Hi,
Sean has left the following comment at Create an Elliptical Hyperboloid
Model and Diagram
http://www.google-melange.com/gci/task/view/google/gci2012/7979230:
almost
That looks almost right. Note if you run "sed hyp" that definitely got the
labels right (you're welcome to use the wireframe overlayed on a raytrace
as your final image, but you'll need to make the ehy smaller (scaled down)
so it draws fewer lines.
I only noticed a few problems:
H is a vector from point V, so it should be a solid arrow to H
since H is a vector, there shouldn't be a sphere at H but instead at c
'c' is a scalar value, so it should be a dashed line from H
"shape" is a region, so it should have a ".r" suffix
you have overlaps, you'll need to subtract everything from ehy in shape.r
you should have an lines.r that unions 'everything' (probably could be
renamed too)
you should have a 'ehy' top-level group that includes shape.r and lines.r
you should delete background
That way, you have a proper hierarchy and no modeling errors. If you
run "tops", you'll see just the 'ehy' primitive. If you run 'l ehy', you'll
see the various parameters (which are scalars, which are points/vectors).
Looking good!
Greetings,
The Google Open Source Programs Team
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