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CalcNeedleAngle


Unit:SDL_meter
Class:TMeter
Declaration:function CalcNeedleAngle (value: double): double;

The method CalcNeedleAngle calculates the angle of the needle for a given value of the meter. The returned angle is in degrees; the vertical direction (downward) equals 0 degrees. The angle increases clockwise (see figure below). If value is less than MeterMinValue or greater than MeterMaxValue it is automatically limited to these boundaries.



Last Update: 2012-Oct-20