Issue creating a map of the USA

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Caleb Rudick
Caleb Rudick 2020-12-9
评论： Caleb Rudick 2020-12-9
I've been trying to figure out how to create a map of the USA (including Alaska and Hawaii) with labels for every state using the usamap function. Matlab only has documentation for how to name specific regions, not the whole country. My code is below - would anybody be able to help me modify it so that I can label the states? Thank you!!!!!!!
% Create a map of the continental United States
figure;
electionMap = usamap('all');
states = shaperead('usastatehi','UseGeoCoords',true);
nameStates = {states.Name};
Conus = 1:numel(states);
Alaska = strcmp(nameStates,'Alaska');
Hawaii = strcmp(nameStates,'Hawaii');
Conus(Hawaii|Alaska) = [];
% Display and format map of US mainland and Alaska and Hawaii
setm(electionMap(1),'Frame','off','Grid','off','MeridianLabel','off','ParallelLabel','off')
geoshow(electionMap(1),states(Conus),'FaceColor','#F6E8B1')
setm(electionMap(2),'Frame','off','Grid','off','MeridianLabel','off','ParallelLabel','off')
geoshow(electionMap(2), states(Alaska),'FaceColor','#F6E8B1')
setm(electionMap(3),'Frame','off','Grid','off','MeridianLabel','off','ParallelLabel','off')
geoshow(electionMap(3), states(Hawaii),'FaceColor','#F6E8B1')

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采纳的回答

Cris LaPierre
Cris LaPierre 2020-12-9
Ran in:
You can see an example here.
figure
ax = usamap('all');
set(ax, 'Visible', 'off')
states = shaperead('usastatelo', 'UseGeoCoords', true);
names = {states.Name};
indexHawaii = strcmp('Hawaii',names);
indexAlaska = strcmp('Alaska',names);
indexConus = 1:numel(states);
indexConus(indexHawaii|indexAlaska) = [];
stateColor = [0.5 1 0.5];
Display the three regions.
geoshow(ax(1), states(indexConus), 'FaceColor', stateColor)
geoshow(ax(2), states(indexAlaska), 'FaceColor', stateColor)
geoshow(ax(3), states(indexHawaii), 'FaceColor', stateColor)
Hide the frame.
for k = 1:3
setm(ax(k), 'Frame', 'off', 'Grid', 'off',...
'ParallelLabel', 'off', 'MeridianLabel', 'off')
end
Add labels to each state.
lat = [states(indexConus).LabelLat];
lon = [states(indexConus).LabelLon];
textm(lat, lon, {states(indexConus).Name},'HorizontalAlignment', 'center','Parent',ax(1));
latA = [states(indexAlaska).LabelLat];
lonA = [states(indexAlaska).LabelLon];
textm(latA, lonA, {states(indexAlaska).Name},'HorizontalAlignment', 'center','Parent',ax(2));
latH = [states(indexHawaii).LabelLat];
lonH = [states(indexHawaii).LabelLon];
textm(latH, lonH, {states(indexHawaii).Name},'HorizontalAlignment', 'center','Parent',ax(3));

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