"SamuelT" <STB### [at] aolcom> wrote in message news:395F875B.D2218AA9@aol.com...
| I thought there was a function called hf_at that lets you make the highest
| part of the HF what you want. eg: hf_at 10 I'm not quite sure.

Nope, that's a poor man's 'trace()'.  'hf_height_at' returns just the y coord
of the hf cubical (only the starting, untransformed hf) from 0*x, 0*z to x, z.

Bob

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