an apology and a bug fix for vtkProjectedTexture

[John Biddiscombe]

I posted a bug for vtkTexture (last week or before) saying there were
problems with the colours. My apologies, I had the
MapScalarsThroughLookupTable set by mistake.

----

In 
vtkProjectedTexture constructor, 
  this->AspectRatio[0] = 0.0;
  this->AspectRatio[1] = 1.0;
  this->AspectRatio[2] = 0.0;

should very certainly not have zeros as this causes Div by Zero errors on
first use

  this->AspectRatio[0] = 1.0;
  this->AspectRatio[1] = 1.0;
  this->AspectRatio[2] = 1.0;

is more sensible.

ta taa

John B



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