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@node Vectors
@section Vectors
2D vector math operations. Vector objects are of type vector2 to avoid
confusion with regular Scheme vectors.
@anchor{2d vector2 vector2}@defspec vector2
@end defspec
@anchor{2d vector2 vector2?}@defspec vector2?
@end defspec
@anchor{2d vector2 vx}@defspec vx
@end defspec
@anchor{2d vector2 vy}@defspec vy
@end defspec
@anchor{2d vector2 null-vector2}@defvar null-vector2
@end defvar
@anchor{2d vector2 identity-vector2}@defvar identity-vector2
@end defvar
@anchor{2d vector2 vector2-polar}@defun vector2-polar r theta
Convert the polar coordinates (R, THETA) into a cartesian vector.
@end defun
@anchor{2d vector2 v+}@defun v+ . vectors
Return the sum of all VECTORS.
@end defun
@anchor{2d vector2 v*}@defun v* . vectors
Return the product of all VECTORS.
@end defun
@anchor{2d vector2 vscale}@defun vscale v scalar
Multiply the vector V by a scalar value.
@end defun
@anchor{2d vector2 vmag}@defun vmag v
Return the magnitude of the vector V.
@end defun
@anchor{2d vector2 vnorm}@defun vnorm v
Normalize the vector V.
@end defun
@anchor{2d vector2 vdot}@defun vdot v1 v2
Return the dot product of the vectors V1 and V2.
@end defun
@anchor{2d vector2 vcross}@defun vcross v1 v2
Return the cross product of the vectors V1 and V2. Technically, the
cross product of a 2D vector is not defined. This function instead
returns the Z coordinate of the cross product as if the vectors were in
3D space.
@end defun
@anchor{2d vector2 vector2-translate}@defun vector2-translate v
Perform an OpenGL translate operation with the vector V.
@end defun
@anchor{2d vector2 vector2-scale}@defun vector2-scale v
Perform an OpenGL scale operation with the vector V.
@end defun
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