2.3 DUIM-Geometry Module
box-edges
Generic function
Summary
Returns the bounding box of a region.
Signature
box-edgesregion => left top right bottom
Arguments
- region
- An instance of type
<region>.
Values
- left
- An instance of type
<integer>. - top
- An instance of type
<integer>. - right
- An instance of type
<integer>. - bottom
- An instance of type
<integer>.
Library
duim-geometry
Module
duim-geometry
Description
Returns the bounding box of region as four integers specifying the x and y coordinates of the top left point and the x and y coordinates of the bottom right point of the box
The argument region must be either a bounded region (such as a line or an ellipse) or some other object that obeys the bounding box protocol, such as a sheet.
The four returned values left, top, right, and bottom will satisfy the inequalities
left <= right top <= bottom