Plotting contours of my data onto a map

Question

elspeth storey 2021-3-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/781178-plotting-contours-of-my-data-onto-a-map

回答： SaiDileep Kola 2021-3-26

Is is possible to plot contours of my data (a matrix) onto a map similar to that created by:

geolimits([49 53],[-6 2.8])
geobasemap streets

I get the following error when using contourm:

Error using hggroup Group cannot be a child of GeographicAxes.
Error in internal.mapgraph.HGGroupAdapter (line 62) g = hggroup('Parent',ax);
Error in internal.mapgraph.ContourGroup (line 282) h = h@internal.mapgraph.HGGroupAdapter(args{:});
Error in internal.mapgraph.GeographicContourGroup (line 55) h = h@internal.mapgraph.ContourGroup(varargin{:});
Error in contourm (line 110) h = internal.mapgraph.GeographicContourGroup(ax, Z, R, levelList);

I can plot the data onto a worldmap:

> worldmap([50 52],[-5.7 2.5]) 
> load coastlines 
> plotm(coastlat,coastlon) 
> contourm(testlat,testlon,testdat)

However, this map is poor quality as it is not particularly refined. I ideally want to plot on a map like 'geobase streets'.

Any advice on how to plot contours of my data onto the geo map would be apprecied. If this is not possible, then I would like to know if there is a way of improving the quality of map produced by worldmap. Thanks