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Action:
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Gets the projection of a position on to a line.
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Filename:
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kern/kern_scm/pos_scm.cxx
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Syntax:
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(position:project-to-line position line-pos line-dir)
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Arg Types:
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position
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position
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line-pos
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position
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line-dir
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gvector
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Returns:
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position
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Description:
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line-pos and
line-dir together define the line. This extension returns the
position on the line.
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position specifies the position to project.
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line-pos specifies a position on the line.
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line-dir specifies a gvector defining the direction of the line.
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Example:
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; position:project-to-line
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; Project a position onto a line.
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(position:project-to-line (position 10 10 10)
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(position 0 0 0) (gvector 0 1 0))
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;; #[position 0 10 0]
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