MATLAB: Color a delaunay triangulation

colorcolormapdelaunayMATLABtri

I have a delaunay triangulation like the one in attach
. I need to color inside every triangle with a color. I'd like to show the orientation of the triangles. Because I need to highlight the order. Like the second figure

Best Answer

Let's suppose that your triangulation is organized as follows
  • P: Nx2: node coordinates
  • T: Mx3: triangulation
  • F: Mx1: scalar field to be plotted, this case orientation
you can plot with the following command
 >> figure;
 >> patch('Faces',T,'Vertices',P,'FaceVertexCData',F,'FaceColor','flat');
Fabio
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