MATLAB: How to fill geographic plot region with specific color

fill plotgeographic axesgeoplotMapping Toolbox

I am using a circle to plot potential threat in geographic plot and i have all latitude and longitudes of circular region. I am using geoplot to plot a circle.

geoplot(lat_th,lon_th,"or")

Now i want to fill this circle with a specific colour. How can i fill this circular region?

Best Answer

To fill the circle, check out the markerfacecolor option in the documentation for geoplot. Alternatively, you may prefer the geoscatter function.

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MATLAB: How to fill a stairs plot with color

If you're trying to fill the left side of the staircase based on the value of x, here's a solution using rectangle(). It assumes y is monotonically increasing. If that's not the case, simply sort x and y so that it is.

colors = {'y' 'r' 'g' 'b'}; %in order of x = 1,2,3,4
xl = xlim(); 
for i = 1:length(x)-1
    rh = rectangle('Position', [xl(1), y(i), x(i+1), (y(i+1)-y(i))]); 
    rh.EdgeColor = 'none'; 
    rh.FaceColor = colors{x(i+1)};
end

Which produced this figure:

MATLAB: Geographic coordinates and speed

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.

Best Answer

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MATLAB: How to fill a stairs plot with color

MATLAB: Geographic coordinates and speed

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