Make black and white pixel image of a grid

Question

Mohsina Zafar 2017-5-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/342427-make-black-and-white-pixel-image-of-a-grid

回答： Walter Roberson 2017-5-29

I have this function which generates a 12x12 maze with lines as borders of the maze. I need to convert it into a monochromatic image of 25x25 with each black pixel being boundary and each white pixel being the available path.

As maze is generated randomly, I need to update the monochromatic image maze with the original maze.

Actual maze (randomly generated from code) is attached.

Kindly help me out in this regard.

function show_maze(row, col, rr, cc, ptr_left, ptr_up, ptr_right, ptr_down,h)
figure(h)
line([.5,col+.5],[.5,.5]) % draw top border
line([.5,col+.5],[row+.5,row+.5]) % draw bottom border
line([.5,.5],[1.5,row+.5]) % draw left border
line([col+.5,col+.5],[.5,row-.5])  % draw right border
for ii=1:length(ptr_right)
      if ptr_right(ii)>0 % right passage blocked
          line([cc(ii)+.5,cc(ii)+.5],[rr(ii)-.5,rr(ii)+.5]);
          hold on
      end
      if ptr_down(ii)>0 % down passage blocked
          line([cc(ii)-.5,cc(ii)+.5],[rr(ii)+.5,rr(ii)+.5]);
          hold on
      end
end
axis equal
axis([.5,col+.5,.5,row+.5])
axis off
set(gca,'YDir','reverse')
return