Create a heatmap for scattered data with geoscatter

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Mohamed Ghali Kabbaj 2022-11-6

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1844738-create-a-heatmap-for-scattered-data-with-geoscatter

评论： Kojiro Saito 2022-11-23

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I am trying to create a heatmap on geographicl plot using some values.

Here is the plotting part of my code :

Note that :

Quantiles = the data I used for the colors in each point on the map

%% Partie graphique
gs = geoscatter(Latitude,Longitude,70,Quantiles,"filled","DisplayName",'Intensité');
FigTitle=sprintf("IDF : T=%i ",T0);
title(FigTitle);
geobasemap streets
%Setting the colorbar
c = colorbar;
ColorBarValues=sort(unique(round(Quantiles)));
ColorBarValues=[ColorBarValues(1) floor(ColorBarValues(2)):floor(ColorBarValues(end-1)) ColorBarValues(end)];
set(c,'YTick',ColorBarValues,'YTickLabel',ColorBarValues)
c.Label.String = "Intensités";
%Data Tips       
row = dataTipTextRow('Intensité',Quantiles);
gs.DataTipTemplate.DataTipRows(3) = row;

I was able to use geoscatter for discret points and I get this :

What I wish is to find a way to interpolate the values I used to create a heatmap in this region.

If my question is not clear, please do tell me, I will try to rephrase it :)

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Mohamed Ghali Kabbaj 2022-11-12

When I say the values I used, I talk about the variable called "Quantiles", cause it's this variable that gives the scattered points a color.

Maybe your right, it's a contour plot, that we can get if we interpolate the colored scattered points I already have on my graph. Sorry about the confusion.

Do you have an idea how I can do this ?