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Cellfun couple inpolygon?

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Xh Du
Xh Du 2017-3-2
评论： Xh Du 2017-3-3
Hi all,
I have a cell denoting 4 grid blocks like this:
parameter{:}
ans =
1.5000 1.5000
1.7500 1.5000
1.7500 1.7500
1.5000 1.7500
ans =
1.5000 1.7500
1.7500 1.7500
1.7500 2.0000
1.5000 2.0000
ans =
1.7500 1.5000
2.0000 1.5000
2.0000 1.7500
1.7500 1.7500
ans =
1.7500 1.7500
2.0000 1.7500
2.0000 2.0000
1.7500 2.0000
My question is, if now I have a x-y coordinate, say x = 1.63, y = 1.05, how can I loop through these 4 cells to determine whether x-y is in polygon or not? I think this can be solved by apply inpolygon using cellfun for all cell elements, but I'm not too sure about how to do it.
Many thanks!

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采纳的回答

Walter Roberson
Walter Roberson 2017-3-2
query_x = 1.63;
query_y = 1.05;
does_it_match = cellfun(@(poly) inpolygon(query_x, query_y, poly(:,1), poly(:,2)), parameter)

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