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Reduce String Segments

This option will remove redundant points from a string.
It walks along the string and considers three points at a time, says 1,2,3.
If the square offset of point 3 from the line 1-2 is less than the 'Max Offset' tolerance value
point 3 can be removed from the string.
It will then consider points 1,2,4 and repeat the process.

If the square offset distance is greater than 'Max Offset' value, it moves on to
the next set of points, 2,3,4.
This process is repeated all along the selected strings.

In this example, points 2 and 3 would be removed and the string would become
points 1, 4,5, ...