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How to read shape file in matlab?

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Devendra
Devendra 2024-3-26
Locked: Rena Berman 2024-6-5
I am using following matlab code to read shape file. I am attaching the shape file also as zip file.
% pickup the shape files
d = uigetdir(pwd, 'Select a folder');
shapefiles = dir(fullfile(d, '*.shp'));
for n = 1:length(shapefiles)
\ shapefile = shapefiles(n);
disp(shapefile.name);
S = shaperead(shapefile.name);
\ polygon = polyshape([S.X], [S.Y]);
% Create a logical mask
logical_mask = inpolygon(lon, lat, polygon.Vertices(:, 1), polygon.Vertices(:, 2));
end
This is giving the following errors;
>> test\r\nAchi Khurd.shp
Error using openShapeFiles>checkSHP (line 82)
Unable to open file 'Achi Khurd.shp'. Check the path and filename or file permissions.
Error in openShapeFiles (line 19)
[basename, ext] = checkSHP(basename,shapeExtensionProvided);
Error in shaperead (line 212)
= openShapeFiles(filename,'shaperead');
Error
in test (line 9)
S = shaperead(shapefile.name);
>>
Please suggest me how to fix it? I would be highly obliged for kind help.
Dave
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回答（1 个）

Voss
Voss 2024-3-26
编辑：Voss 2024-3-26
You are attempting to read a file in the current directory:
S = shaperead(shapefile.name);
That is, you are not taking into account the location of that file.
You should specify an absolute or relative path to the file, e.g.:
file_name = fullfile(shapefile.folder,shapefile.name);
S = shaperead(file_name);
d = uigetdir(pwd, 'Select a folder');
assert(~isnumeric(d),'No folder selected')
shapefiles = dir(fullfile(d, '*.shp'));
for n = 1:length(shapefiles)
shapefile = shapefiles(n);
file_name = fullfile(shapefile.folder,shapefile.name);
disp(file_name);
S = shaperead(file_name);
polygon = polyshape([S.X], [S.Y]);
% Create a logical mask
logical_mask = inpolygon(lon, lat, polygon.Vertices(:, 1), polygon.Vertices(:, 2));
% ...
end

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