Scatter plot on top of map?

I am trying to plot a scatter plot on top of a map of my area of interest and cannot seem to find a plotting function to do so. What I have so far is a scatter plot of latitude, longitude, and waveheight and want to plot this on top of a map I have generated using worldmap. Any help would be greatly appreciated. Sarah

Answer 1

[Walter Roberson]

If you are using the mapping toolbox, scatterm()

[Sarah]

For some reason when I plot scatterm(long,lat,5,wh) the amplitude of the wh is severely reduced. Is there any way to prevent this from happening?

[Walter Roberson]

You would be plotting in 2D, and the wh would be represented as color in that call.

It does not appear at the moment that there is a scatter3m() call. It would likely be possible to create one, but I do not have the mapping toolbox to experiment with.

There is stem3() if you are trying to show wh in the third dimension.

[Sarah]

I essentially want to plot wh as the colour of the points at the different latitudes and longitudes. Would stem3() do this on top of my existing map?

[Walter Roberson]

If you do want to represent wh as color then scatterm() is the appropriate one.

Could you explain further about "the amplitude of the wh is severely reduced" ?

[Sarah]

What I mean is that I want the color bar to represent the values recorded int he wh variable but when I plot this as scatterm(long,lat,5,wh) the values in the wh vector are changed and reduced from their original values

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers