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rasterarray border?

• To: mathgroup at smc.vnet.net
• Subject: [mg55989] rasterarray border?
• From: Manuel Marques-Pita <m.marques-pita at ed.ac.uk>
• Date: Wed, 13 Apr 2005 01:10:13 -0400 (EDT)
• Organization: Edinburgh University
• Sender: owner-wri-mathgroup at wolfram.com

hello,

I am drawing a rasterarray in which I need to draw a border/stroke round 
some of the elements in the array (all the ones != -1 below).

Show[Graphics[RasterArray[von /.
           {-1 -> RGBColor[1, 1, 1],
             0 -> RGBColor[0.97, 0.97, 1],
             1 -> RGBColor[0.3, 0, 0],
             2 -> RGBColor[1, .78, .78]}]],
     AspectRatio -> Automatic];

I haven't found a way to do this yet, any ideas/suggestions?

Thanks in advance!

Manuel

• Follow-Ups:
  • Re: rasterarray border?
    • From: yehuda ben-shimol <bsyehuda@gmail.com>