Grid through a center point

I need do a grid that adaptes to my structure like the figure in attach. However i need establish a metric for the point in red that varies for different cases to stay always in the center of a bin, so I need construct the grid through the coordinates of this point. Can you help me?

Thanks.

Answer 1

[Image Analyst]

I'm not sure what you're asking. Do you want that blue region to be like a solid region, and then find the centroid of it??? If so, use poly2mask(), activecontour(), bwconncomp(), and then regionprops().

[DI]

No, I want construct a grid in the blue region but the point in red need to be in the center of a bin. So I give the coordinates of the point and then I need do a grid so that the red point be in the center of a grid bin.

[Image Analyst]

So you can use linspace() or just start:increment:stop to define coordinates.