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