Added GIFPlot example
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@219 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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Dave Beazley
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329
Examples/GIFPlot/Include/gifplot.h
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329
Examples/GIFPlot/Include/gifplot.h
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/* -----------------------------------------------------------------------------
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* gifplot.h
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*
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* Main header file for the GIFPlot library.
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*
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* Author(s) : David Beazley (beazley@cs.uchicago.edu)
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* Copyright (C) 1995-1996
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*
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* See the file LICENSE for information on usage and redistribution.
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* ----------------------------------------------------------------------------- */
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#include <stdio.h>
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#include <fcntl.h>
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#include <float.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#ifndef GIFPLOT_H
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/* Pixel is 8-bits */
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typedef unsigned char Pixel;
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typedef float Zvalue;
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/* ------------------------------------------------------------------------
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ColorMap
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Definition and methods for colormaps
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------------------------------------------------------------------------ */
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typedef struct ColorMap {
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unsigned char *cmap;
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char *name;
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} ColorMap;
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extern ColorMap *new_ColorMap(char *filename);
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extern void delete_ColorMap(ColorMap *c);
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extern void ColorMap_default(ColorMap *c);
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extern void ColorMap_assign(ColorMap *c, int index, int r, int g, int b);
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extern int ColorMap_getitem(ColorMap *c, int index);
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extern void ColorMap_setitem(ColorMap *c, int index, int value);
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extern int ColorMap_write(ColorMap *c, char *filename);
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/* Some default colors */
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#define BLACK 0
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#define WHITE 1
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#define RED 2
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#define GREEN 3
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#define BLUE 4
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#define YELLOW 5
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#define CYAN 6
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#define MAGENTA 7
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/*-------------------------------------------------------------------------
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FrameBuffer
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This structure defines a simple 8 bit framebuffer.
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------------------------------------------------------------------------- */
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typedef struct FrameBuffer {
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Pixel **pixels;
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Zvalue **zbuffer;
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unsigned int height;
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unsigned int width;
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int xmin; /* These are used for clipping */
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int ymin;
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int xmax;
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int ymax;
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} FrameBuffer;
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#define ZMIN 1e+36
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/* FrameBuffer Methods */
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extern FrameBuffer *new_FrameBuffer(unsigned int width, unsigned int height);
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extern void delete_FrameBuffer(FrameBuffer *frame);
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extern int FrameBuffer_resize(FrameBuffer *frame, int width, int height);
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extern void FrameBuffer_clear(FrameBuffer *frame, Pixel color);
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extern void FrameBuffer_plot(FrameBuffer *frame, int x, int y, Pixel color);
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extern void FrameBuffer_horizontal(FrameBuffer *frame, int xmin, int xmax, int y, Pixel color);
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extern void FrameBuffer_horizontalinterp(FrameBuffer *f, int xmin, int xmax, int y, Pixel c1, Pixel c2);
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extern void FrameBuffer_vertical(FrameBuffer *frame, int ymin, int ymax, int x, Pixel color);
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extern void FrameBuffer_box(FrameBuffer *frame, int x1, int y1, int x2, int y2, Pixel color);
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extern void FrameBuffer_solidbox(FrameBuffer *frame, int x1, int y1, int x2, int y2, Pixel color);
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extern void FrameBuffer_interpbox(FrameBuffer *f, int x1, int y1, int x2, int y2, Pixel c1, Pixel c2, Pixel c3, Pixel c4);
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extern void FrameBuffer_circle(FrameBuffer *frame, int x1, int y1, int radius, Pixel color);
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extern void FrameBuffer_solidcircle(FrameBuffer *frame, int x1, int y1, int radius, Pixel color);
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extern void FrameBuffer_line(FrameBuffer *frame, int x1, int y1, int x2, int y2, Pixel color);
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extern void FrameBuffer_setclip(FrameBuffer *frame, int xmin, int ymin, int xmax, int ymax);
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extern void FrameBuffer_noclip(FrameBuffer *frame);
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extern int FrameBuffer_makeGIF(FrameBuffer *frame, ColorMap *cmap, void *buffer, unsigned int maxsize);
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extern int FrameBuffer_writeGIF(FrameBuffer *f, ColorMap *c, char *filename);
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extern void FrameBuffer_zresize(FrameBuffer *f, int width, int height);
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extern void FrameBuffer_zclear(FrameBuffer *f);
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extern void FrameBuffer_solidtriangle(FrameBuffer *f, int x1, int y1, int x2, int y2, int x3, int y3, Pixel c);
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extern void FrameBuffer_interptriangle(FrameBuffer *f, int tx1, int ty1, Pixel c1,
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int tx2, int ty2, Pixel c2, int tx3, int ty3, Pixel c3);
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#define HORIZONTAL 1
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#define VERTICAL 2
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extern void FrameBuffer_drawchar(FrameBuffer *frame, int x, int y, int fgcolor, int bgcolor, char chr, int orientation);
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extern void FrameBuffer_drawstring(FrameBuffer *f, int x, int y, int fgcolor, int bgcolor, char *text, int orientation);
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/* ------------------------------------------------------------------------
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PixMap
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The equivalent of "bit-maps".
