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Curl.cpp

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  • Forked from gmsh / gmsh
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    ColorTable.h 1.70 KiB
    // Gmsh - Copyright (C) 1997-2019 C. Geuzaine, J.-F. Remacle
    //
    // See the LICENSE.txt file for license information. Please report all
    // issues on https://gitlab.onelab.info/gmsh/gmsh/issues.
    
    #ifndef COLORTABLE_H
    #define COLORTABLE_H
    
    #include <stdio.h>
    #include <vector>
    #include <string>
    
    #define COLORTABLE_NBMAX_PARAM 10
    #define COLORTABLE_NBMAX_COLOR 1024
    
    typedef struct {
      unsigned int table[COLORTABLE_NBMAX_COLOR];
      int size; // must be >= 2
      int ipar[COLORTABLE_NBMAX_PARAM];
      double dpar[COLORTABLE_NBMAX_PARAM];
    } GmshColorTable;
    
    // COLORTABLE_MODE
    
    #define COLORTABLE_RGB 1
    #define COLORTABLE_HSV 2
    
    // integer parameters indices
    
    #define COLORTABLE_NUMBER 0 // predefined curve index
    #define COLORTABLE_INVERT 1 // invert (rbg<->255-rgb)
    #define COLORTABLE_SWAP 2 // swap (min<->max)
    #define COLORTABLE_ROTATION 3 // rotation
    #define COLORTABLE_MODE 4 // mode (rgb, hsv)
    
    // double parameters indices
    
    #define COLORTABLE_CURVATURE 0 // curvature
    #define COLORTABLE_BIAS 1 // offset
    #define COLORTABLE_ALPHA 2 // alpha channel value
    #define COLORTABLE_BETA 3 // beta coeff for brighten
    #define COLORTABLE_ALPHAPOW 4 // alpha channel power value
    
    void ColorTable_InitParam(int number, GmshColorTable *ct);
    void ColorTable_Recompute(GmshColorTable *ct);
    void ColorTable_Copy(GmshColorTable *ct);
    void ColorTable_Paste(GmshColorTable *ct);
    void ColorTable_Print(GmshColorTable *ct, FILE *fp,
                          std::vector<std::string> *vec = 0);
    int ColorTable_IsAlpha(GmshColorTable *ct);
    int ColorTable_Diff(GmshColorTable *ct1, GmshColorTable *ct2);
    
    void RGB_to_HSV(double R, double G, double B, double *H, double *S, double *V);
    void HSV_to_RGB(double H, double S, double V, double *R, double *G, double *B);
    
    #endif