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37 lines
807 B
C++
37 lines
807 B
C++
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#pragma once
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#include "Range.hpp"
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namespace msdfgen {
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/// Linear transformation of signed distance values.
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class DistanceMapping {
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public:
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/// Explicitly designates value as distance delta rather than an absolute distance.
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class Delta {
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public:
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double value;
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inline explicit Delta(double distanceDelta) : value(distanceDelta) { }
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inline operator double() const { return value; }
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};
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static DistanceMapping inverse(Range range);
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DistanceMapping();
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DistanceMapping(Range range);
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double operator()(double d) const;
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double operator()(Delta d) const;
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DistanceMapping inverse() const;
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private:
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double scale;
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double translate;
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inline DistanceMapping(double scale, double translate) : scale(scale), translate(translate) { }
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};
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}
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