change viewing angle

[phil.a...@gmail.com]

Hi,

Is there a (simple?) way to rotate the viewing position? Ideally I would like to rotate it around the z-axis.

Apologies if this is a very basic problem but I couldn't find the solution in the documentation.
My code is just a list of polygons to be rendered as follows (many more polygons in my real example):


====================
polygon( -4.72225, -5.18114, -7.12919)( -3.42372, -5.87673, -7.32881)( -3.84587, -4.53812, -8.03641)( -4.72225, -5.18114, -7.12919)
polygon( -4.72225, -5.18114, -7.12919)( -3.84587, -4.53812, -8.03641)( -5.13147, -3.73992, -7.72335)( -4.72225, -5.18114, -7.12919)
polygon(  4.51493, -5.08705, -7.32848)(  4.82459, -6.10160, -6.28197)(  5.78043, -5.07248, -6.38950)(  4.51493, -5.08705, -7.32848)
global { language tikz }
====================


Thanks

[Gene Ressler]

Hi Phil,

 

  Because Sketch does no clipping, the only difference between rotating the eye point and rotating the whole image is the sign of the rotation. 

 

  See the pierced tetrahedron code in Para 2.5 of the manual.  This should get you started. Wrap your polygons in a def and then apply a rotation to that def with a put.

 

Gene

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