Segment that respects three points lying on the same line:
[math] \;\;[/math] TrimLine3Pts[A,B,C, m1, m2]
[math] \;\;\;[/math] A,B,C the three given points;
[math] \;\;\;[/math] m1, m2 the margins (padding)
Also useful for drawing trimmed lines.
Construction: [url]http://www.geogebratube.org/material/show/id/87349[/url]
Example: [url]http://www.geogebratube.org/material/show/id/35525[/url]