Plot data (3d) only inside polygon

Asked by Shakir Hussain on 26 Mar 2019

Latest activity Edited by Shakir Hussain on 26 Mar 2019

11 views (last 30 days)

I am trying to plot data (45*56*6) only inside polygon and i tried these steps

imported shapefile and run query to sperate data point inside and outside polygon as

for i=1:6;
isin = inpolygon(X,Y,S.X,S.Y);
test(:,:,i(~isin)) =  NaN;
end;

and plot

for i =1:6
    subplot(3,2,i);
    imagesc(D_masked(:,:,i));
    set(a,'AlphaData',~isnan(a))
 end

but it did not work for me as

imagesc(xyz,'AlphaData',~isnan(xyz))

xyz here is equal to 45*56 2d data.

Any kind of help is appreciatable.

2 Comments

KSSV on 26 Mar 2019

It can be done...what problem you are facing? Don't use imagesc. Use pcolor.

Shakir Hussain on 26 Mar 2019

In first section crossponding values of each slice of 3d data with logical 2d data has to replace with NaN by keeping rest of all values as it is (that are 0-100) which I could not figure out. Secondly I would like to use imagesc instead of pcolor.

Products

MATLAB

Release

R2014b

0 Answers

Products

MATLAB

Release

R2014b

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