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- /*--------------------------------------------------------------------
- * The GMT-system: @(#)gmt_colors.h 2.5 05 Jul 1995
- *
- * Copyright (c) 1991-1995 by P. Wessel and W. H. F. Smith
- * See README file for copying and redistribution conditions.
- *--------------------------------------------------------------------*/
-
- /* Here is the definition of the gmt_lut structure that is used in programs
- * that deals with coloring of grids.
- */
-
- struct GMT_LUT {
- double z_low, z_high;
- int rgb_low[3], rgb_high[3];
- int anot;
- BOOLEAN skip;
- };
-
- extern struct GMT_LUT *gmt_lut;
- extern int gmt_n_colors;
- extern BOOLEAN gmt_gray; /* TRUE if only grayshades are used */
- extern BOOLEAN gmt_b_and_w; /* TRUE if only black OR white is used */
- extern BOOLEAN gmt_continuous; /* TRUE if colors change continuously within slice */
-