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- #include <iostream>
- #include <Windows.h>
- #include <GL/glut.h>
- using namespace std;
- typedef struct { float x,y; } titik_f;
- void drawPoly (titik_f t[], int jmlKoordinat, bool closedLoop) {
- int i;
- (closedLoop) ? glBegin(GL_LINE_LOOP) : glBegin(GL_LINE_STRIP);
- for (i=0;i<jmlKoordinat;i++) {
- glVertex2f(t[i].x, t[i].y);
- }
- glEnd(); glFlush();
- }
- void nggambar() {
- static int tick=0;
- titik_f P[360];
- double srad, r;
- for(int s=0;s<360;s++) {
- srad=(s*tick)*3.14/180;
- r=100*sin(5*srad);
- P[s].x=(float)(r*cos(srad));
- P[s].y=(float)(r*sin(srad));
- }
- drawPoly(P, 360, true);
- tick++; Sleep(200);
- }
- void tampil() {
- glClear(GL_COLOR_BUFFER_BIT);
- nggambar();
- glutSwapBuffers();
- }
- int main(int argc, char** argv)
- {
- glutInit(&argc, argv);
- glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
- glutInitWindowPosition(100,100);
- glutInitWindowSize(640,480);
- glutCreateWindow("Pemrograman Grafik RPL 2015");
- // glClearColor(1.0,1.0,1.0,0);
- gluOrtho2D(-100.,100.,-100.,100.);
- glutIdleFunc(tampil);
- glutDisplayFunc(tampil);
- glutMainLoop();
- return 0;
- }
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