Project stem plot map on map axes
h = stem3m(lat,lon,z)
h = stem3m(lat,lon,z,LineType)
h = stem3m(lat,lon,z,PropertyName,PropertyValue,...)
h = stem3m(lat,lon,z) displays a stem plot on the current map axes. Stems are located at the points (lat,lon) and extend from an altitude of 0 to the values of z. The coordinate inputs should be in the same AngleUnits as the map axes. It is important to note that the selection of z-values will greatly affect the 3-D look of the plot. Regardless of AngleUnits, the x and y limits of the map axes are at most -π to +π and -π/2 to +π/2, respectively. This means that for most purposes, appropriate z values would be on the order of 1 to 3, not 10 to 30. The axes DataAspectRatio property can be used to adjust the appearance of the graphic. The handles of the displayed stem lines can be returned in h.
A stem plot displays data as lines extending normal to the xy-plane, in this case, on a map.
load coast axesm sinusoid; view(3) h = framem; set(h,'zdata',zeros(size(lat))) plotm(lat,long) ptlat = [0 30 30 -50 -78]'; ptlon = [0 30 -70 65 -35]'; ptz = [1 1.5 2 .5 1]'; stem3m(ptlat,ptlon,ptz,'r-')