Created
November 29, 2016 04:07
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| private double convertTouchEventPointToAngle(float xPos, float yPos) { | |
| // transform touch coordinate into component coordinate | |
| float x = xPos - mTranslateX; | |
| float y = yPos - mTranslateY; | |
| x = (mClockwise) ? x : -x; | |
| double angle = Math.toDegrees(Math.atan2(y, x) + (Math.PI / 2)); | |
| angle = (angle < 0) ? (angle + 360) : angle; | |
| return angle; | |
| } |
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