extract Object properties from cell array

I have a cell array where each cell is a .NET object called Centroid. It has the following structure.

u.centers{:}
ans = 
  Centroid with properties:

             x: 112.5769
             y: 29.5762
         count: 1250
      strength: 12.3399
  ans = 
    Centroid with properties:

             x: 21.5000
             y: 18.0690
         count: 58
      strength: 12.3400

I would like to plot the x,y values. How do I go about extracting the x and y values for a plot. This was my naive attempt:

plot(u.centers{:}.x, u.centers{:}.y, 'r.');

Answer 1

[Guillaume]

This should work:

 xy = cell2mat(cellfun(@(c) [c.x; c.y], u.centers, 'UniformOutput', false));
 plot(xy(1, :), xy(2, :), 'r.')

Answer 2

[Doctor G]

See figure above