Compute distance between point given as (px, py) and line spanned by points (lx1, ly1) and (lx2, ly2). From http://mathworld.wolfram.com/Point-LineDistance2-Dimensional.html
1 | point_line_dist(px, py, lx_1, ly_1, lx_2, ly_2)
|
px |
x coordinate of point outside the |
py |
y coordinate of point |
lx_1, |
x coordinate of 1st point spanning a line |
ly_1, |
y coordinate of 1st point spanning a line |
lx_2, |
x coordinate of 2nd point spanning a line |
ly_2, |
y coordinate of 2nd point spanning a line |
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