2.3 DUIM-Geometry Module
transform-box
Generic function
Summary
Applies the transform to the rectangle specified by the four coordinate arguments.
Signature
transform-boxtransform x1 y1 x2 y2 => left top right bottom
Arguments
- transform
- An instance of type
<transform>. - x1
- An instance of type
<real>. - y1
- An instance of type
<real>. - x2
- An instance of type
<real>. - y2
- An instance of type
<real>.
Values
- left
- An instance of type
<real>. - top
- An instance of type
<real>. - right
- An instance of type
<real>. - bottom
- An instance of type
<real>.
Library
duim-geometry
Module
duim-geometry
Description
Applies the transform transform to the rectangle specified by the four coordinate arguments. transform-box is the spread version of transform-region in the case where the transform is rectilinear and the region is a rectangle.
The arguments x1, y1, x2, and y2 are canonicalized and the four return values specify the minimum and maximum points of the transformed rectangle in the order left, top, right, and bottom.
An error is signalled if transform does not satisfy rectilinear-transform?.