Improve binpacking visualization

[abeham]

Currently, the visualization of a binpacking solution scales the container and all items to a unit cube. It also ignores the material property. Additionally, the rotation is performed at the corner of the container. The code is also a bit awkward having only a total of three Geometry3DModels. It would be better if each item and the container is its own model that is dynamically created and added to the visualization.

Improvements should be:

1. Color for each material
2. Display everything in unaltered aspect ratio
3. Put the coordinate center in a better position

[abeham]

r14708: worked on visualization of binpacking solutions

[abeham]

Instead of displaying the container as a solid cube, I added a wireframe model.

[abeham]

r14709: fixed materials out of range index

[abeham]

r14971: Embedded ViewPort3D into Border to catch mouse events in the background

[abeham]

r14978: Improved Bin Packing 3D View

• Fixing an overlap of triangles in the corner points in the wireframe code
• Removing unnecessary translate transforms and using centerXYZ of scaling and rotation
• Correctly calculated the center of the bin after scaling
• When an item is selected, instead of using solid cubes with semi-transparent surfaces, a wireframe model is displayed
  • The selected cube has to be drawn first, otherwise the other wireframe cubes are not transparent to it

[abeham]

r14979: Improving camera position and look direction

[jkarder]

Reviewed and made further changes, please check.

r15167: improved 3d visualization

• in UpdateVisualization, no materials are available after Clear, therefore TryGetValue is unnecessary
• removed unnecessary ctrlDown field and OnKeyDown event handler

[abeham]

ok

[abeham]

r15278: merged revisions 14708, 14709, 14971, 14978, 14979, 15167, 15230, 15233, 15240, 15241, 15276 to stable