graphics-03
#include<GL/gl.h>
#include<Gl/glu.h>
#include<GL/glut.h>
#include<stdlib.h>
#include<string>
#include<math.h>
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0.298,0.616,0.3137);
glLineWidth(4);
glBegin(GL_LINES);
glVertex3f(30,60,0);
glVertex3f(50,80,0);
glColor3f(0,0,1);
glBegin(GL_LINES);
glVertex3f(50,80,0);
glVertex3f(70,60,0);
glColor3f(0,1,1);
glBegin(GL_LINES);
glVertex3f(30,60,0);
glVertex3f(70,60,0);
glColor3f(1,1,0);
glBegin(GL_LINES);
glVertex3f(30,60,0);
glVertex3f(30,20,0);
glColor3f(1,1,1);
glBegin(GL_LINES);
glVertex3f(30,20,0);
glVertex3f(70,20,0);
glColor3f(1,0,1);
glBegin(GL_LINES);
glVertex3f(70,60,0);
glVertex3f(70,20,0);
glColor3f(0,1,1);
glBegin(GL_LINES);
glVertex3f(45,20,0);
glVertex3f(45,40,0);
glColor3f(1,1,1);
glBegin(GL_LINES);
glVertex3f(55,20,0);
glVertex3f(55,40,0);
glColor3f(0,1,1);
glBegin(GL_LINES);
glVertex3f(45,40,0);
glVertex3f(55,40,0);
glEnd();
glColor3f(0.18,0.916,0.17);
glBegin(GL_POLYGON);
glVertex3f(30,60,0);
glVertex3f(50,80,0);
glVertex3f(70,60,0);
glEnd();
glColor3f(0,0,0);
glBegin(GL_POLYGON);
glVertex3f(30,60,0);
glVertex3f(70,60,0);
glVertex3f(30,20,0);
glVertex3f(70,20,0);
glVertex3f(70,60,0);
glEnd();
glColor3f(1,0,1);
glBegin(GL_POLYGON);
glVertex3f(45,20,0);
glVertex3f(45,40,0);
glVertex3f(55,20,0);
glVertex3f(55,40,0);
glVertex3f(45,40,0);
glVertex3f(55,40,0);
glEnd();
glutSwapBuffers();
}
void init(void)
{
glClearColor(0.23,0.8,0.95,0.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0,100.0,0.0,100.0,-1.0,1.0);
}
int main(int argc,char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
glutInitWindowSize(1000,600);
glutInitWindowPosition(50,10);
glutCreateWindow("Line and Triangle");
glutDisplayFunc(display);
init();
glutMainLoop();
return 0;
}
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