surface colors

[John W. Eaton]

On 27-Nov-2007, Kai Habel wrote:

| here is a patch that fixes the following problem:
| 
| > while implementing the cylinder function, I noticed the following small
| > problem with respect to surface colors.
| > 
| > If you try a simple surface:
| > 
| > pcolor(eye(3))
| > 
| > you can see 4 rectangles with a light blue or green color.
| > 
| > It seems gnuplot calculates the mean value for each rectangle (0.5 -
| > green or 0.25 - light blue) and assigns the respective color. Matlab
| > instead, uses the value of a single vertex (0 - dark blue, 1 - dark red).
| > 
| > I have played with the corners2color option of pm3d and if I add
| > 'corners2color c3' to the pm3d calls, the colors are the same as matlab's.
| 
| 
| 2007-11-27  Kai Habel  <address@hidden>
| 
|   * plot/__go_draw_axes__.m: Set quadrilateral color according to
|     z-value of vertex 'c3'.

I checked it in.

Thanks,

jwe