tandronlyline

/*
Shamsuddin Ahmed
161-15-1027

Draw triangle and rectangle only using lines
*/


#include<windows.h>
#include <GL/glut.h>

void init(void)
{
    glClearColor(1.0, 1.0, 1.0, 0.0);   // Set display window colour to white

    glMatrixMode(GL_PROJECTION);        // Set projection parameters
    gluOrtho2D(0.0, 400.0, 0.0, 400.0);
}

void drawShapes(void)
{
    glClear(GL_COLOR_BUFFER_BIT);   // Clear display window

    //Set colour to black
    glColor3f(0.0, 0.0, 0.0);
    //Adjust the point size
    glPointSize(5.0);

    //Set colour to red
    glColor3f(1.0, 0.0, 0.0);

    // Draw an outlined triangle
    glBegin(GL_LINES);

        //Triangle Using Line
        glVertex2i(54.53, 269.1);
        glVertex2i(149.07, 269.1);

        glVertex2i(149.07, 269.1);
        glVertex2i(102.77, 355.92);

        glVertex2i(102.77, 355.92);
        glVertex2i(54.53, 269.1);
        //Triangle End

        //Rectangle Using Line

        glVertex2i(203.09, 236.3);
        glVertex2i(299.56, 236.3);

        glVertex2i(299.56, 236.3);
        glVertex2i(299.56, 338.56);

        glVertex2i(299.56, 338.56);
        glVertex2i(201.16,338.56);

        glVertex2i(201.16,338.56);
        glVertex2i(203.09, 236.3);

        //Rectangle Using Line




    glEnd();

    glFlush();  // Process all OpenGL routines
}

int main(int argc, char* argv[])
{
    glutInit(&argc, argv);                      // Initalise GLUT
    glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);  // Set display mode

    glutInitWindowPosition(50, 100);                // Set window position
    glutInitWindowSize(400, 300);                   // Set window size
    glutCreateWindow("An Example OpenGL Program");  // Create display window

    init();                         // Execute initialisation procedure
    glutDisplayFunc(drawShapes);        // Send graphics to display window
    glutMainLoop();                 // Display everything and wait

    return 0;
}