Fractal demo (John Fay)
git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@92 7f0cb862-5218-0410-a997-914c9d46530a
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brianp
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@ -71,6 +71,12 @@ freeglut/freeglut/include/GL/glut.h svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/include/Makefile.am svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/install-sh svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/mkinstalldirs svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/progs/demos/Fractals/Fractals.dsp svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/progs/demos/Fractals/fractals.c svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/progs/demos/Fractals/fractals.dat svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/progs/demos/Fractals_random/Fractals_random.dsp svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/progs/demos/Fractals_random/fractals.dat svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/progs/demos/Fractals_random/fractals_random.c svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/stamp-h svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/stamp-h.in svn_keywords=Author+Date+Id+Revision
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freeglut/freeglut/tests/Makefile.am svn_keywords=Author+Date+Id+Revision
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101
freeglut/freeglut/progs/demos/Fractals/Fractals.dsp
Normal file
101
freeglut/freeglut/progs/demos/Fractals/Fractals.dsp
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@ -0,0 +1,101 @@
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# Microsoft Developer Studio Project File - Name="Fractals" - Package Owner=<4>
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# Microsoft Developer Studio Generated Build File, Format Version 6.00
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# ** DO NOT EDIT **
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CFG=Fractals - Win32 Debug
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CPP=cl.exe
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282
freeglut/freeglut/progs/demos/Fractals/fractals.c
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282
freeglut/freeglut/progs/demos/Fractals/fractals.c
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@ -0,0 +1,282 @@
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/* fractals.c */
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/*
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* Program to draw a fractal by Michael Barnsley's deterministic algorithm.
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* Algorithm:
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* (1) Define the affine transformations (of the form r(i+1) = A r(i) + b )
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* (2) Find the stationary point for each transformation
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* (3) To draw:
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* - If you are at the lowest level, draw lines connecting all the stationary points
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* - If not, call the draw function recursively with each affine transformation applied
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*/
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/*
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* User Commands:
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* +,- - increment/decrement number of levels
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* PgUp, PgDn - increase/decrease scaling
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* Arrow keys - translate viewing section
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* r - reset view
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* Escape - quit
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*/
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#include <GL/freeglut.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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typedef struct
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{
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double a00, a01, a10, a11 ; /* Transformation matrix */
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double b0, b1 ; /* Constant vector added on */
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double statx, staty ; /* Coordinates of the stationary point */
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}
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AffineTrans ;
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/* Number of levels to draw the fractal */
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static int num_levels = 0 ;
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/* The definition of the fractal */
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static int num_trans ;
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static AffineTrans *affine ;
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/* the window title */
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char window_title [ 80 ] ;
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/* The amount the view is translated and scaled */
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float xwin = 0.0, ywin = 0.0 ;
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float scale_factor = 1.0 ;
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static void draw_level ( int num, double m00, double m01, double m10, double m11, double n0, double n1 )
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{
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/* Draw a fractal transformed by "M", "N" as passed in */
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int i ;
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if ( num == 0 )
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{
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double x0 = m00 * affine[0].statx + m01 * affine[0].staty + n0 ;
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double y0 = m10 * affine[0].statx + m11 * affine[0].staty + n1 ;
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for ( i = 1; i < num_trans; i++ )
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{
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double x1 = m00 * affine[i].statx + m01 * affine[i].staty + n0 ;
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double y1 = m10 * affine[i].statx + m11 * affine[i].staty + n1 ;
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glVertex2f ( x0, y0 ) ;
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glVertex2f ( x1, y1 ) ;
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x0 = x1 ;
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y0 = y1 ;
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}
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}
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else
