TUGAS GRAFKOM Q 4

PERSEGI 4 


keterangan : 

pakek openGL microsoft visual c++ 2010 express.


source code


#include <Windows.h>
#include <math.h>
#include <gl/glut.h>

void display(){
glColor3f(1.0,1.0,1.0);

//bentuk setengah oval asli
glPushMatrix();
glTranslated(-90,0,0);
glLineWidth(5);
glBegin(GL_POLYGON);
for(float theta=0; theta<=180; theta++){
GLfloat radt = (theta/180)*(3.14);
glVertex2f(radt*50, sin(radt)*100+200);
}
glEnd();
glPopMatrix();

//bentuk setengal oval, diputar 90 derajat ke kiri
glPushMatrix();
glRotated(90,0,0,1);
glTranslated(45,-110,0);
glLineWidth(5);
glBegin(GL_POLYGON);
for(float theta=0; theta<=180; theta++){
GLfloat radt = (theta/180)*(3.14);
glVertex2f(radt*50, sin(radt)*100+200);
}
glEnd();
glPopMatrix();

//bentuk setengal oval, diputar 180 derajat ke kiri
glPushMatrix();
glRotated(180,0,0,1);
glTranslated(-68,-246,0);
glLineWidth(5);
glBegin(GL_POLYGON);
for(float theta=0; theta<=180; theta++){
GLfloat radt = (theta/180)*(3.14);
glVertex2f(radt*50, sin(radt)*100+200);
}
glEnd();
glPopMatrix();

//bentuk setengal oval, diputar 270 derajat ke kiri
glPushMatrix();
glRotated(270,0,0,1);
glTranslated(-200,-133,0);
glLineWidth(5);
glBegin(GL_POLYGON);
for(float theta=0; theta<=180; theta++){
GLfloat radt = (theta/180)*(3.14);
glVertex2f(radt*50, sin(radt)*100+200);
}
glEnd();
glPopMatrix();

//bentuk persegi untuk mengisi bagian tengah
glColor3f(0.0,0.0,1.0);
glPopMatrix();
glTranslated(-90,40,0);
glBegin(GL_POLYGON);
glVertex2f(0,0);
glVertex2f(0,160);
glVertex2f(160,160);
glVertex2f(160,0);
glEnd();
glPushMatrix();

glFlush();
}

void init(){
GLfloat w=1024, h=600;
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT);
glViewport(0,0,(GLsizei) w, (GLsizei) h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(-500,w,-300,h);
glMatrixMode(GL_MODELVIEW);
}

void FnKey (unsigned char key, int x, int y) {
if (key==27){
exit(1);
}
}

int main(int argc, char** argv){
FreeConsole();
glutInit(&argc, argv);
glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);

glutInitWindowSize (768, 450);
glutInitWindowPosition (100, 100);

glutCreateWindow ("Create Circle");

init ();
glutKeyboardFunc(FnKey);
glutDisplayFunc(display);
glutMainLoop();
return 0;
}