Arc coordinates

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How to determine the arc coordinates to built perfect circle

OpenFOAM Creating-curved-geometry-in-OpenFOAM 01-02 min 0-10 sec

__Answers:__

Since you already know the radius of the circle, you can determine its co-ordinates as: [r x cos(theta), r x sin(theta), 0)

By varying the value of theta, you can locate its different co-ordinates

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