Notes

#include<Windows.h>
#include<GLgl.h>
#include<GLglu.h>
#include<GLglut.h> //diger iki dosyanin icerigini barindirir

#include<iostream>
#include <fstream>
#include<string>
#include<sstream>
#include <math.h>

GLfloat red = 0.0, blue = 0.0, green = 0.0;

using namespace std;

#define KIRMIZI 1
#define YESIL 2
#define MAVI 3
#define PEMBE 4

void Cizgiler() {
GLfloat BaskentLogoKoordinatlar[4][8][2]
= {
{ { 0.0,280.0 },{ 138.907,145.885 },{ 98.5551,105.542 },{ 39.9941,164.0 },{ 0.0,0.0 },{ -39.9938,160.0 },{ -97.4877,108.5 },{ -136.482,147.5 } },
{ { 280.0,0.0 },{ 145.885,-138.907 },{ 105.542,-98.5551 },{ 164,-39.9941 },{ 0.0,0.0 },{ 160.0,39.9937 },{ 108.5,97.4877 },{ 147.5,136.482 } },
{ { 0.0,-280.0 },{ -138.907,-145.885 },{ -98.5551,-105.542 },{ -39.9941,-164.0 },{ 0.0,0.0 },{ 39.9937, -160.0 },{ 97.4876, -108.5 },{ 136.482, -147.5 } },
{ { -280.0,0.0 },{ -145.885,138.907 },{ -105.541,98.5551 },{ -164,39.9941 },{ 0.0,0.0 },{ -160.0,-39.9937 },{ -108.5,-97.4876 },{ -147.5,-136.482 } }
};
glColor3f(red, green, blue);
for (int j = 0; j < 4; j++)
{
glBegin(GL_POLYGON);
for (int i = 0; i<8; i++)
{
int a = i + (j * 8);
glVertex2fv(BaskentLogoKoordinatlar[j][i]);

}
glEnd();//Cizgi cizdirme komut blogu bitti
}
glFlush();//Bufferı bosaltir
}

void init() {

glMatrixMode(GL_PROJECTION);

glLoadIdentity(); //reset islemi

gluOrtho2D(-400, 400, -400, 400);

glColor3f(0.0, 0.0, 0.0); //siyah renkli cizim

//glLineWidth(3); //Cizgi kalinligi
}


void Renkler(int option) {
switch (option)
{
case KIRMIZI:
red = 1.0;
green = 0.0;
blue = 0.0;
break;

case YESIL:
red = 0.0;
green = 1.0;
blue = 0.0;
break;

case MAVI:
red = 0.0;
green = 0.0;
blue = 1.0;
break;

case PEMBE:
red = 1.0;
green = 0.0;
blue = 1.0;
break;

default:
break;
}
Cizgiler();
}

void createGLUTMenus()
{
glutCreateMenu(Renkler);
//menuye menu elemanlarını ekledim
glutAddMenuEntry("KIRMIZI BOYA", KIRMIZI);
glutAddMenuEntry("MAVİ BOYA", MAVI);
glutAddMenuEntry("YESİL BOYA", YESIL);
glutAddMenuEntry("PEMBE BOYA", PEMBE);
glutAttachMenu(GLUT_RIGHT_BUTTON); //Yaratılan menu sag fare tusuna atadık
}



int main(int argc, char **argv)
{
glutInit(&argc, argv); // mainden gelen parametreler ile initilization

glutInitDisplayMode(GLUT_SINGLE | GLUT_RGBA); //goruntuleme secenekleri

glutInitWindowPosition(100, 100);//cizim penceresinin sol ustten mesafesi

glutInitWindowSize(800, 800); //cizim penceresinin ekran boyutu

glutCreateWindow("BASKENT UNIVERSITESI LOGOSU - 2017 / ANKARA"); //pencere olusturma ve isim verme

init(); //Initialization icin

glClearColor(1.0, 1.0, 1.0, 1.0); //pencere icini beyaz ile doldur

glClear(GL_COLOR_BUFFER_BIT); //pencere icini temizlerken beyaz ile temizler

glutDisplayFunc(Cizgiler); //Yapilacak fonksiyon cagiriliyor
createGLUTMenus();

glutMainLoop(); //her seyi ekranda göster ve bekle

return 0;
}