DDA Line Drawing Algorithm

DDA Line Drawing Algorithm implementation on MFC,

Code:

void DrawByDDA(HDC hdc,int xs,int ys,int xe,int ye,COLORREF color)
{
int dx=xe-xs;
int dy=ye-ys;
SetPixel(hdc,xs,ys,color);
if(abs(dx)>=abs(dy))
{
int x=xs,xinc= dx>0?1:-1;
double y=ys,yinc=(double)dy/dx*xinc;
while(x!=xe)
{
x+=xinc;
y+=yinc;
SetPixel(hdc,x,round(y),color);
}
}
 
else
{
int y=ys,yinc= dy>0?1:-1;
double x=xs,xinc=(double)dx/dy*yinc;
while(y!=ye)
{
x+=xinc;
y+=yinc;
SetPixel(hdc,round(x),y,color);
}
}
} 

_________________
M. S. Rakha, Ph.D.
Queen's University
Canada

Author: DrRakha
Mastermind

Posts: 2715
Have thanks: 74 time

Page 1 of 1

[ 1 post ]

Related Posts to : DDA Line Drawing Algorithm
Bresenham (midpoint) algorithm (integer DDA) drawing line -
Line Midpoint algorithm (J2ME) -
Circle direct drawing algorithm -
Circle drawing using Polar based algorithm with C++ -
Reading a File Line by Line in php -
Line Translation 2D -
Line Rotation 2D -
start a new line in html -
Line Styles in java -
getting a full line input -

Topic Tags

C++ Graphics

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
All copyrights reserved to codemiles.com 2007-2011
mileX v1.0 designed by codemiles team
Codemiles.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com