Label Polygons in Mapshow

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CMatlabWold 2020-5-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/531948-label-polygons-in-mapshow

评论： CMatlabWold 2020-5-28

采纳的回答： Sai Sri Pathuri

ZipStruct.mat

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I have a shapefile of zip codes of NYC. When I use the code, I get this pic and a structure is created, where zip codes are listed in column 5 of the structure. How can I label these zip codes on the map, where it shows?

Thanks,

Candace

%S = shaperead('ZipCode1.shp','UseGeoCoords',true);
S = shaperead('ZipCode1.shp')
mapshow(S)

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CMatlabWold 2020-5-27

Thank you! It works. Is there a way to reduce the text size?

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Sai Sri Pathuri 2020-5-26

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/531948-label-polygons-in-mapshow#answer_439233

编辑：Sai Sri Pathuri 2020-5-26

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You may find internal point of bounding boxes and use text function.

for i=1:263
meanValue = mean(S(i).BoundingBox);
text(meanValue(1),meanValue(2),num2str(S(i).ZIPCODE))
end

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Sai Sri Pathuri 2020-5-27

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To reduce text size, you may use FontSize name-value pair of text funtion

text(meanValue(1),meanValue(2),num2str(S(i).ZIPCODE),'FontSize',fontsize)

CMatlabWold 2020-5-28

Thank you!

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类别

Mathematics and Optimization Mapping Toolbox Map Display Vector and Raster Map Display

Radar Mapping Toolbox Map Display Vector and Raster Map Display

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