% couleur t=pi/4:pi/2:9/4*pi; x=cos(t); y=sin(t); dx=0; dy=0; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx,y/cos(pi/4)-b+22*dy,[a/20,b/20,0]) hold on a=a+2; end a=0; b=b+2; end dx=1; dy=0; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+4,y/cos(pi/4)-b+22*dy,[a/20,b/20,0.1]) hold on a=a+2; end a=0; b=b+2; end dx=2; dy=0; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+8,y/cos(pi/4)-b+22*dy,[a/20,b/20,0.2]) hold on a=a+2; end a=0; b=b+2; end dx=3; dy=0; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+12,y/cos(pi/4)-b+22*dy,[a/20,b/20,0.3]) hold on a=a+2; end a=0; b=b+2; end dx=0; dy=-1; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx,y/cos(pi/4)-b+22*dy-4,[a/20,b/20,0.4]) hold on a=a+2; end a=0; b=b+2; end dx=1; dy=-1; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+4,y/cos(pi/4)-b+22*dy-4,[a/20,b/20,0.5]) hold on a=a+2; end a=0; b=b+2; end dx=2; dy=-1; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+8,y/cos(pi/4)-b+22*dy-4,[a/20,b/20,0.6]) hold on a=a+2; end a=0; b=b+2; end dx=3; dy=-1; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+12,y/cos(pi/4)-b+22*dy-4,[a/20,b/20,0.7]) hold on a=a+2; end a=0; b=b+2; end dx=0; dy=-2; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx,y/cos(pi/4)-b+22*dy-8,[a/20,b/20,0.8]) hold on a=a+2; end a=0; b=b+2; end dx=1; dy=-2; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+4,y/cos(pi/4)-b+22*dy-8,[a/20,b/20,0.9]) hold on a=a+2; end a=0; b=b+2; end dx=2; dy=-2; a=0; b=0; for j=1:11 for i=1:11 fill(x/cos(pi/4)+a+22*dx+8,y/cos(pi/4)-b+22*dy-8,[a/20,b/20,1]) hold on a=a+2; end a=0; b=b+2; end hold off axis equal axis off