Problem in reading .shp file

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Raymond Enovan 2012-1-9

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采纳的回答： Chandra Kurniawan

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Hi,

I have a problem in reading .shp file.

My .shp file contains all the major cities in Australia.

I want to read all the major cities located in the state of Queensland only.

I've tried to write code

shapedir = fullfile (pwd, 'Shapefile');
main_cities = shaperead (fullfile (shapedir, 'MainCities.shp'), 'usegeocoords', true);

But after this, I do not know how to do it.

When I opened the variable in the variable editor, I find a field named 'state', containing the name of different states in each struct.

Can someone help me? thank you

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Answer 1

Chandra Kurniawan 2012-1-9

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Hi, Raymond

You can perform that by adjusting the selector parameter.

I'll give you sample code :

shapedir = fullfile(pwd,'Shapefile');
main_cities = shaperead(fullfile(shapedir,'MainCities.shp'), ...
                       'usegeocoords',true,'selector', ...
                       {@(name) strcmp(name,'Queensland'),'state'});

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Chandra Kurniawan 2012-1-9

Then you need to create the 'symbolspec'

Eq :

cities_spec = makesymbolspec('point',{'default','marker','o',...

'markeredgecolor','r',...

'markerfacecolor','b'});

Then form mapviewer, you can set the symbolspec from 'layer' menu.

Raymond Enovan 2012-1-9

Thank you, sir

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Problem in reading .shp file

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