Access locations in maplineshape

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Andrew Stevens 2023-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/1976334-access-locations-in-maplineshape

评论： Robert Daly 2024-8-14，1:32

Hi,

I am trying to access the locations in a maplineshape object. They are in there because I am able to plot the locations using the geoplot function. For example, if I have the following geotable:

T = readgeotable("concord_roads.shp");
geoplot(T.Shape(1))

How do I access the locations in the maplineshape object, T.Shape(1)? I don't see anything in the documentation or an obvious method associated with the object.

Thanks!

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Answer 1

Andrew Stevens 2023-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/1976334-access-locations-in-maplineshape#answer_1247839

在 MATLAB Online 中打开

I am going to answer my own question here. I found I can get the coordinates buried in the maplineshape (or any other geospatial table object, I think) in the following way:

T = readgeotable("concord_roads.shp");
T2=geotable2table(T,["X","Y"]);
x=T2.X;
y=T2.Y;

There is probably a better way to do this, but it works. The documentation for geotable2table doesn't say anything about getting coordinates out of a geospatial table object so I was just trying stuff.

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Robert Daly 2024-8-14，1:32

Thanks, this was driving me nuts.

Previously I used readgeotable to read a GPX file, that let you access the Lat and Long so I was expecting something similar with a shape file (in projected coordinates), not so.

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