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Description:
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A
position object represents a location in 3D Cartesian space, and is subject to certain direction and transformation operations. Position coordinates are entered relative to the active coordinate system.
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Derivation:
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position : scheme-object
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C++ Type:
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SPAposition
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External Rep:
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#[position %.15g %.15g %.15g]
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where the first double is the
x-coordinate,
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the second double is the
y-coordinate,
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and the third double is the
z-coordinate.
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Example:
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; position (data type)
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; Define and inquire a position object.
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(define my_origin (position 0 0 0))
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;; my_origin
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(position? my_origin)
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;; #t
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