Angle between two line independant of the universal Reference coordinate system

[RavensFan]

The supplementary angle is also acceptable.  It is bisecting the angle between the two line segments on the other >than 180° side.

If you have two line segments that are at 180 to each other, and you bisect that, you'll have a segment that is perpendicular to those two.  That segment could be to either side.  Which one do you choose?

Now the poster sounds like they are defining the problem tighter and they only want the bisector of the "acute" angle between the segments.  So they need to check the angle of the bisector line segment with one of the others, and if it is greater than 90, add or subtract 180 from their bisector line segment.

[camerond]

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@RavensFan wrote:

Now the poster sounds like they are defining the problem tighter and they only want the bisector of the "acute" angle between the segments.  So they need to check the angle of the bisector line segment with one of the others, and if it is greater than 90, add or subtract 180 from their bisector line segment.

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That's what I said 8 (or 9) posts up.

Cameron

[Nghtcrwlr]

Yes i need actually the angle between the lines... The reason why i was getting "-ve" angles was because of the IMAQ intersection VI. Here the angle reference (for example, 0 degrees) is the horizontal, right axis. The angle is computed from Line 1 to Line 2