GenralLineDrawingAlgorithm

GenralLineDrawingAlgorithm.cpp

#include <graphics.h>
#include <stdlib.h>

int main() {
	int gd = DETECT, gm;
	int x1,y1,x2,y2;
	initgraph(&gd,&gm,"DDA");
	x1 = 5, y1 = 5, x2 = 32, y2 = 54;
	float m = (y2 - y1) * 1.0 / (x2 - x1) * 1.0;
	float c = y2 - m * x2;
	for(int i = x1; i <= x2; i++) {
		int j = m * i + c;
		putpixel(i, j, WHITE);
	}
	delay(5000);
	line(x1, y1, x2, y2);
	getch();
}