source: Sophya/trunk/SophyaPI/PIGcont/contour.h@ 1842

Last change on this file since 1842 was 1829, checked in by perderos, 24 years ago

Creation du module PIGcont, Drawer de trace de contour / a partir
de l'adaptation du code de trace de contour de GNUplot, interfacage
avec la librairie PI .

Olivier Perdereau 19/12/2001

File size: 3.2 KB
RevLine 
[1829]1/*
2 * $Id: contour.h,v 1.1.1.1 2001-12-19 18:01:18 perderos Exp $
3 */
4
5/* GNUPLOT - contour.h */
6
7/*[
8 * Copyright 1999 Thomas Williams, Colin Kelley
9 *
10 * Permission to use, copy, and distribute this software and its
11 * documentation for any purpose with or without fee is hereby granted,
12 * provided that the above copyright notice appear in all copies and
13 * that both that copyright notice and this permission notice appear
14 * in supporting documentation.
15 *
16 * Permission to modify the software is granted, but not the right to
17 * distribute the complete modified source code. Modifications are to
18 * be distributed as patches to the released version. Permission to
19 * distribute binaries produced by compiling modified sources is granted,
20 * provided you
21 * 1. distribute the corresponding source modifications from the
22 * released version in the form of a patch file along with the binaries,
23 * 2. add special version identification to distinguish your version
24 * in addition to the base release version number,
25 * 3. provide your name and address as the primary contact for the
26 * support of your modified version, and
27 * 4. retain our contact information in regard to use of the base
28 * software.
29 * Permission to distribute the released version of the source code along
30 * with corresponding source modifications in the form of a patch file is
31 * granted with same provisions 2 through 4 for binary distributions.
32 *
33 * This software is provided "as is" without express or implied warranty
34 * to the extent permitted by applicable law.
35]*/
36
37#ifndef GNUPLOT_CONTOUR_H
38# define GNUPLOT_CONTOUR_H
39
40/* #if... / #include / #define collection: */
41
42/***
43#include "syscfg.h"
44***/
45#include "gp_types.h"
46
47#include "dynarray.h"
48#include "graph3d.h"
49#include "mymisc.h"
50#include <math.h>
51
52#define DEFAULT_CONTOUR_LEVELS 5
53#define DEFAULT_NUM_APPROX_PTS 5
54#define DEFAULT_CONTOUR_ORDER 4
55#define MAX_BSPLINE_ORDER 10
56
57/* Type definitions */
58
59typedef enum en_contour_kind {
60 /* Method of drawing the contour lines found */
61 CONTOUR_KIND_LINEAR,
62 CONTOUR_KIND_CUBIC_SPL,
63 CONTOUR_KIND_BSPLINE
64} t_contour_kind;
65
66typedef enum en_contour_levels_kind {
67 /* How contour levels are set */
68 LEVELS_AUTO, /* automatically selected */
69
70 LEVELS_INCREMENTAL, /* user specified start & incremnet */
71 LEVELS_DISCRETE, /* user specified discrete levels */
72 LEVELS_NUM /* User sets contour number - AJOUT OP */
73
74} t_contour_levels_kind;
75
76
77/* Used to allocate the tri-diag matrix. */
78typedef double tri_diag[3];
79
80/* Variables of contour.c needed by other modules: */
81
82extern char contour_format[];
83extern t_contour_kind contour_kind;
84extern t_contour_levels_kind contour_levels_kind;
85extern int contour_levels;
86extern int contour_order;
87extern int contour_pts;
88
89/* storage for z levels to draw contours at */
90extern dynarray dyn_contour_levels_list;
91/*#define contour_levels_list ((double *)dyn_contour_levels_list.v) */
92extern double * contour_levels_list;
93
94/* Prototypes of functions exported by contour.c */
95
96struct gnuplot_contours *contour(int num_isolines, struct iso_curve *iso_lines);
97int solve_tri_diag(tri_diag m[], double r[], double x[], int n);
98int Get_Num_Of_Z_Levels();
99
100#endif /* GNUPLOT_CONTOUR_H */
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