Files
godot/thirdparty/msdfgen/core/DistanceMapping.cpp
noahbackus 9d30169a8d
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initial commit, 4.5 stable
2025-09-16 20:46:46 -04:00

28 lines
701 B
C++

#include "DistanceMapping.h"
namespace msdfgen {
DistanceMapping DistanceMapping::inverse(Range range) {
double rangeWidth = range.upper-range.lower;
return DistanceMapping(rangeWidth, range.lower/(rangeWidth ? rangeWidth : 1));
}
DistanceMapping::DistanceMapping() : scale(1), translate(0) { }
DistanceMapping::DistanceMapping(Range range) : scale(1/(range.upper-range.lower)), translate(-range.lower) { }
double DistanceMapping::operator()(double d) const {
return scale*(d+translate);
}
double DistanceMapping::operator()(Delta d) const {
return scale*d.value;
}
DistanceMapping DistanceMapping::inverse() const {
return DistanceMapping(1/scale, -scale*translate);
}
}