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Program to plot Triangle Fan

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void trianglefan() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1,0,0); glBegin(GL_TRIANGLE_FAN); glVertex2i(-60,0); glVertex2i(-30,0); glVertex2i(-30,30); glColor3f(0,1,0); glVertex2i(0,0); glColor3f(0,0,1); glVertex2i(30,30); glEnd(); glFlush(); } void init() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-65,50,-50,50); } int main(int argc,char **argv) { glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("Triangle Fan"); init(); glutDisplayFunc(trianglefan); glutMainLoop(); }
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Program to plot Triangle Strip

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void trianglestrip() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1,0,0); glBegin(GL_TRIANGLE_STRIP); glVertex2i(-60,0); glVertex2i(-30,0); glVertex2i(-30,30); glColor3f(0,1,0); glVertex2i(0,0); glColor3f(0,0,1); glVertex2i(30,30); glEnd(); glFlush(); } void init() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-65,50,-50,50); } int main(int argc,char **argv) { glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("Triangle Strip"); init(); glutDisplayFunc(trianglestrip); glutMainLoop(); }
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Program to plot Triangle

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void triangle() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1,0,0); glBegin(GL_TRIANGLES); glVertex2i(-60,-30); glVertex2i(60,-30); glVertex2i(0,60); glEnd(); glFlush(); } void init() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-100,100,-100,100); } int main(int argc,char **argv) { glutInit(&argc,argv); glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("Triangle"); init(); glutDisplayFunc(triangle); glutMainLoop(); }
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Program to plot Quadrant strip

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void quadstrip() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1,0,0); glBegin(GL_QUAD_STRIP); glVertex2i(-60,0); glVertex2i(-40,50); glVertex2i(60,30); glColor3f(0,1,0); glVertex2i(60,-50); glVertex2f(45,61); glEnd(); glFlush(); } void init() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-65,65,-65,65); } int main(int argc,char **argv) { glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("QUAD STRIP"); init(); glutDisplayFunc(quadstrip); glutMainLoop(); }
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Program to plot a Quadrant

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void quads() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1,0,0); glBegin(GL_QUADS); glVertex2i(-60,0); glVertex2i(-40,50); glVertex2i(60,30); glVertex2i(60,-50); glEnd(); glFlush(); } void init() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-65,65,-65,65); } int main(int argc,char **argv) { glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("QUADS"); init(); glutDisplayFunc(quads); glutMainLoop(); }
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Program to plot a Line

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void line() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1.0,0,0);       //glLineWidth(10);                                            //to change width of line. "1" is normal glBegin(GL_LINES); glVertex2f(-0.9,-0.8); glVertex2f(0.8,0.9); glEnd(); glFlush(); } int main(int argc, char **argv) { glutInit(&argc,argv); glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("Line"); glutDisplayFunc(line); glutMainLoop(); }
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Program to plot a point

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#include<GL/glut.h> #include<Gl/glu.h> #include<Gl/gl.h> void point() { glClear(GL_COLOR_BUFFER_BIT);        //clear frame buffers bit glColor3f(1.0,0,0);                                       //color to point(red,green,blue); glPointSize(10);                                           // point size glBegin(GL_POINTS);                               glVertex2f(0.5,0);                                         //point location glVertex2f(0,0);                                     ...
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