Theo/IEM2_BOUWMANS_TP1
Theo/IEM2_BOUWMANS_TP1
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[2.3👍] Coures affichées

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Fonctions déjà implémentées pour l'exo 2.4

On parle pas du bug 🤫
This commit is contained in:
Theo 2024-09-08 23:50:24 +02:00
parent 8976b8e75b
commit d2789fadfc
2 changed files with 52 additions and 19 deletions
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68
main.c
View File

@ -5,12 +5,14 @@
#include <GL/glut.h>
void afficher(void);
int initWindow(int, char**);
int initWindow(int, char**, void(*)(void));
void destroyWindow(int);
long getFileSize(FILE*);
void parseFile(char*, long);
bool charger(char*);
void printCourbeTerminal(void);
void ligne(int);
float map(float, float, float, float, float);
// Variables donneés
#define MAXC 20
@ -22,24 +24,53 @@ float valmax[MAXC];
int nc = 0;
void afficher(void)
float map(float smin, float smax, float val, float omin, float omax)
{
float percent = (val - smin) / (smax - smin);
//printf("v%f, p%f, min%f, max%f\n", val, percent, omin, omax);
return (omax-omin) * percent + omin;
}
void ligne(int index)
{
if(index >= nc)
{
printf("Courbe non-existante.");
return;
}
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0,1.0,-1.0,1.0,-1.0,1.0);
glClearColor(0.0,0.0,0.0,0.0);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0,1.0,1.0);
glBegin(GL_POLYGON);
glVertex2f(-0.7,-0.7);
glVertex2f(-0.7, 0.7);
glVertex2f( 0.7, 0.7);
glVertex2f( 0.7,-0.7);
glBegin(GL_LINE_STRIP);
unsigned int size = (unsigned int)courbe[index][0];
for(unsigned int i = 1; i < size; i++)
{
float pos_x = map(0, size, i-1, -1.0, 1.0);
float pos_y = map(valmin[index], valmax[index], courbe[index][i], -1.0, 1.0);
glVertex2f(pos_x, pos_y);
//printf("%d : {%f, %f}\n", i, pos_x, pos_y);
}
fflush(stdout);
glEnd();
}
void afficher(void)
{
glClearColor(0.0,0.0,0.0,0.0);
glClear(GL_COLOR_BUFFER_BIT);
ligne(0);
glFlush();
}
int initWindow(int argc, char* argv[])
int initWindow(int argc, char* argv[], void(*display)(void))
{
int vx1 = 0, vx2 = 400, vy1 = 0, vy2 = 400;
@ -50,7 +81,7 @@ int initWindow(int argc, char* argv[])
int window = glutCreateWindow("TP1");
glutDisplayFunc(afficher);
glutDisplayFunc(display);
return window;
}
@ -86,16 +117,17 @@ void parseFile(char* file, long size)
// printf(" ->\"%c\"", *pointeur);
int taille_tableau = atoi(pointeur);
courbe[line][0] = taille_tableau;
// printf(" ->\"%d\" \n", taille_tableau);
// On suppose que les nombres sont séparés par un espace
for(unsigned int i = 0; i < taille_tableau; i++)
for(unsigned int i = 1; i < taille_tableau; i++)
{
pointeur = strchr(pointeur, ' ') + 1;
float num = strtof(pointeur, 0);
courbe[line][i] = num;
if(i == 0)
if(i == 1)
{
valmin[line] = num;
valmax[line] = num;
@ -163,15 +195,15 @@ void printCourbeTerminal(void)
int main(int argc, char* argv[])
{
//int window = initWindow(argc, argv);
//glutMainLoop();
if(!charger("valeurs.txt"))
return EXIT_FAILURE;
//printCourbeTerminal();
//destroyWindow(window);
int window = initWindow(argc, argv, afficher);
glutMainLoop();
destroyWindow(window);
return EXIT_SUCCESS;
}

3
valeurs.txt
View File

@ -1,4 +1,5 @@
5
6
46 0.978147601 0.913545458 0.809016994 0.669130606 0.5 0.309016994 0.104528463 -0.104528463 -0.309016994 -0.5 -0.669130606 -0.809016994 -0.913545458 -0.978147601 -1 -0.978147601 -0.913545458 -0.809016994 -0.669130606 -0.5 -0.309016994 -0.104528463 0.104528463 0.309016994 0.5 0.669130606 0.809016994 0.913545458 0.978147601 1 0.978147601 0.913545458 0.809016994 0.669130606 0.5 0.309016994 0.104528463 -0.104528463 -0.309016994 -0.5 -0.669130606 -0.809016994 -0.913545458 -0.978147601 -1
5 1 2 3 4 5
6 21 543.3 75 34 76 89
1 234