0031570: Samples - add Qt samples similar to standard MFC samples

Added Qt sample OCCTOverview providing examples of use of OCCT API with relevant code and demonstration of results in the viewer.

Off-topic: some unused images are removed from dox/introduction/images/

samples/OCCTOverview/code/TopologySamples.h

@@ -0,0 +1,80 @@
+// Copyright (c) 2020 OPEN CASCADE SAS
+//
+// This file is part of the examples of the Open CASCADE Technology software library.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
+
+#ifndef TOPOLOGYSAMPLES_H
+#define TOPOLOGYSAMPLES_H
+
+#include "BaseSample.h"
+
+#include <AIS_InteractiveContext.hxx>
+
+//! Implements Topology samples
+class TopologySamples : public BaseSample
+{
+  DEFINE_STANDARD_RTTI_INLINE(TopologySamples, BaseSample)
+public:
+
+  TopologySamples (const TCollection_AsciiString& theSampleSourcePath,
+                   const Handle(AIS_InteractiveContext)& theContext)
+  : BaseSample(theSampleSourcePath, theContext)
+  {}
+
+protected:
+  virtual void ExecuteSample (const TCollection_AsciiString& theSampleName) Standard_OVERRIDE;
+
+private:
+  // One function for every sample
+  void Vertex3dSample();
+  void Edge3dSample();
+  void Face3dSample();
+  void Wire3dSample();
+  void Shell3dSample();
+  void Solid3dSample();
+  void Edge2dSample();
+  void Box3dSample();
+  void Cylinder3dSample();
+  void Revolution3dSample();
+  void TopologyIterator3dSample();
+  void TopologyExplorer3dSample();
+  void AssessToCurve3dSample();
+  void AssessToCompositeCurve3dSample();
+  void AssessToSurface3dSample();
+  void Common3dSample();
+  void Cut3dSample();
+  void Fuse3dSample();
+  void Section3dSample();
+  void Splitter3dSample();
+  void Defeaturing3dSample();
+  void Fillet3dSample();
+  void Chamfer3dSample();
+  void Offset3dSample();
+  void Evolved3dSample();
+  void Copy3dSample();
+  void Transform3dSample();
+  void ConvertToNurbs3dSample();
+  void SewContiguousFaces3dSample();
+  void CheckValidity3dSample();
+  void ComputeLinearProperties3dSample();
+  void ComputeSurfaceProperties3dSample();
+  void ComputeVolumeProperties3dSample();
+};
+
+#endif  //TOPOLOGYSAMPLES_H