[Qt-interest] How to draw a 2-D matrix as a 3-D surface

[Enrico Ros]

You can look around for libraries supporting the plotting of 2D data on a 3D-
like graph. QwtPlot3D comes to mind (http://qwtplot3d.sourceforge.net/) but it 
uses OpenGL too.

If you don't want to use OpenGL you can do it by hand but you have to do a 
small "3D engine like" code. You could use QGraphicsView, use an isometric o 
perspective projection to map the mesh squares (3 coords per 4 vertices) to 
polygons (4 sided), z-sort them and create QGraphicsItems...

..however this is only if you want to get rid of OpenGL and don't depend on 
any external library.

Enrico Ros

 
 
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