FunctionPackage: cgToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version

line-x-at-y-x-y

Arguments: x1 y1 x2 y2 y

Returns the x coordinate where a line has a particular y coordinate, or nil for a horizontal line.

The first four arguments are real numbers that specify any two distinct points on the line. The last argument is a real number for the y coordinate. The returned value is a real number or nil.

See also line-x-at-y and line-y-at-x-x-y.


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Documentation for Allegro CL version 9.0. This page was not revised from the 8.2 page.
Created 2012.5.30.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version