeomCurve * c, 
-                   std::vector<std::pair<Base::Vector3d, Base::Vector3d>>& points, 
+    bool intersect(GeomCurve * c,
+                   std::vector<std::pair<Base::Vector3d, Base::Vector3d>>& points,
                    double tol = Precision::Confusion()) const;
-    
+
     void reverse(void);
-    
+
 protected:
     static bool intersect(const Handle(Geom_Curve) c, const Handle(Geom_Curve) c2,
                           std::vector<std::pair<Base::Vector3d, Base::Vector3d>>& points,
@@ -228,11 +228,11 @@ class PartExport GeomBSplineCurve : public GeomBoundedCurve
 public:
     GeomBSplineCurve();
     GeomBSplineCurve(const Handle(Geom_BSplineCurve)&);
-    
+
     GeomBSplineCurve( const std::vector<Base::Vector3d>& poles, const std::vector<double>& weights,
                       const std::vector<double>& knots, const std::vector<int>& multiplicities,
                       int degree, bool periodic=false, bool checkrational = true);
-    
+
     virtual ~GeomBSplineCurve();
     virtual Geometry *copy(void) const;
 
@@ -353,10 +353,13 @@ public:
     void setHandle(const Handle(Geom_TrimmedCurve)&);
     const Handle(Geom_Geometry)& handle() const;
 
-    bool intersectBasisCurves(  const GeomTrimmedCurve * c, 
-                            std::vector<std::pair<Base::Vector3d, Base::Vector3d>>& points, 
+    bool intersectBasisCurves(  const GeomTrimmedCurve * c,
+                            std::vector<std::pair<Base::Vector3d, Base::Vector3d>>& points,
                             double tol = Precision::Confusion()) const;
-    
+
+    virtual void getRange(double& u, double& v) const;
+    virtual void setRange(double u, double v);
+
 protected:
     Handle(Geom_TrimmedCurve) myCurve;
 };
@@ -395,6 +398,9 @@ public:
     virtual void getRange(double& u, double& v, bool emulateCCWXY) const = 0;
     virtual void setRange(double u, double v, bool emulateCCWXY) = 0;
 
+    inline virtual void getRange(double& u, double& v) const { getRange(u,v,false);};
+    inline virtual void setRange(double u, double v) { setRange(u,v,false);};
+
     bool isReversed() const;
     double getAngleXU(void) const;
     void setAngleXU(double angle);
@@ -429,7 +435,7 @@ public:
     virtual GeomBSplineCurve* toNurbs(double first, double last) const;
 
     const Handle(Geom_Geometry)& handle() const;
-    
+
     void setHandle(const Handle(Geom_Circle)&);
 
 private:
@@ -537,7 +543,7 @@ public:
     GeomHyperbola(const Handle(Geom_Hyperbola)&);
     virtual ~GeomHyperbola();
     virtual Geometry *copy(void) const;
-    
+
     double getMajorRadius(void) const;
     void setMajorRadius(double Radius);
     double getMinorRadius(void) const;
@@ -598,7 +604,7 @@ public:
     GeomParabola(const Handle(Geom_Parabola)&);
     virtual ~GeomParabola();
     virtual Geometry *copy(void) const;
-    
+
     double getFocal(void) const;
     void setFocal(double length);
 
@@ -628,9 +634,9 @@ public:
 
     double getFocal(void) const;
     void setFocal(double length);
-    
+
     Base::Vector3d getFocus(void) const;
-    
+
     virtual void getRange(double& u, double& v, bool emulateCCWXY) const;
     virtual void setRange(double u, double v, bool emulateCCWXY);
 
@@ -687,7 +693,7 @@ public:
     Base::Vector3d getStartPoint() const;
     Base::Vector3d getEndPoint() const;
 
-    void setPoints(const Base::Vector3d& p1, 
+    void setPoints(const Base::Vector3d& p1,
                    const Base::Vector3d& p2);
 
     // Persistence implementer ---------------------
@@ -1038,7 +1044,7 @@ private:
 
 
 // Helper functions for fillet tools
-PartExport 
+PartExport
 bool find2DLinesIntersection(const Base::Vector3d &orig1, const Base::Vector3d &dir1,
                              const Base::Vector3d &orig2, const Base::Vector3d &dir2,
                              Base::Vector3d &point);