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20 lines
774 B
C
20 lines
774 B
C
#ifndef GB_SCALINGFUNCTIONS_H
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#define GB_SCALINGFUNCTIONS_H
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//simple y = f(x) functions, used for a variety of purposes.
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//limit x into range [min_x..max_x], then scale linearly into [min_y..max_y]
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double scale_linear(double x, double min_x, double max_x, double min_y, double max_y);
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float scale_linear(float x, float min_x, float max_x, float min_y, float max_y);
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//limit x into range [min_x..max_x], then scale using a quadratic expression into [min_y..max_y]
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double scale_quadratic(double x, double min_x, double max_x, double min_y, double max_y);
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//limit x into range [min_x..max_x], then scale logarithmically into [min_y..max_y]
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double scale_logarithmically(double x, double min_x, double max_x, double min_y, double max_y);
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#endif // GB_SCALINGFUNCTIONS_H
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