CODEWITHSUNDEEP
matlab
rwb7041
rwb7041

Reputation: 145

Matlab heatmap/topological map

I have 3 vectors of data: latitudes, longitudes, and elevations of specific locations. Each vector (lat, lon, elev) is a column vector with about 63 elements where element 1 of each represents a given location. What I want to do is create a topological map, or heatmap (whichever you want to call it) to map out these locations. I can plot them (like lon vs lat) no problem, but I'm not sure where to look to create a topological map. I've looked at using the surf function, but the elevations need to be a 2-D matrix for that and that would result in a lot of missing data that I just don't have.

Can someone give me some guidance here?

Upvotes: 1

Views: 1327

Answers (1)

Jonas
Jonas

Reputation: 74940

You can use TriScatteredInterp to interpolate your data onto a regular grid, which you then can use to plot the surface using surf, or a heatmap using contourf.

The example in the linked documentation of TriScatteredInterp will do exactly what you need, all you need to do is replace x, y, and z by your data and define the appropriate limits for meshgrid.

Upvotes: 1

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