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{
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/* Map each affine transformation in the fractal through the one passed in and call "draw_level" */
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for ( i = 0; i < num_trans; i++ )
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{
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draw_level ( num-1, m00*affine[i].a00+m01*affine[i].a10, m00*affine[i].a01+m01*affine[i].a11,
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m10*affine[i].a00+m11*affine[i].a10, m10*affine[i].a01+m11*affine[i].a11,
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m00*affine[i].b0 +m01*affine[i].b1 + n0, m10*affine[i].b0 +m11*affine[i].b1 + n1 ) ;
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}
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}
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}
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static void
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Display(void)
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{
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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/* the curve */
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glPushMatrix();
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glScalef(2.5, 2.5, 2.5);
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glColor4f(0.0, 0.0, 0.0, 1.0);
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glBegin ( GL_LINES ) ;
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draw_level ( num_levels, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0 );
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glEnd () ;
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glPopMatrix();
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glutSwapBuffers();
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}
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static void
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Reshape(int width, int height)
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{
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float ar;
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glViewport(0, 0, width, height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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ar = (float) width / (float) height;
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glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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xwin = -1.0 ;
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ywin = 0.0 ;
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glTranslatef(xwin, ywin, -5.0);
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}
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static void
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Key(unsigned char key, int x, int y)
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{
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switch (key) {
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case 27: /* Escape key */
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glutLeaveMainLoop ();
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break;
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case '+' :
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++num_levels ;
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break ;
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case '-' :
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if (num_levels > 0)
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--num_levels;
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break ;
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case 'r' : case 'R' :
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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xwin = -1.0 ;
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ywin = 0.0 ;
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glTranslatef(xwin, ywin, -5.0);
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break ;
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}
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glutPostRedisplay();
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}
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static void
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Special(int key, int x, int y)
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{
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switch (key) {
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case GLUT_KEY_UP :
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glMatrixMode(GL_MODELVIEW);
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ywin += 0.1 * scale_factor ;
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glTranslatef(0.0, 0.1 * scale_factor, 0.0);
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break ;
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case GLUT_KEY_DOWN :
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glMatrixMode(GL_MODELVIEW);
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ywin -= 0.1 * scale_factor ;
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glTranslatef(0.0, -0.1 * scale_factor, 0.0);
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break ;
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case GLUT_KEY_LEFT :
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glMatrixMode(GL_MODELVIEW);
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xwin -= 0.1 * scale_factor ;
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glTranslatef(-0.1 * scale_factor, 0.0, 0.0);
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break ;
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case GLUT_KEY_RIGHT :
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glMatrixMode(GL_MODELVIEW);
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xwin += 0.1 * scale_factor ;
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glTranslatef(0.1 * scale_factor, 0.0, 0.0);
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break ;
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case GLUT_KEY_PAGE_UP :
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glMatrixMode(GL_MODELVIEW);
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glTranslatef ( -xwin, -ywin, 0.0 ) ;
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glScalef(1.25, 1.25, 1.25);
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glTranslatef ( xwin, ywin, 0.0 ) ;
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scale_factor *= 0.8 ;
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break ;
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case GLUT_KEY_PAGE_DOWN :
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glMatrixMode(GL_MODELVIEW);
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glTranslatef ( -xwin, -ywin, 0.0 ) ;
