Interpolation/Rescale/FloatFixed

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Summary

Function: float fSclFix( float from_min, float from_max, float to_min, float to_max, float from );

Rescales a value from one range to another range.

The value is also clamped between the range.
Returns a float

• float from_min Minimum of range From
• float from_max Maximum of range From
• float to_min Minimum of range To
• float to_max Maximum of range To
• float from Value in range From

Specification

float fSclFix(float from_min, float from_max, float to_min, float to_max, float from) {
    from = to_min + ((to_max-to_min) * ((from_min-from) / (from_min-from_max)));
    if(to_min < to_max) {
        if(from < to_min) from = to_min; else if(from > to_max) from = to_max;
    } else {
        if(from < to_max) from = to_max; else if(from > to_min) from = to_min;
    }
    return from;
}
// Released into public domain. By Nexii Malthus.

Examples

float value = fSclFix(0.0, 1.0, -5, 15, 0.6); // value == 7