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INST Examples

Here are some examples of INST files

INST
     unit < xyz.vect
     transform {
        1 0 0 0
        0 1 0 0
        0 0 1 0
        1 3 0 1
     }
{ appearance { +edge  material { edgecolor 1 1 0 } }
    INST geom < mysurface.quad }
{INST transform {: T} geom {<dodec.off}}
{ INST
     transforms
         { LIST
     	{ < some-matrices.prj }
     	{ < others.prj }
     	{ TLIST <still more of them> }
     	
         }
     geom
         { # stuff replicated by all the above matrices
     	...
         }
}

This one resembles the origin example in the section above, but makes the X and Y edges be 1/4 the size of the window (1/4, not 1/2, since the range of ndc X and Y coordinates is -1 to +1).

{ INST
  location ndc
  geom { < xyz.vect }
  transform { .5 0 0 0  0 .5 0 0  0 0 -.009 0   0 0 -.99 1 }
}


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