geographic coordinates and speed

Good morning,

I wanted to know if it was possible to associate and plot, with different colors depending on various ranges, a constant speed value to geographic coordinates (therefore within a geoplot).

in practice I have a series of satellite acquisitions consisting of 3 columns: the first two are lat and long and the third is the speed acquired at that point. What I would like to do is have the satellite plot of the coordinates associated with their velocity value.

I don't know if I get the idea right.

Answer 1

[KSSV]

It depends on whether your data is scattered data or structured data. What ever it is, what you want is very much possible. Refer this link: https://in.mathworks.com/matlabcentral/answers/412639-creating-surface-plot-from-a-matrix-with-3-columns

Also have a look on griddata, scatteredInterpolant. To plot have a look on scatter, surf, pcolor.

[Francesco Miraglia]

the data is structured, imported from excel.

I had thought of doing it this way. But I don't know why, it gives me a plot as if all the values in the fourth column are zero (they aren't).

figure (1), geoplot(TYPE {:,2}, TYPE {:,3},'b')
 
 if TYPE {i,4}==0
     text(TYPE{:,2}, TYPE {:,3}, '*','color','green');
 elseif (TYPE {i,4}>0 & TYPE {i,4}<5)
     text(TYPE{:,2}, TYPE {:,3}, '*','color','red');
 elseif (TYPE{i,4}>5 & TYPE {i,4}<10)
     text(TYPE{:,2}, TYPE {:,3}, '*','color','magenta');
 else
     text(TYPE{:,2}, TYPE {:,3}, '*','color','yellow');
 end
 
 title( 'TITLE')
 geobasemap satellite