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Allegro CL version 8.2
This page is new in 8.2.

line-y-at-x-x-y

Arguments: x1 y1 x2 y2 x

Returns the y coordinate where a line has a particular x coordinate, or nil for a vertical 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 x coordinate. The returned value is a real number or nil.

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


Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.2. This page is new in the 8.2 release.
Created 2010.1.21.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 8.2
This page is new in 8.2.