Get coordinates of hgtransform after transformation

Hello.

I am transforming a list of points on a 2D Plane for drawing in a figure. It would be helpfull for other parts of the simulation, to know the position of each point after the transformation. What is the most practical way to get these new coordinates?

conePos = [5 5; 10 10; 3 4];
cones = hgtransform;
[idx ~] = size(conePos);

for i = 1:idx % Draw a small box around each point
  patch('XData',[-1, 1, 1, -1] * 0.2 + conePos(i,1), ...
    'YData',[-1, -1, 1, 1] * 0.2 + conePos(i,2), ...
    'FaceColor','yellow','Parent',cones)
end

set(cones, 'Matrix', makehgtform('zrotate',[1 2 3], ...
    'scale',1, ...
    'translate',-0.5...
    ));

So i need to get the position of each Element in conePos after the transformation.

Thanks for your help.

EDIT: I have found a solution by myself. See the code below:

pts = [1 0; 1 1];
theta = pi/4;
offset = [0 0 0];
transformCoords(pts, theta, offset)

function [ out ] = transformCoords( pts, theta, offset )
out = zeros(size(pts));

for i=1:size(pts, 1)
    ptsH = [pts(i,1); pts(i,2); 0; 1;];

      R = makehgtform('zrotate',-theta, ...
                            'scale',1, ...
                            'translate',-offset ...
                            );

      p2 = R*ptsH;
      pOut = [p2(1,:) ./ p2(4,:); ...
              p2(2,:) ./ p2(4,:); ...
              p2(3,:) ./ p2(4,:); ...
              ];
      out(i,1) = pOut(1);
      out(i,2) = pOut(2);
  end

end