Getting Coordinates of Polygon Using Matlab

I have the following plot generated using Matlab. The Red lines are generated using the Voronoi function and the black rectangular box using rectangle function.

 a=12.5e-3; 
 b=30e-3;
 vcellsx=[0.0105089656997958,0.00245744063039010,0.00770055845183299,0.00439574383828746,0.00946500286388402];
 vcellsy=[0.00762846536914593,0.00753251573928093,0.0141986654670819,0.0249248588368887,0.0226118728283549];
 [vx,vy]=voronoi(vcellsx,vcellsy);
 plot(vx,vy,'r-','LineWidth', 2);
 hold on
 rectangle('Position',[0 0 a b])

(1) I want to get the coordinates of the polygons(polygon 1,2,3,4 and 5) inside the rectangles (coordinates in clockwise or ccw direction).