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Find the direction of SVG path

原文 2018-12-05 13:23:00 0 1 javascript/ svg/ geometry

Is there any way to find out the direction of svg path elements ie clockwise or counterclockwise.

I have d path of semi circle.For example, path: "M-75 0A75 75 0 1 0 75 0Z"

Another example: M2,2 Q8,2 8,8z

Help me find out its direction or for any svg paths.Suggestions please.

1 answers

Look at the specification

A   75  75   0                  1                0         75  0
    rx  ry   x-axis-rotation   large-arc-flag sweep-flag    x  y

sweep flag 0 corresponds to CCW direction

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