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untransform-point

Function
Summary

Transforms a point by multiplying it by the inverse of a given transform.

Package

graphics-ports

Signature

untransform-point transform x y => x2 , y2

Arguments

transform

A transform.

x

A real number.

y

A real number.

Values

x2

A real number.

y2

A real number.

Description

The untransform-point function transform the point ( x y ) by effectively multiplying it by the inverse of transform . The transformed ( x y ) is returned as two values.


LispWorks CAPI Reference Manual - 17 Mar 2008

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