Rotate DrawViewPart around part centroid

src/Mod/TechDraw/App/DrawViewDetail.cpp

@@ -249,6 +249,11 @@ App::DocumentObjectExecReturn *DrawViewDetail::execute(void)
                                                     inputCenter,
                                                     scale);
         gp_Ax2 viewAxis = getViewAxis(Base::Vector3d(inputCenter.X(),inputCenter.Y(),inputCenter.Z()),Direction.getValue());
+        if (!DrawUtil::fpCompare(Rotation.getValue(),0.0)) {
+            mirroredShape = TechDrawGeometry::rotateShape(mirroredShape,
+                                                          viewAxis,
+                                                          Rotation.getValue());
+        }
         geometryObject = buildGeometryObject(mirroredShape,viewAxis);
         geometryObject->pruneVertexGeom(Base::Vector3d(0.0,0.0,0.0),Radius.getValue() * scale);      //remove vertices beyond clipradius
 

src/Mod/TechDraw/App/DrawViewMulti.cpp

@@ -61,6 +61,7 @@
 
 #include "Geometry.h"
 #include "GeometryObject.h"
+#include "DrawUtil.h"
 #include "DrawViewMulti.h"
 
 using namespace TechDraw;
@@ -179,6 +180,11 @@ App::DocumentObjectExecReturn *DrawViewMulti::execute(void)
                                                     inputCenter,
                                                     getScale());
         gp_Ax2 viewAxis = getViewAxis(Base::Vector3d(inputCenter.X(),inputCenter.Y(),inputCenter.Z()),Direction.getValue());
+        if (!DrawUtil::fpCompare(Rotation.getValue(),0.0)) {
+            mirroredShape = TechDrawGeometry::rotateShape(mirroredShape,
+                                                          viewAxis,
+                                                          Rotation.getValue());
+        }
         geometryObject = buildGeometryObject(mirroredShape,viewAxis);
 
 #if MOD_TECHDRAW_HANDLE_FACES

src/Mod/TechDraw/App/DrawViewPart.cpp

@@ -218,6 +218,11 @@ App::DocumentObjectExecReturn *DrawViewPart::execute(void)
                                                   getScale());
 
      gp_Ax2 viewAxis = getViewAxis(shapeCentroid,Direction.getValue());
+     if (!DrawUtil::fpCompare(Rotation.getValue(),0.0)) {
+        mirroredShape = TechDrawGeometry::rotateShape(mirroredShape,
+                                                      viewAxis,
+                                                      Rotation.getValue());
+     }
      geometryObject =  buildGeometryObject(mirroredShape,viewAxis);
 
 #if MOD_TECHDRAW_HANDLE_FACES

src/Mod/TechDraw/App/DrawViewSection.cpp

@@ -260,6 +260,11 @@ App::DocumentObjectExecReturn *DrawViewSection::execute(void)
                                                     inputCenter,
                                                     getScale());
         gp_Ax2 viewAxis = getViewAxis(Base::Vector3d(inputCenter.X(),inputCenter.Y(),inputCenter.Z()),Direction.getValue());
+        if (!DrawUtil::fpCompare(Rotation.getValue(),0.0)) {
+            mirroredShape = TechDrawGeometry::rotateShape(mirroredShape,
+                                                          viewAxis,
+                                                          Rotation.getValue());
+        }
         geometryObject = buildGeometryObject(mirroredShape,viewAxis);   //this is original shape after cut by section prism
 
 #if MOD_TECHDRAW_HANDLE_FACES
@@ -276,6 +281,12 @@ App::DocumentObjectExecReturn *DrawViewSection::execute(void)
         TopoDS_Shape mirroredSection = TechDrawGeometry::mirrorShape(sectionCompound,
                                                                      inputCenter,
                                                                      getScale());
+        gp_Ax2 viewAxis = getViewAxis(Base::Vector3d(inputCenter.X(),inputCenter.Y(),inputCenter.Z()),Direction.getValue());
+        if (!DrawUtil::fpCompare(Rotation.getValue(),0.0)) {
+            mirroredSection = TechDrawGeometry::rotateShape(mirroredSection,
+                                                            viewAxis,
+                                                            Rotation.getValue());
+        }
 
         sectionFaceWires.clear();
         TopoDS_Compound newFaces;

src/Mod/TechDraw/App/GeometryObject.cpp

@@ -561,6 +561,32 @@ TopoDS_Shape TechDrawGeometry::mirrorShape(const TopoDS_Shape &input,
     return transShape;
 }
 
+//!rotates a shape about a viewAxis
+TopoDS_Shape TechDrawGeometry::rotateShape(const TopoDS_Shape &input,
+                             gp_Ax2& viewAxis,
+                             double rotAngle)
+{
+    TopoDS_Shape transShape;
+    if (input.IsNull()) {
+        return transShape;
+    }
+
+    gp_Ax1 rotAxis = viewAxis.Axis();
+    double rotation = rotAngle * M_PI/180.0;
+
+    try {
+        gp_Trsf tempTransform;
+        tempTransform.SetRotation(rotAxis,rotation);
+        BRepBuilderAPI_Transform mkTrf(input, tempTransform);
+        transShape = mkTrf.Shape();
+    }
+    catch (...) {
+        Base::Console().Log("GeometryObject::rotateShape - rotate failed.\n");
+        return transShape;
+    }
+    return transShape;
+}
+
 //!scales a shape about a origin
 TopoDS_Shape TechDrawGeometry::scaleShape(const TopoDS_Shape &input,
                                           double scale)

src/Mod/TechDraw/App/GeometryObject.h

@@ -26,6 +26,7 @@
 #include <TopoDS_Shape.hxx>
 #include <TopoDS_Compound.hxx>
 #include <gp_Pnt.hxx>
+#include <gp_Ax2.hxx>
 
 #include <Base/Vector3D.h>
 #include <Base/BoundBox.h>
@@ -55,6 +56,10 @@ TopoDS_Shape TechDrawExport mirrorShape(const TopoDS_Shape &input,
                         double scale = 1.0);
 TopoDS_Shape TechDrawExport scaleShape(const TopoDS_Shape &input,
                                        double scale);
+TopoDS_Shape TechDrawExport rotateShape(const TopoDS_Shape &input,
+                             gp_Ax2& viewAxis,
+                             double rotAngle);
+
 
 //! Returns the centroid of shape, as viewed according to direction
 gp_Pnt TechDrawExport findCentroid(const TopoDS_Shape &shape,