Difference between revisions of "Interpolation/Rescale/FloatFixed"

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(Created page with "{{LSL_Function |mode=user |func=fSclFix |p1_type=float|p1_name=from_a |p2_type=float|p2_name=from_b |p3_type=float|p3_name=to_a |p4_type=float|p4_name=to_b |p5_type=float|p5_name…")
 
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|mode=user
|mode=user
|func=fSclFix
|func=fSclFix
|p1_type=float|p1_name=from_a
|p1_type=float|p1_name=from_min|p1_desc=Minimum of range From
|p2_type=float|p2_name=from_b
|p2_type=float|p2_name=from_max|p2_desc=Maximum of range From
|p3_type=float|p3_name=to_a
|p3_type=float|p3_name=to_min|p3_desc=Minimum of range To
|p4_type=float|p4_name=to_b
|p4_type=float|p4_name=to_max|p4_desc=Maximum of range To
|p5_type=float|p5_name=from
|p5_type=float|p5_name=from|p5_desc=Value in range From
|return_type=float
|return_type=float
|return_value=returns clamped and rescaled value
|return_value=returns clamped and rescaled value

Revision as of 04:24, 14 September 2011

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

<lsl>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.</lsl>

Examples

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