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------------------------------------------------------------------------ */
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typedef struct PixMap {
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int width;
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int height;
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int centerx;
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int centery;
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int *map;
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} PixMap;
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/* PIXMAP methods */
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extern PixMap *new_PixMap(int width, int height, int centerx, int centery);
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extern void delete_PixMap(PixMap *pm);
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extern void PixMap_set(PixMap *pm, int x, int y, int pix);
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extern void FrameBuffer_drawpixmap(FrameBuffer *f, PixMap *pm, int x, int y, int fgcolor, int bgcolor);
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#define TRANSPARENT 0
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#define FOREGROUND 1
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#define BACKGROUND 2
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/* ------------------------------------------------------------------------
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Plot2D
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Definition and methods for 2D plots.
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------------------------------------------------------------------------ */
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typedef struct Plot2D {
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FrameBuffer *frame; /* what frame buffer are we using */
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int view_xmin; /* Minimum coordinates of view region */
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int view_ymin;
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int view_xmax; /* Maximum coordinates of view region */
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int view_ymax;
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double xmin; /* Minimum coordinates of plot region */
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double ymin;
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double xmax; /* Maximum coordinates of plot region */
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double ymax;
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int xscale; /* Type of scaling (LINEAR, LOG, etc..) */
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int yscale;
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double dx; /* Private scaling parameters */
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double dy;
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} Plot2D;
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/* 2D Plot methods */
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extern Plot2D *new_Plot2D(FrameBuffer *frame,double xmin,double ymin, double xmax, double ymax);
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extern void delete_Plot2D(Plot2D *p2);
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extern Plot2D *Plot2D_copy(Plot2D *p2);
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extern void Plot2D_clear(Plot2D *p2, Pixel c);
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extern void Plot2D_setview(Plot2D *p2, int vxmin, int vymin, int vxmax, int vymax);
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extern void Plot2D_setrange(Plot2D *p2, double xmin, double ymin, double xmax, double ymax);
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extern void Plot2D_setscale(Plot2D *p2, int xscale, int yscale);
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extern void Plot2D_plot(Plot2D *p2, double x, double y, Pixel color);
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extern void Plot2D_box(Plot2D *p2, double x1, double y1, double x2, double y2, Pixel color);
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extern void Plot2D_solidbox(Plot2D *p2, double x1, double y1,double x2, double y2, Pixel color);
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extern void Plot2D_interpbox(Plot2D *p2, double x1, double y1, double x2, double y2, Pixel c1, Pixel c2, Pixel c3, Pixel c4);
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extern void Plot2D_circle(Plot2D *p2, double x, double y, double radius, Pixel color);
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extern void Plot2D_solidcircle(Plot2D *p2, double x, double y, double radius, Pixel color);
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extern void Plot2D_line(Plot2D *p2, double x1, double y1, double x2, double y2, Pixel color);
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extern void Plot2D_start(Plot2D *p2);
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extern void Plot2D_drawpixmap(Plot2D *p2, PixMap *pm, double x, double y, Pixel color, Pixel bgcolor);
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extern void Plot2D_xaxis(Plot2D *p2, double x, double y, double xtick, int ticklength, Pixel c);
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extern void Plot2D_yaxis(Plot2D *p2, double x, double y, double ytick, int ticklength, Pixel c);
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extern void Plot2D_triangle(Plot2D *p2, double x1, double y1, double x2, double y2, double x3, double y3, Pixel c);
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extern void Plot2D_solidtriangle(Plot2D *p2, double x1, double y1, double x2, double y2, double x3, double y3, Pixel c);
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extern void Plot2D_interptriangle(Plot2D *p2, double x1, double y1, Pixel c1,
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double x2, double y2, Pixel c2,
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double x3, double y3, Pixel c3);
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#define LINEAR 10
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#define LOG 11
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/* -----------------------------------------------------------------------
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Matrix
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Operations on 4x4 transformation matrices and vectors.
