Re: ZoomRaster background question

[Benedikt Stefansson]

Paul E. Johnson wrote:

> I don't see how to make the zoomraster background white instead of
> black.  Can you tell me how?
>

Assume you have a raster called worldRaster and white is mapped to 1 in the
colormap.Also that the worldXSize and worldYSize paramteres are known. In
ObserverSwarm put something like this:

-eraseRaster {
  // A method that overrides the default
  // black background for raster and paints
  // the raster white instead
  [worldRaster fillRectangleX0: 0
                            Y0: 0
                            X1: worldXSize
                            Y1: worldYSize
                         Color: 1];
        return self;

}

Regards,
-Benedikt
----------------
Benedikt Stefansson                 address@hidden
Department of Economics, UCLA       Fax. (310) 825-9528
Los Angeles, CA 90095-1477          Tel. (310) 825-1777



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