4.2.9.1 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 }
     }