The module PDL::Graphics::TriD, part of PDL, has a 3-D plotting capability using OpenGL (other formats are possible). This plots points on a surface: 
perldl> points3d [sqrt(rvals(zeroes(50,50))/2)];

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-Mark

In reply to Re: Representing points in three dimensional by kvale
in thread Representing points in three dimensional by Jaya

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