Plot multiple maps with transparency using raster data
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I have a three-Dimension dataset var_slice, the first and second dimensions are latitude and longitude, the third is time. I want to plot all the images for all times together by setting the transparency. So I can get a final figure in which regions have multiple occurence have darker color. How can I overlay all the images? I put the code to plot the map for a singe time below and attached the data. Any help would be appreciated.
% load the 3-D data
load var_slice.mat
load lat.mat
load lon.mat
% plot
pcolor(lon,lat,var_slice(:,:,1))
shading interp;
hold on
borders('continental us','color','k','linestyle','-','linewidth',1.2)
% axis tight
hold off
ylim([25,50])
xlim([-130,-95])
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1648811/image.jpeg)
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Respuestas (1)
Walter Roberson
el 21 de Mzo. de 2024
% load the 3-D data
load var_slice.mat
load lat.mat
load lon.mat
% plot
for K = 1 : size(var_slice,3)
s = pcolor(lon,lat,var_slice(:,:,1));
s.FaceAlpha = 0.05;
s.EdgeColor = 'none';
hold on
end
%shading interp;
borders('continental us','color','k','linestyle','-','linewidth',1.2)
% axis tight
hold off
ylim([25,50])
xlim([-130,-95])
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