--- /dev/null
+/*
+ * $Id: pm3d.h,v 1.26 2006/06/15 15:42:33 sfeam Exp $
+ */
+
+/* GNUPLOT - pm3d.h */
+
+/*[
+ *
+ * Petr Mikulik, since December 1998
+ * Copyright: open source as much as possible
+ *
+ *
+ * What is here: #defines, global variables and declaration of routines for
+ * the pm3d plotting mode
+ *
+]*/
+
+
+/* avoid multiple includes */
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#ifndef TERM_HELP
+
+#ifndef PM3D_H
+#define PM3D_H
+
+#include "graph3d.h" /* struct surface_points */
+
+
+
+/****
+ Global options for pm3d algorithm (to be accessed by set / show)
+****/
+
+/* HBB NEW 20040311: setting this to 0 removes the pm3d option
+ * {transparent|solid} --- it's a duplicate of 'set grid front' */
+#ifndef PM3D_HAVE_SOLID
+# define PM3D_HAVE_SOLID 0
+#endif
+
+/*
+ where to plot pm3d: base or top (color map) or surface (color surface)
+ The string pm3d.where can be any combination of the #defines below.
+ For instance, "b" plot at botton only, "st" plots firstly surface, then top, etc.
+*/
+#define PM3D_AT_BASE 'b'
+#define PM3D_AT_TOP 't'
+#define PM3D_AT_SURFACE 's'
+
+/*
+ options for flushing scans (for pm3d.flush)
+ Note: new terminology compared to my pm3d program; in gnuplot it became
+ begin and right instead of left and right
+*/
+#define PM3D_FLUSH_BEGIN 'b'
+#define PM3D_FLUSH_END 'r'
+#define PM3D_FLUSH_CENTER 'c'
+
+/*
+ direction of taking the scans: forward = as the scans are stored in the
+ file; backward = opposite direction, i.e. like from the end of the file
+*/
+#define PM3D_SCANS_AUTOMATIC 'a'
+#define PM3D_SCANS_FORWARD 'f'
+#define PM3D_SCANS_BACKWARD 'b'
+#define PM3D_DEPTH 'd'
+
+/*
+ clipping method:
+ PM3D_CLIP_1IN: all 4 points of the quadrangle must be defined and at least
+ 1 point of the quadrangle must be in the x and y ranges
+ PM3D_CLIP_4IN: all 4 points of the quadrangle must be in the x and y ranges
+*/
+#define PM3D_CLIP_1IN '1'
+#define PM3D_CLIP_4IN '4'
+
+/*
+ is pm3d plotting style implicit or explicit?
+*/
+typedef enum {
+ PM3D_EXPLICIT = 0,
+ PM3D_IMPLICIT = 1
+} PM3D_IMPL_MODE;
+
+/*
+ from which corner take the color?
+*/
+typedef enum {
+ /* keep the following order of PM3D_WHICHCORNER_C1 .. _C4 */
+ PM3D_WHICHCORNER_C1 = 0, /* corner 1: first scan, first point */
+ PM3D_WHICHCORNER_C2 = 1, /* corner 2: first scan, second point */
+ PM3D_WHICHCORNER_C3 = 2, /* corner 3: second scan, first point */
+ PM3D_WHICHCORNER_C4 = 3, /* corner 4: second scan, second point */
+ /* now in any order */
+ PM3D_WHICHCORNER_MEAN = 4, /* average z-value from all 4 corners */
+ PM3D_WHICHCORNER_GEOMEAN = 5, /* geometrical mean of 4 corners */
+ PM3D_WHICHCORNER_MEDIAN = 6, /* median of 4 corners */
+ PM3D_WHICHCORNER_MIN = 7, /* minimum of 4 corners */
+ PM3D_WHICHCORNER_MAX = 8 /* maximum of 4 corners */
+} PM3D_WHICH_CORNERS2COLOR;
+
+/*
+ structure defining all properties of pm3d plotting mode
+ (except for the properties of the smooth color box, see color_box instead)
+*/
+typedef struct {
+ char where[7]; /* base, top, surface */
+ char flush; /* left, right, center */
+ char ftriangles; /* 0/1 (don't) draw flushing triangles */
+ char direction; /* forward, backward */
+ char clip; /* 1in, 4in */
+ int hidden3d_tag; /* if this is > 0, pm3d hidden lines are drawn with
+ this linestyle (which must naturally present). */
+#if PM3D_HAVE_SOLID
+ int solid; /* if this is != 0, border tics and labels might be
+ hidden by the surface */
+#endif
+ PM3D_IMPL_MODE implicit;
+ /* 1: [default] draw ALL surfaces with pm3d
+ 0: only surfaces specified with 'with pm3d' */
+ PM3D_WHICH_CORNERS2COLOR which_corner_color;
+ /* default: average color from all 4 points */
+ int interp_i; /* # of interpolation steps along scanline */
+ int interp_j; /* # of interpolation steps between scanlines */
+} pm3d_struct;
+
+
+extern pm3d_struct pm3d;
+
+
+/****
+ Declaration of routines
+****/
+
+int get_pm3d_at_option __PROTO((char *pm3d_where));
+void pm3d_depth_queue_clear __PROTO((void));
+void pm3d_depth_queue_flush __PROTO((void));
+void pm3d_reset __PROTO((void));
+void pm3d_draw_one __PROTO((struct surface_points* plots));
+double z2cb __PROTO((double z));
+double cb2gray __PROTO((double cb));
+void
+pm3d_rearrange_scan_array __PROTO((struct surface_points* this_plot,
+ struct iso_curve*** first_ptr, int* first_n, int* first_invert,
+ struct iso_curve*** second_ptr, int* second_n, int* second_invert));
+
+void set_plot_with_palette __PROTO((int plot_num, int plot_mode));
+
+TBOOLEAN is_plot_with_palette __PROTO((void));
+TBOOLEAN is_plot_with_colorbox __PROTO((void));
+
+#endif /* PM3D_H */
+
+#endif /* TERM_HELP */
+
+/* eof pm3d.h */
projects / gnuplot / blobdiff