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How to measure destance between a line's points and a spacific point

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majd tahat
majd tahat 2018-6-2
编辑： KALYAN ACHARJYA 2018-6-3
Hello, i am looking for a way to find the distance between A and the (B,C)edge. for example, if i have 50 pixels on (B,C)edge then it should returen 50 distance value. (the main problem is in defining (B,C)edge without taking other boundaries like (A,B) or (A,C)).
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Cedric
Cedric 2018-6-2
编辑：Cedric 2018-6-2
Can you assume that the edge BC is always defined by the first black pixel (vertically, in the downward direction) after which all pixels are black? If so, a basic FIND will identify the edge (using the 'last' option), and computing distances from row/col indices (using differences with row/col of point A) is trivial.
KALYAN ACHARJYA
KALYAN ACHARJYA 2018-6-3
编辑：KALYAN ACHARJYA 2018-6-3
What you want exactly? The distance between A and B?? And Distance between A & B? Clarify the problem.

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