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image from graphics3d - rid black line

• To: mathgroup at smc.vnet.net
• Subject: [mg102769] image from graphics3d - rid black line
• From: "van der Burgt, Maarten" <Maarten.VanDerBurgt at icos.be>
• Date: Wed, 26 Aug 2009 07:58:39 -0400 (EDT)

Hello,

For testing certain image processing methods I want to convert a
Graphics3D object as generated by



my3d = Plot3D[Exp[-x^2 - y^2]/2, {x, -2, 2}, {y, -2, 2},

  PlotRange -> {0, 1},

  ColorFunction -> Function[{x, y, z}, GrayLevel[(1 + Cos[50 z])/2]],

  ColorFunctionScaling -> False, PlotPoints -> 100, Mesh -> False,

  Lighting -> {{"Ambient", White}}, Boxed -> False, Axes -> False]



to a raster image. But the black line around the graphics forms a
discontinuity in the image greyvalues I want to avoid. Setting the
options Mesh -> False,  Boxed -> False, Axes -> False do not help me.

Digging deep into the  structure of my3d I worked out the following does
the job:



my3d /. {x___, Line[___], y___} -> {x, y}



But I would think there must be an easier, more transparent,  way to
achieve this.

Anyone any ideas?



Thanks for your help.





Maarten van der Burgt

Icos Vision Systems - KLA-Tencor

Leuven, Belgium

• Follow-Ups:
  • Re: image from graphics3d - rid black line
    • From: Thomas Dowling <thomasgdowling@gmail.com>