#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <gl\glut.h>
#include <math.h>
void display(void){
glClearColor(1.0,1.0,1.0,0.0);
glMatrixMode(GL_PROJECTION);
gluOrtho2D(0.0,1000.0,0.0,1000.0);
}
void setPixel(GLint xCoordinate, GLint yCoordinate)
{
glBegin(GL_POINTS);
glVertex2i(xCoordinate,yCoordinate);
glEnd();
glFlush();
}
void lineBres(GLint x0, GLint y0, GLint xEnd, GLint yEnd){
GLint dx = (float)fabs((float) xEnd - x0);
GLint dy = (float)fabs((float) yEnd - y0);
GLint p = 2 * dy - dx;
GLint twoDy = 2 * dy;
GLint twoDyMinusDx = 2 * (dy-dx);
GLint x,y;
if (x0 > xEnd){
x = xEnd;
y = yEnd;
xEnd = x;
}else{
x = x0;
y = y0;
}
setPixel(x,y);
while(x<xEnd){
x++;
if(p<0)
p += twoDy;
else{
y++;
p += twoDyMinusDx;
}
setPixel(x,y);
}
}
void drawMyLine(void){
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0,0.0,1.0);
glPointSize(4.0);
GLint x0 = 100;
GLint y0 = 100;
GLint xEnd = 200;
GLint yEnd = 100;
lineBres(x0,y0,xEnd,yEnd);
glColor3f(0.98,0.625,0.12);
glPointSize(4.0);
GLint x2 = 100;
GLint y2 = 200;
GLint xEnd2 = 200;
GLint yEnd2 = 200;
lineBres(x2,y2,xEnd2,yEnd2);
glColor3f(0.0,1.0,0.0);
glPointSize(4.0);
GLint x3 = 100;
GLint y3 = 300;
GLint xEnd3 = 200;
GLint yEnd3 = 300;
lineBres(x3,y3,xEnd3,yEnd3);
glColor3f(0.98,0.625,0.12);
glPointSize(4.0);
GLint x4 = 300;
GLint y4 = 350;
GLint xEnd4 = 500;
GLint yEnd4 = 500;
lineBres(x4,y4,xEnd4,yEnd4);
glColor3f(0.1,0.0,0.0);
glPointSize(4.0);
GLint xw = 500;
GLint yw = 500;
GLint xEndw = 350;
GLint yEndw = 500;
lineBres(xw,yw,xEndw,yEndw);
glColor3f(0.60,0.40,0.12);
glPointSize(4.0);
GLint x5 = 300;
GLint y5 = 100;
GLint xEnd5 = 500;
GLint yEnd5 = 500;
lineBres(x5,y5,xEnd5,yEnd5);
glColor3f(0.60,0.40,0.12);
glPointSize(4.0);
GLint x6 = 600;
GLint y6 = 50;
GLint xEnd6 = 700;
GLint yEnd6 = 50;
lineBres(x6,y6,xEnd6,yEnd6);
glColor3f(0.60,0.40,0.12);
glPointSize(4.0);
GLint x7 = 600;
GLint y7 = 100;
GLint xEnd7 = 700;
GLint yEnd7 = 100;
lineBres(x7,y7,xEnd7,yEnd7);
glColor3f(0.60,0.40,0.12);
glPointSize(4.0);
GLint x8 = 600;
GLint y8 = 150;
GLint xEnd8 = 700;
GLint yEnd8 = 150;
lineBres(x8,y8,xEnd8,yEnd8);
glColor3f(0.60,0.40,0.12);
glPointSize(4.0);
GLint x9 = 600;
GLint y9 = 200;
GLint xEnd9 = 700;
GLint yEnd9 = 250;
lineBres(x9,y9,xEnd9,yEnd9);
glColor3f(1.0,0.0,1.0);
glPointSize(4.0);
GLint x10 = 600;
GLint y10 = 300;
GLint xEnd10 = 700;
GLint yEnd10 = 350;
lineBres(x10,y10,xEnd10,yEnd10);
glColor3f(0.0,1.0,0.0);
glPointSize(4.0);
GLint x11 = 600;
GLint y11 = 400;
GLint xEnd11 = 700;
GLint yEnd11 = 450;
lineBres(x11,y11,xEnd11,yEnd11);
}
int main(int argc, char** argv){
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(400,400);
glutInitWindowPosition(0,0);
glutCreateWindow("09018210 Agus Suroyo Garis");
display();
glutDisplayFunc(drawMyLine);
glutMainLoop();
return 0;
}
Kamis, 11 April 2013
Garis Algoritma Bresenham
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