Function

Summary

Transforms a list of integer pairs representing distances by the inverse of a transform.

Package

graphics-ports

Signature

untransform-distances transform distances => result

Arguments

transform

A transform.

distances

A list of pairs of real numbers.

Values

result

A list of pairs of real numbers.

Description

The function untransform-distances transforms a list of alternating ( dx dy ) pairs in distances by the effective inverse of transform . Transformed values are returned as a new list.

Notes

See graphics-state for details of how a transform is used.

See also

graphics-state
transform