Rotating a plot about a center of origin

Hi everybody,

I'm trying to rotate an entire plot that I have about a specific origin.

Here is my code

x = 50; 
y = 50;

figure     

plot( [0:100; 0:100] , [0:100; 0:100] , 'k' )           

hold on                                       

      fill([0 1 1 0]+(x+1) , [0 0 1 1]+(y+3), 'blue')          
      fill([0 1 1 0]+(x+2) , [0 0 1 1]+(y+3), 'blue') 

      fill([0 1 1 0]+(x+1) , [0 0 1 1]+(50-2), 'blue')          
      fill([0 1 1 0]+(x+2) , [0 0 1 1]+(50-2), 'blue')         

      fill([0 1 1 0]+ (x+3) , [0 0 1 1]+(y), 'blue')          
      fill([0 1 1 0]+ (x+3) , [0 0 1 1]+ (y+1), 'blue')          

      fill([0 1 1 0]+(x) , [0 0 1 1]+(y), 'red') 
      fill([0 1 1 0]+(x+1) , [0 0 1 1]+(y), 'red') 
      fill([0 1 1 0]+(x) , [0 0 1 1]+(y+1), 'red') 
      fill([0 1 1 0]+(x+1) , [0 0 1 1]+(y+1), 'red') 

      fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y+3), 'red') 
      fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y+3), 'red') 
      fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y+3), 'red') 

          fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y-2), 'red') 
          fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y-2), 'red') 
          fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y-2), 'red') 
          fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y+3), 'red') 
          fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y+3), 'red') 
          fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y+3), 'red') 

           fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y), 'black') 
          fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y), 'black') 
           fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y), 'black') 
          fill([0 1 1 0]+(x+2) , [0 0 1 1]+(y), 'black') 
          fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y+1), 'black') 
          fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y+1), 'black')
          fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y+1), 'black') 
          fill([0 1 1 0]+(x+2) , [0 0 1 1]+(y+1), 'black')
          fill([0 1 1 0]+(x+2) , [0 0 1 1]+(y+1), 'black') 
          fill([0 1 1 0]+(x) , [0 0 1 1]+(y-1), 'black') 
          fill([0 1 1 0]+(x+1) , [0 0 1 1]+(y+2), 'black') 
          fill([0 1 1 0]+(x+2) , [0 0 1 1]+(y+2), 'black') 
          fill([0 1 1 0]+(x) , [0 0 1 1]+(y+2), 'black') 
          fill([0 1 1 0]+(x+1) , [0 0 1 1]+(y-1), 'black') 
          fill([0 1 1 0]+(x+2) , [0 0 1 1]+(y-1), 'black') 

          fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y+2), 'black') 
          fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y+2), 'black') 
          fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y+2), 'black') 

          fill([0 1 1 0]+(x-1) , [0 0 1 1]+(y-1), 'black') 
          fill([0 1 1 0]+(x-2) , [0 0 1 1]+(y-1), 'black') 
          fill([0 1 1 0]+(x-3) , [0 0 1 1]+(y-1), 'black') 

hold off                                             

hax = gca;                                          

hax.XTick = 0:100;                                  

hax.YTick = 0:100;                                  

hax.XTickLabel = [];                               

hax.YTickLabel = [];                              

grid                                               

axis square

Here is the plot that it outputs. I took a screenshot and labeled exactly where my center of origin is with its coordinates

Answer 1

[Walter Roberson]

If the rotation is for visual purposes, you could consider parenting to a hgtransform group and applying transforms to the group. Note that this would end up rotating the lines as well.