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glScalef(0.8, 0.8, 0.8);
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glTranslatef ( xwin, ywin, 0.0 ) ;
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scale_factor *= 1.25 ;
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break ;
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}
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glutPostRedisplay();
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}
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void readConfigFile ( char *fnme )
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{
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FILE *fptr = fopen ( fnme, "rt" ) ;
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int i ;
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char inputline [ 256 ] ;
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/* Read a header line */
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fgets ( inputline, 256, fptr ) ;
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/* Read a comment line */
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fgets ( inputline, 256, fptr ) ;
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/* Read the window title */
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fgets ( inputline, 256, fptr ) ;
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sscanf ( inputline, "%s", window_title ) ;
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/* Read a comment line */
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fgets ( inputline, 256, fptr ) ;
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/* Read the number of affine transformations */
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fgets ( inputline, 256, fptr ) ;
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sscanf ( inputline, "%d", &num_trans ) ;
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affine = (AffineTrans *)malloc ( num_trans * sizeof(AffineTrans) ) ;
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/* Read a comment line */
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fgets ( inputline, 256, fptr ) ;
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for ( i = 0; i < num_trans; i++ )
|
||||
{
|
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double m00, m01, m10, m11 ; /* Matrix "I" minus "A" */
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double determ ; /* Determinant of this matrix */
|
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/* Read an affine transformation definition */
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fgets ( inputline, 256, fptr ) ;
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sscanf ( inputline, "%lf %lf %lf %lf %lf %lf", &affine[i].a00, &affine[i].a01,
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&affine[i].a10, &affine[i].a11, &affine[i].b0, &affine[i].b1 ) ;
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||||
|
||||
/* Calculate the stationary point */
|
||||
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m00 = 1.0 - affine[i].a00 ;
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m01 = - affine[i].a01 ;
|
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m10 = - affine[i].a10 ;
|
||||
m11 = 1.0 - affine[i].a11 ;
|
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|
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determ = m00 * m11 - m01 * m10 ;
|
||||
|
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if ( fabs ( determ ) > 1.e-6 )
|
||||
{
|
||||
affine[i].statx = ( m11 * affine[i].b0 - m01 * affine[i].b1 ) / determ ;
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||||
affine[i].staty = ( -m10 * affine[i].b0 + m00 * affine[i].b1 ) / determ ;
|
||||
}
|
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else
|
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affine[i].statx = affine[i].staty = 0.0 ;
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}
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}
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int
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main(int argc, char *argv[])
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{
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int fractal_window ;
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if ( argc > 1 )
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readConfigFile ( argv[1] ) ;
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else
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readConfigFile ( "fractals.dat" ) ;
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glutInit(&argc, argv);
|
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glutInitWindowSize(500, 250);
|
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glutInitWindowPosition ( 140, 140 ) ;
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glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
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fractal_window = glutCreateWindow( window_title );
|
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glClearColor(1.0, 1.0, 1.0, 1.0);
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glutReshapeFunc(Reshape);
|
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glutKeyboardFunc(Key);
|
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glutSpecialFunc(Special);
|
||||
glutDisplayFunc(Display);
|
||||
|
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glutMainLoop();
|
||||
|
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printf ( "Back from the 'freeglut' main loop\n" ) ;
|
||||
|
||||
return 0; /* ANSI C requires main to return int. */
|
||||
}
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10
freeglut/freeglut/progs/demos/Fractals/fractals.dat
Normal file
10
freeglut/freeglut/progs/demos/Fractals/fractals.dat
Normal file
@ -0,0 +1,10 @@
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Koch Snowflake Fractal
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Title of window
|
||||
"Koch Snowflake"
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||||
Number of transformations
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||||
4
|
||||
A00 A01 A10 A11 B0 B1
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||||
0.33333 0.0 0.0 0.33333 0.0 0.0
|
||||
0.16667 -.28868 0.28868 0.16667 0.33333 0.0
|
||||
0.16667 0.28868 -.28868 0.16667 0.5 0.28868
|
||||
0.33333 0.0 0.0 0.33333 0.66667 0.0
|
||||
@ -0,0 +1,101 @@
|
||||
# Microsoft Developer Studio Project File - Name="Fractals_random" - Package Owner=<4>
|
||||
# Microsoft Developer Studio Generated Build File, Format Version 6.00
|
||||
# ** DO NOT EDIT **
|
||||
|
||||
# TARGTYPE "Win32 (x86) Console Application" 0x0103
|
||||
|
||||
CFG=Fractals_random - Win32 Debug
|
||||
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
|
||||
!MESSAGE use the Export Makefile command and run
|
||||
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|
||||
!MESSAGE NMAKE /f "Fractals_random.mak".
