with-transformed-point Macro

Summary

Binds a point transformed by a given ports transform to two variables across the body of the macro.

Package

graphics-ports

Signature

with-transformed-point (new-x new-y port x y) &body body => result

Arguments

Values

Description

The macro with-transformed-point transforms the point given by (x y) using port's transform and new-x and new-y are bound to the transformed point. The forms in body are then evaluated as an implicit progn with this binding.