Hello i have two points (Vector3) A and B. And have a radius r
How can i find a coords of point P in a circle by angle?
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\$\begingroup\$ add point you need to find and angle to picture \$\endgroup\$– nikoliazekterJul 13, 2015 at 11:32
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\$\begingroup\$ done. New point P on the picture with angle=130 \$\endgroup\$– GlebkaJul 13, 2015 at 11:46
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1 Answer
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Solution for 2D vectors:
Vector2 AB = B - A; // Vector from A to B
Vector2 A0 = r * AB.normalized; // Vector from A to 0°
Vector2 A90 = new Vector2(A0.y, -A0.x); // Vector from A to 90°
Vector2 P = A + Sin(alpha) * A90 + Cos(alpha) * A0; // Coordinate of arbitrary point on a circle
For arbitrary 3D vectors A and B in 3D space you need coordinates of at least one more point on the same plane (but not located on the A-B line).
answered Jul 13, 2015 at 13:50