|
||||
!MESSAGE
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!MESSAGE You can specify a configuration when running NMAKE
|
||||
!MESSAGE by defining the macro CFG on the command line. For example:
|
||||
!MESSAGE
|
||||
!MESSAGE NMAKE /f "Fractals_random.mak" CFG="Fractals_random - Win32 Debug"
|
||||
!MESSAGE
|
||||
!MESSAGE Possible choices for configuration are:
|
||||
!MESSAGE
|
||||
!MESSAGE "Fractals_random - Win32 Release" (based on "Win32 (x86) Console Application")
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||||
!MESSAGE "Fractals_random - Win32 Debug" (based on "Win32 (x86) Console Application")
|
||||
!MESSAGE
|
||||
|
||||
# Begin Project
|
||||
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# PROP Scc_ProjName ""
|
||||
# PROP Scc_LocalPath ""
|
||||
CPP=cl.exe
|
||||
RSC=rc.exe
|
||||
|
||||
!IF "$(CFG)" == "Fractals_random - Win32 Release"
|
||||
|
||||
# PROP BASE Use_MFC 0
|
||||
# PROP BASE Use_Debug_Libraries 0
|
||||
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# PROP BASE Intermediate_Dir "Release"
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||||
# PROP BASE Target_Dir ""
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# ADD CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
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BSC32=bscmake.exe
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# ADD BASE BSC32 /nologo
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# ADD BSC32 /nologo
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LINK32=link.exe
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# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
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# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /I "..\..\..\include" /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /D "FREEGLUT_STATIC" /YX /FD /GZ /c
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# ADD BASE BSC32 /nologo
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SOURCE=.\fractals_random.c
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|
||||
10
freeglut/freeglut/progs/demos/Fractals_random/fractals.dat
Normal file
10
freeglut/freeglut/progs/demos/Fractals_random/fractals.dat
Normal file
@ -0,0 +1,10 @@
|
||||
Koch Snowflake Fractal
|
||||
Title of window
|
||||
"Koch Snowflake"
|
||||
Number of transformations
|
||||
4
|
||||
A00 A01 A10 A11 B0 B1
|
||||
0.33333 0.0 0.0 0.33333 0.0 0.0
|
||||
0.16667 -.28868 0.28868 0.16667 0.33333 0.0
|
||||
0.16667 0.28868 -.28868 0.16667 0.5 0.28868
|
||||
0.33333 0.0 0.0 0.33333 0.66667 0.0
|
||||
264
freeglut/freeglut/progs/demos/Fractals_random/fractals_random.c
Normal file
264
freeglut/freeglut/progs/demos/Fractals_random/fractals_random.c
Normal file
@ -0,0 +1,264 @@
|
||||
/* fractals_random.c */
|
||||
/* This demo shows a single-buffering "freeglut" example. */
|
||||
|
||||
/*
|
||||
* Program to draw a fractal by Michael Barnsley's stochastic algorithm.
|
||||
* Algorithm:
|
||||
* (1) Define the affine transformations (of the form r(i+1) = A r(i) + b )
|
||||
* (2) Find the stationary point for the first transformation
|
||||
* (3) To draw:
|
||||
* - Pick a random integer between 1 and the number of transformations (inclusive)
|
||||
* - Send the current point through the transformation to create the new current point
|
||||
* - Plot the new current point
|
||||
*/
|
||||
|
||||
/*
|
||||
* User Commands:
|
||||
* PgUp, PgDn - increase/decrease scaling
|
||||
* Arrow keys - translate viewing section
