Arrange data according to geographic regions I have set

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Arielle Patapanian
Arielle Patapanian 2020-6-15
评论： Arielle Patapanian 2020-6-26
Hi everyone,
I have rainfall data across Australia which I am trying to organise into geographic regions.
I have defined the geographic regions on QGIS and have created a shapefile. I then have an array on MATLAB where the rows/columns represent latitude and longitude and the values represents the precipitation data.
I am unsure how to use the shapefile to separate this precipitation data into the regions I created on the shapefile.
Any help would be greatly appreciated thank you!

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KSSV
KSSV 2020-6-15
  1. You can load/ read the shapefile using shaperead.
  2. You can seperate the required region from a grid using inpolygon.
  3. You can plot the surface using pcolor/ surf.
  4. You can use inteprolation using interp2.
Refer this if you want to seperate different regions of shape file from given arrays.
https://in.mathworks.com/matlabcentral/answers/407463-how-to-subset-the-matrix-array-with-shape-file
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KSSV
KSSV 2020-6-26
S = shaperead(shapefile) ;
N = length(S);
for i = 1:N
R = [S(i).X S(i).Y] ; % this is ith polygon
end

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