How can I superimpose my contour plot to a map using usamap function?
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Behrooz Daneshian
2023 年 2 月 19 日
コメント済み: Walter Roberson
2023 年 2 月 19 日
Using the following code I could develope countour maps showing freezing depth across the Alaska states. How can I superimpose these contours to the Alaska map?. When I use usamap function and hold on together, contours will not be displayed on the Alaska map.
clear
close all
clc
load('POFDE.mat');
data = cell2mat(POFDE);
[lat,lon] = meshgrid(unique(data(:,1)),unique(data(:,2)));
for i = 1:(size(data, 2)-2)
figure
usamap("Alaska")
states = readgeotable("usastatehi.shp");
row = states.Name == "Alaska";
alaska = states(row,:);
geoshow(alaska,"FaceColor",[0.3 1.0, 0.675])
textm(alaska.LabelLat,alaska.LabelLon,alaska.Name, ...
"HorizontalAlignment","center")
hold on;
I = scatteredInterpolant(data(:,[1 2]), data(:,i+2));
contourm(lon,lat,min(1,max(0,I(lat,lon))),'ShowText','on')
colorbar
title(['The probability of frost depth exceedance of \Omega_{\delta} = ' num2str(i) ' feet'])
exportgraphics(gca, sprintf('FrostPlot_%d_feet.png', i))
hold off
end
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採用された回答
Walter Roberson
2023 年 2 月 19 日
contourm needs lat then long
2 件のコメント
Walter Roberson
2023 年 2 月 19 日
You cannot use contourf with an axesm based axes. contourf is only suitable for cartesian axes.
You can possibly use contourm with the 'fill' option.
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