# Bresenham line drawing algorithm

Apr 14th, 2015
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A graphics program for drawing a line using Bresenham's line drawing algorithm. It draws a line at the specified coordinates(start point and end point). It also works with negative slope

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#include #include #include #include int main(void){ int gd = DETECT, gm; int i, x, xe, y, ye, dx, dy, p; initgraph(&gd, &gm, "C:\\turboc3\\bgi"); printf("Enter x0:\n"); scanf("%d",&x); printf("enter y0:\n"); scanf("%d",&y); printf("Enter xe:\n"); scanf("%d",&xe); printf("enter ye:\n"); scanf("%d",&ye); dx = abs(xe-x); dy = abs(ye-y); p = (2*dy)-dx; putpixel(x, y, WHITE); for(i=0;ix){x = x+1;}else{x = x-1;}if(p<0){putpixel(x, y, WHITE);p = p+(2*dy);}

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