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tet - visualization with vertex arrays

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This commit is contained in:
Joachim Schoeberl 2012-06-07 18:49:41 +00:00
parent cb06d775a5
commit 61a310d740
1 changed files with 21 additions and 2 deletions
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23
libsrc/visualization/vsmesh.cpp
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@ -1998,13 +1998,13 @@ namespace netgen
Vec<3> n;
glBegin (GL_TRIANGLE_STRIP);
// Philippose - 16/02/2010
// Add Mesh size based coloring of
// meshes also for the volume elements
if(vispar.colormeshsize)
{
glBegin (GL_TRIANGLE_STRIP);
n = Cross (pts[1]-pts[0], pts[2]-pts[0]);
glNormal3dv (n);
@ -2034,9 +2034,27 @@ namespace netgen
SetOpenGlColor (locms(el[1]-1), minh, maxh, 0);
glVertex3dv (pts[1]);
glEnd();
}
else // Do not color mesh based on mesh size
{
GLubyte ind[4][3] = { { 0,1,2 }, { 3,1,0 },
{ 1,3,2 }, { 2,3,0 } };
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_DOUBLE, 0, &pts[0](0));
for (int j = 0; j < 4; j++)
{
glNormal3dv (Cross (pts[ind[j][1]]-pts[ind[j][0]],
pts[ind[j][2]]-pts[ind[j][0]]));
glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_BYTE, &ind[j][0]);
}
glDisableClientState(GL_VERTEX_ARRAY);
/*
glBegin (GL_TRIANGLE_STRIP);
glNormal3dv (Cross (pts[1]-pts[0], pts[2]-pts[0]));
glVertex3dv (pts[0]);
@ -2051,9 +2069,10 @@ namespace netgen
glNormal3dv (Cross (pts[1]-pts[3], pts[0]-pts[3]));
glVertex3dv (pts[1]);
glEnd();
*/
}
glEnd();
}
}
}