|
||||
* r - reset view
|
||||
* Escape - quit
|
||||
*/
|
||||
|
||||
#include <GL/freeglut.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <math.h>
|
||||
|
||||
typedef struct
|
||||
{
|
||||
double a00, a01, a10, a11 ; /* Transformation matrix */
|
||||
double b0, b1 ; /* Constant vector added on */
|
||||
double statx, staty ; /* Coordinates of the stationary point */
|
||||
}
|
||||
AffineTrans ;
|
||||
|
||||
/* Number of levels to draw the fractal */
|
||||
static int num_levels = 0 ;
|
||||
|
||||
/* The definition of the fractal */
|
||||
static int num_trans ;
|
||||
static AffineTrans *affine ;
|
||||
|
||||
/* the window title */
|
||||
char window_title [ 80 ] ;
|
||||
|
||||
/* The amount the view is translated */
|
||||
float xwin = 0.0, ywin = 0.0 ;
|
||||
float scale_factor = 1.0 ;
|
||||
|
||||
/* The current point */
|
||||
float current_x = 0.0, current_y = 0.0 ;
|
||||
|
||||
static void draw_level ( int num, double m00, double m01, double m10, double m11, double n0, double n1 )
|
||||
{
|
||||
/* Draw a fractal transformed by "M", "N" as passed in */
|
||||
int i ;
|
||||
|
||||
for ( i = 0; i < 10; i++ )
|
||||
{
|
||||
int random = rand () * num_trans / RAND_MAX ;
|
||||
float new_x = affine[random].a00 * current_x + affine[random].a01 * current_y + affine[random].b0 ;
|
||||
float new_y = affine[random].a10 * current_x + affine[random].a11 * current_y + affine[random].b1 ;
|
||||
|
||||
glVertex2f ( new_x, new_y ) ;
|
||||
current_x = new_x ;
|
||||
current_y = new_y ;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
Display(void)
|
||||
{
|
||||
/* the curve */
|
||||
glPushMatrix();
|
||||
glScalef(2.5, 2.5, 2.5);
|
||||
|
||||
glColor4f(0.0, 0.0, 0.0, 1.0);
|
||||
glBegin ( GL_POINTS ) ;
|
||||
draw_level ( num_levels, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0 );
|
||||
glEnd () ;
|
||||
|
||||
glPopMatrix();
|
||||
glutPostRedisplay(); /* Needed so that this function will be called again */
|
||||
}
|
||||
|
||||
static void
|
||||
Reshape(int width, int height)
|
||||
{
|
||||
float ar;
|
||||
glViewport(0, 0, width, height);
|
||||
glMatrixMode(GL_PROJECTION);
|
||||
glLoadIdentity();
|
||||
ar = (float) width / (float) height;
|
||||
glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glLoadIdentity();
|
||||
xwin = -1.0 ;
|
||||
ywin = 0.0 ;
|
||||
glTranslatef(xwin, ywin, -5.0);
|
||||
}
|
||||
|
||||
static void
|
||||
Key(unsigned char key, int x, int y)
|
||||
{
|
||||
switch (key) {
|
||||
case 27: /* Escape key */
|
||||
glutLeaveMainLoop ();
|
||||
break;
|
||||
|
||||
case 'r' : case 'R' :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glLoadIdentity();
|
||||
xwin = -1.0 ;
|
||||
ywin = 0.0 ;
|
||||
glTranslatef(xwin, ywin, -5.0);
|
||||
|
||||
break ;
|
||||
}
|
||||
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
glutPostRedisplay();
|
||||
}
|
||||
|
||||
static void
|
||||
Special(int key, int x, int y)
|
||||
{
|
||||
switch (key) {
|
||||
case GLUT_KEY_UP :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
ywin += 0.1 * scale_factor ;
|
||||
glTranslatef(0.0, 0.1 * scale_factor, 0.0);
|
||||
break ;
|
||||
|
||||
case GLUT_KEY_DOWN :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
ywin -= 0.1 * scale_factor ;
|
||||
glTranslatef(0.0, -0.1 * scale_factor, 0.0);
|
||||
break ;
|
||||
|
||||
case GLUT_KEY_LEFT :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
xwin -= 0.1 * scale_factor ;
|
||||
glTranslatef(-0.1 * scale_factor, 0.0, 0.0);
|
