The R Project SVN R

 * Version 15: For R 4.2.0

 *             Added more graphical definitions

 *             - groups

 *             - paths

#define R_GE_group       15

    /* Is a device appending a path ? */

    Rboolean appending;

/* Composition operators */

/* Must match order in ../library/grid/R/group.R */

/* Porter-Duff */

#define R_GE_compositeClear 1

#define R_GE_compositeSource 2

#define R_GE_compositeOver 3

#define R_GE_compositeIn 4

#define R_GE_compositeOut 5

#define R_GE_compositeAtop 6

#define R_GE_compositeDest 7

#define R_GE_compositeDestOver 8

#define R_GE_compositeDestIn 9

#define R_GE_compositeDestOut 10

#define R_GE_compositeDestAtop 11

#define R_GE_compositeXor 12

/* Additional Porter-Duff */

#define R_GE_compositeAdd 13

#define R_GE_compositeSaturate 14

/* PDF Blend Modes */

#define R_GE_compositeMultiply 15

#define R_GE_compositeScreen 16

#define R_GE_compositeOverlay 17

#define R_GE_compositeDarken 18

#define R_GE_compositeLighten 19

#define R_GE_compositeColorDodge 20

#define R_GE_compositeColorBurn 21

#define R_GE_compositeHardLight 22

#define R_GE_compositeSoftLight 23

#define R_GE_compositeDifference 24

#define R_GE_compositeExclusion 25

/* Path rules */

/* Must match order in ../library/grid/R/path.R */

#define R_GE_nonZeroWindingRule 1

#define R_GE_evenOddRule        2

int R_GE_clipPathFillRule(SEXP path);

void GEStroke(SEXP path, const pGEcontext gc, pGEDevDesc dd);

void GEFill(SEXP path, int rule, const pGEcontext gc, pGEDevDesc dd);

void GEFillStroke(SEXP path, int rule, const pGEcontext gc, pGEDevDesc dd);