int main(){
Point P[5];
P[0].x = 50;
P[0].y = 50;
P[1].x = 100;
P[1].y = 100;
P[2].x = 150;
P[2].y = 50;
P[3].x = 140;
P[3].y = 150;
P[4].x = 60;
P[4].y = 150;
set_mode(VGA_256_COLOR_MODE);
line_bresenham(P[0],P[1],2);
line_bresenham(P[1],P[2],2);
line_bresenham(P[2],P[3],2);
line_bresenham(P[3],P[4],2);
line_bresenham(P[4],P[0],2);
scanline(P,5,100);
getch();
set_mode(TEXT_MODE);
return 0;
}
void line(struct point start, struct point end, struct color line_color, struct paint *painter)
{
/* dda */
// line_dda(start, end, line_color, painter);
/* mid point */
// line_midpoint(start, end, line_color, painter);
/* bresenham */
line_bresenham(start, end, line_color, painter);
}
void main(){
int color;
int clip1X, clip1Y, clip2X, clip2Y;
int end1X, end1Y, end2X, end2Y, retval;
srand(*my_clock);
set_mode(VGA_256_COLOR_MODE);
// color=rand()%NUM_COLORS;
color=175;
// membuat view (kotak)
line_bresenham(KIRI,ATAS,KANAN,ATAS,color);
line_bresenham(KANAN,ATAS,KANAN,BAWAH,color);
line_bresenham(KANAN,BAWAH,KIRI,BAWAH,color);
line_bresenham(KIRI,BAWAH,KIRI,ATAS,color);
// garis pemotong 1
clip1X = clip1Y = clip2X = clip2Y = 0;
end1X = 130; end1Y = 30; end2X = 150; end2Y = 150;
line_bresenham(end1X,end1Y,end2X,end2Y,color);
retval = clipLine(end1X,end1Y,end2X,end2Y,&clip1X,&clip1Y,&clip2X,&clip2Y);
if(retval) {
line_bresenham(clip1X,clip1Y,clip2X,clip2Y,color-99);
}
// garis pemotong 2
end1X = 50; end1Y = 90; end2X = 215; end2Y = 90;
line_bresenham(end1X,end1Y,end2X,end2Y,color);
retval = clipLine(end1X,end1Y,end2X,end2Y,&clip1X,&clip1Y,&clip2X,&clip2Y);
if(retval) {
line_bresenham(clip1X,clip1Y,clip2X,clip2Y,color-99);
}
// garis tak memotong
end1X = 200; end1Y = 15; end2X = 200; end2Y = 170;
line_bresenham(end1X,end1Y,end2X,end2Y,color);
retval = clipLine(end1X,end1Y,end2X,end2Y,&clip1X,&clip1Y,&clip2X,&clip2Y);
if(retval) {
line_bresenham(clip1X,clip1Y,clip2X,clip2Y,color-99);
}
// garis memotong di dalam (trivial accept)
end1X = KANAN; end1Y = ATAS; end2X = KIRI; end2Y = BAWAH;
line_bresenham(end1X,end1Y,end2X,end2Y,color);
retval = clipLine(end1X,end1Y,end2X,end2Y,&clip1X,&clip1Y,&clip2X,&clip2Y);
if(retval) {
line_bresenham(clip1X,clip1Y,clip2X,clip2Y,color-99);
}
sleep(2);
set_mode(TEXT_MODE);
return;
}