Multiple geoplot lines with one call

I'm trying to plot multiple lines with geoplot but I think I'm missing something with the geoplot notation. Supposing I want to plot only two lines:

from = [48 2]; % Longitude, Latitude
toA = [52 13]; % Longitude, Latitude
toB = [41.7 12.5]; % Longitude, Latitude

I can use:

geoplot([from(1) toA(1)],[from(2) toA(2)],[from(1) toB(1)],[from(2) toB(2)]);

which already seems quite complicated. What if I want to plot more lines? I would expect something like

lonFrom = [48; 48; 48]; % Longitude From
latFrom = [2; 2; 2]; % Latitude From
lonTo = [52; 41.7; 40]; % Longitude To
latTo = [13; 12.5; -3.5]; % Latitude To

geoplot([lonFrom lonTo],[latFrom latTo]) % ERROR

to work, but it doesn't. Apparently geoplot only works line by line meaning with vectors for longitude and latitude and no matrices. Is this true? Do I have to explicitly give longitude and latitude coordinates for every single line?

geoplot([lonFrom(1) lonTo(1)],[latFrom(1) latTo(1)],...
    [lonFrom(2) lonTo(2)],[latFrom(2) latTo(2)],...
    [lonFrom(3) lonTo(3)],[latFrom(3) latTo(3)]); % Works but impractical for multiple lines

It would be a nightmare to plot 5, 10 or 100 lines. A loop would somewhat do the trick, but I would like to have all the lines in one handle. Am I missing something? Shouldn't geoplot be able to accept and interpret matrices as input?

Answer 1

[Rob Comer]

You can use plot() to plot matrices in a geographic axes

Any easy workaround is to (a) create a GeographicAxes object and (b) add lines to it using the plot function instead of the geoplot function.

But first a quick correction: It looks like you want to connect each of 3 points to a common point at (lat=2, lon=48). However, plot creates a line for each column in the input matrices, not each row, so I think you have your inputs transposed. Starting again, and forming 2x3 matrices LAT and LON, we have:

lonFrom = [48 48 48]; % Longitude From
latFrom = [2 2 2]; % Latitude From
lonTo = [52 41.7 40]; % Longitude To
latTo = [13 12.5 -3.5]; % Latitude To
LON = [lonFrom; lonTo];
LAT = [latFrom; latTo];

For reference, here are the lines in an ordinary axis using plot:

figure
plot(LON,LAT)

Finally, create a GeographicAxes in advance using geoaxes, then pass it to plot as the first input:

figure
gx = geoaxes;
plot(gx,LAT,LON)

Note: Latitude comes before longitude when plotting into a GeographicAxes, whether using geoplot or plot (or line, geoscatter, scatter, or text).

Answer 2

[Cris LaPierre]

Use the documentation to determine what valid input arguments are. Your observation is correct - geoplot currently only supports vectors as inputs for lat and lon.