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Allegro CL version 10.1
Unrevised from 10.0 to 10.1.
10.0 version

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.


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This page was not revised from the 10.0 page.
Created 2019.8.20.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 10.1
Unrevised from 10.0 to 10.1.
10.0 version