DDA、Bresenham、MidBresenham画直线算法.rar_Bresenham_DDA_MidBresenham_c

function DDA(x0,y0,x1,y1,color) dx=x1-x0;dy=y1-y0; x=x0;y=y0; if(abs(dx)>abs(dy)) eps1=abs(dx); else eps1=abs(dy); end xIncre=dx/eps1; yIncre=dy/eps1; for k=0:eps1 scatter(round(x+0.5),round(y+0.5),color,'filled'); x=x+xIncre; y=y+yIncre; hold on end end % length =abs(x2-x1); % if abs(y2-y1)>length % length=abs(y2-y1); % end % dx=(x2-x1)/length; % dy=(y2-y1)/length; % x=x1+0.5*sign(dx); % y=y1+0.5*sign(dy); % hold on % for i=1:length % plot(round(x),round(y),'Color',color) % x=x+dx; % y=y+dy; % end % hold off % end