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How change color of lines at shapefiles with various ID's?

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Kelly Kyriakou
Kelly Kyriakou 2017-5-9
I have a shapefile with roads and I want all the road to have the same color except from some road with specific ID. I have tried the following but at the figure it is shown with different color the last loop:
for i = 1:size(id2select,1)
roadColors = ...
makesymbolspec('Line',{'Road_ID', id2select(i), 'Color','r'},...
{'Default','Color','b'});
mapshow(map,'SymbolSpec',roadColors);
end
end
I tried also using drawnow but this is animated and I need to be permanent.

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