How to convert lon lat data extracted from Mapping Toolbox?

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Leon
Leon 2020-1-24
评论： Leon 2020-1-24
Here is my code trying to extract the longitude and latitude info out of mapping tool box so that I can make my own plots within app-deisigner (right now it does not support mapping toolbox):
load coastlines
axesm mercator
p = plotm(coastlat, coastlon);
xlswrite('map.xlsx', [p.XData', p.YData']);
The issue is that the longitude and latitude values look very weird. Instead of having a range of -180 and 180 for longitude and -90 and 90 for latitude. They both range from -3 to 3.
Anyone knows how to convert them back to the regular longitude and latitude range?
Thanks!
  2 个评论
Geoff Hayes
Geoff Hayes 2020-1-24
Leon - isn't the original data just the coastlat and coastlon variables? It could be that hte XData and YData correspond to the positions as drawn on your axes.
Leon
Leon 2020-1-24
Thank you so much! This basically answers my question.
So bad I can't accept your answer, because it is posted as a comment.
Liqing

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