||||
break ;
|
||||
|
||||
case GLUT_KEY_RIGHT :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
xwin += 0.1 * scale_factor ;
|
||||
glTranslatef(0.1 * scale_factor, 0.0, 0.0);
|
||||
break ;
|
||||
|
||||
case GLUT_KEY_PAGE_UP :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glTranslatef ( -xwin, -ywin, 0.0 ) ;
|
||||
glScalef(1.25, 1.25, 1.25);
|
||||
glTranslatef ( xwin, ywin, 0.0 ) ;
|
||||
scale_factor *= 0.8 ;
|
||||
break ;
|
||||
|
||||
case GLUT_KEY_PAGE_DOWN :
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glTranslatef ( -xwin, -ywin, 0.0 ) ;
|
||||
glScalef(0.8, 0.8, 0.8);
|
||||
glTranslatef ( xwin, ywin, 0.0 ) ;
|
||||
scale_factor *= 1.25 ;
|
||||
break ;
|
||||
}
|
||||
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
glutPostRedisplay();
|
||||
}
|
||||
|
||||
void readConfigFile ( char *fnme )
|
||||
{
|
||||
FILE *fptr = fopen ( fnme, "rt" ) ;
|
||||
int i ;
|
||||
char inputline [ 256 ] ;
|
||||
|
||||
/* Read a header line */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
|
||||
/* Read a comment line */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
|
||||
/* Read the window title */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
sscanf ( inputline, "%s", window_title ) ;
|
||||
|
||||
/* Read a comment line */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
|
||||
/* Read the number of affine transformations */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
sscanf ( inputline, "%d", &num_trans ) ;
|
||||
|
||||
affine = (AffineTrans *)malloc ( num_trans * sizeof(AffineTrans) ) ;
|
||||
|
||||
/* Read a comment line */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
|
||||
for ( i = 0; i < num_trans; i++ )
|
||||
{
|
||||
double m00, m01, m10, m11 ; /* Matrix "I" minus "A" */
|
||||
double determ ; /* Determinant of this matrix */
|
||||
|
||||
/* Read an affine transformation definition */
|
||||
fgets ( inputline, 256, fptr ) ;
|
||||
sscanf ( inputline, "%lf %lf %lf %lf %lf %lf", &affine[i].a00, &affine[i].a01,
|
||||
&affine[i].a10, &affine[i].a11, &affine[i].b0, &affine[i].b1 ) ;
|
||||
|
||||
/* Calculate the stationary point */
|
||||
|
||||
m00 = 1.0 - affine[i].a00 ;
|
||||
m01 = - affine[i].a01 ;
|
||||
m10 = - affine[i].a10 ;
|
||||
m11 = 1.0 - affine[i].a11 ;
|
||||
|
||||
determ = m00 * m11 - m01 * m10 ;
|
||||
|
||||
if ( fabs ( determ ) > 1.e-6 )
|
||||
{
|
||||
affine[i].statx = ( m11 * affine[i].b0 - m01 * affine[i].b1 ) / determ ;
|
||||
affine[i].staty = ( -m10 * affine[i].b0 + m00 * affine[i].b1 ) / determ ;
|
||||
}
|
||||
else
|
||||
affine[i].statx = affine[i].staty = 0.0 ;
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
int fractal_window ;
|
||||
|
||||
if ( argc > 1 )
|
||||
readConfigFile ( argv[1] ) ;
|
||||
else
|
||||
readConfigFile ( "fractals.dat" ) ;
|
||||
|
||||
glutInit(&argc, argv);
|
||||
glutInitWindowSize(500, 250);
|
||||
glutInitWindowPosition ( 140, 140 ) ;
|
||||
|
||||
glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH);
|
||||
|
||||
fractal_window = glutCreateWindow( window_title );
|
||||
|
||||
glClearColor(1.0, 1.0, 1.0, 1.0);
|
||||
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
glutReshapeFunc(Reshape);
|
||||
glutKeyboardFunc(Key);
|
||||
glutSpecialFunc(Special);
|
||||
glutDisplayFunc(Display);
|
||||
|
||||
glutMainLoop();
|
||||
|
||||
printf ( "Back from the 'freeglut' main loop\n" ) ;
|
||||
|
||||
return 0; /* ANSI C requires main to return int. */
|
||||
}
|
||||
Reference in New Issue
Block a user