putting a patch into a 2d matrix

Question

I have a patch generated by the following code:

t=0:2*pi;
x=cos(t)*50+100;
y=sin(t)*50+100;
f1_h=fill(x,y,'r');

and would like to put the output of this patch into a 2D double matrix. This so I can use it to experiment on with other code (not for displaying purposes).

So this would be something like

d=zeros(1000,1000);
d=d.+patchToImage(f1_h)

except that patchToImage does not appear to exist.

Answer 1

I recommend using meshgrid and then applying inpolygon.