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Matrices are represented as a double array of 16 elements
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----------------------------------------------------------------------- */
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typedef double *Matrix;
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typedef struct GL_Vector {
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double x;
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double y;
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double z;
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double w;
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} GL_Vector;
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extern Matrix new_Matrix();
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extern void delete_Matrix(Matrix a);
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extern Matrix Matrix_copy(Matrix a);
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extern void Matrix_multiply(Matrix a, Matrix b, Matrix c);
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extern void Matrix_identity(Matrix a);
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extern void Matrix_zero(Matrix a);
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extern void Matrix_transpose(Matrix a, Matrix result);
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extern void Matrix_invert(Matrix a, Matrix inva);
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extern void Matrix_transform(Matrix a, GL_Vector *r, GL_Vector *t);
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extern void Matrix_transform4(Matrix a, double rx, double ry, double rz,
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double rw, GL_Vector *t);
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extern void Matrix_print(Matrix a);
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extern void Matrix_translate(Matrix a, double tx, double ty, double tz);
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extern void Matrix_rotatex(Matrix a, double deg);
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extern void Matrix_rotatey(Matrix a, double deg);
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extern void Matrix_rotatez(Matrix a, double deg);
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/* -----------------------------------------------------------------------
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Plot3D
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Data Structure for 3-D plots
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------------------------------------------------------------------------ */
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typedef struct Plot3D {
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FrameBuffer *frame; /* Frame buffer being used */
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int view_xmin; /* Viewing region */
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int view_ymin;
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int view_xmax;
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int view_ymax;
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double xmin; /* Bounding box */
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double ymin;
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double zmin;
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double xmax;
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double ymax;
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double zmax;
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double xcenter; /* Center point */
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double ycenter;
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double zcenter;
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double fovy; /* Field of view */
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double aspect; /* Aspect ratio */
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double znear; /* near "clipping" plane */
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double zfar; /* far "clipping" plane */
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Matrix center_mat; /* Matrix used for centering the model */
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Matrix model_mat; /* Model rotation matrix */
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Matrix view_mat; /* Viewing matrix */
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Matrix fullmodel_mat; /* Full model matrix. Used by sphere plot */
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Matrix trans_mat; /* Total transformation matrix */
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double lookatz; /* Where is the z-lookat point */
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double xshift; /* Used for translation and stuff */
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double yshift;
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double zoom;
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int width;
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int height;
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int pers_mode; /* Perspective mode (private) */
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double ortho_left,ortho_right,ortho_bottom,ortho_top;
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} Plot3D;
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extern Plot3D *new_Plot3D(FrameBuffer *frame, double xmin, double ymin, double zmin,
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double xmax, double ymax, double zmax);
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extern void delete_Plot3D(Plot3D *p3);
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extern Plot3D *Plot3D_copy(Plot3D *p3);
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extern void Plot3D_clear(Plot3D *p3, Pixel Color);
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extern void Plot3D_perspective(Plot3D *p3, double fovy, double znear, double zfar);
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extern void Plot3D_ortho(Plot3D *p3, double left, double right, double top, double bottom);
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extern void Plot3D_lookat(Plot3D *p3, double z);
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extern void Plot3D_autoperspective(Plot3D *p3, double fovy);
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extern void Plot3D_autoortho(Plot3D *p3);
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extern void Plot3D_rotx(Plot3D *p3, double deg);
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extern void Plot3D_roty(Plot3D *p3, double deg);
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extern void Plot3D_rotz(Plot3D *p3, double deg);
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extern void Plot3D_rotl(Plot3D *p3, double deg);
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extern void Plot3D_rotr(Plot3D *p3, double deg);
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extern void Plot3D_rotd(Plot3D *p3, double deg);
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extern void Plot3D_rotu(Plot3D *p3, double deg);
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extern void Plot3D_rotc(Plot3D *p3, double deg);
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extern void Plot3D_zoom(Plot3D *p3, double percent);
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extern void Plot3D_left(Plot3D *p3, double percent);
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extern void Plot3D_right(Plot3D *p3, double percent);
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extern void Plot3D_down(Plot3D *p3, double percent);
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extern void Plot3D_up(Plot3D *p3, double percent);
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extern void Plot3D_center(Plot3D *p3, double cx, double cy);
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extern void Plot3D_plot(Plot3D *p3, double x, double y, double z, Pixel Color);
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extern void Plot3D_setview(Plot3D *p3, int vxmin, int vymin, int vxmax, int vymax);
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extern void Plot3D_start(Plot3D *p3);
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extern void Plot3D_line(Plot3D *p3, double x1, double y1, double z1,
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double x2, double y2, double z2, Pixel color);
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extern void Plot3D_triangle(Plot3D *p3, double x1, double y1, double z1,
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double x2, double y2, double z2,
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double x3, double y3, double z3, Pixel color);
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extern void Plot3D_solidtriangle(Plot3D *p3, double x1, double y1, double z1,
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double x2, double y2, double z2,
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double x3, double y3, double z3, Pixel color);
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extern void Plot3D_interptriangle(Plot3D *p3,
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double x1, double y1, double z1, Pixel c1,
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double x2, double y2, double z2, Pixel c2,
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double x3, double y3, double z3, Pixel c3);
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extern void Plot3D_quad(Plot3D *p3, double x1, double y1, double z1,
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double x2, double y2, double z2,
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double x3, double y3, double z3,
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double x4, double y4, double z4,
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Pixel color);
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extern void Plot3D_solidquad(Plot3D *p3, double x1, double y1, double z1,
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double x2, double y2, double z2,
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double x3, double y3, double z3,
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double x4, double y4, double z4,
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Pixel color);
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extern void Plot3D_interpquad(Plot3D *p3, double x1, double y1, double z1, Pixel c1,
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double x2, double y2, double z2, Pixel c2,
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double x3, double y3, double z3, Pixel c3,
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double x4, double y4, double z4, Pixel c4);
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extern void Plot3D_solidsphere(Plot3D *p3, double x, double y, double z, double radius,Pixel c);
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extern void Plot3D_outlinesphere(Plot3D *p3, double x, double y, double z, double radius,Pixel c, Pixel bc);
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extern PixMap PixMap_SQUARE;
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extern PixMap PixMap_TRIANGLE;
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extern PixMap PixMap_CROSS;
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#endif
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#define GIFPLOT_H
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