Adding a Legend to Scatter Shapes on a Map

5 Ansichten (letzte 30 Tage)
Claire Hollow
Claire Hollow am 8 Jul. 2020
Kommentiert: Claire Hollow am 8 Jul. 2020
Hello! I have a map of Nebraska I got by doing this
figure(1)
usamap('Nebraska')
nebraskahi = shaperead('usastatehi', 'UseGeoCoords', true,...
'Selector',{@(name) strcmpi(name,'Nebraska'), 'Name'});
geoshow(nebraskahi, 'FaceColor', [0.3 1.0, 0.675])
hold on
and then I use scatterm to plot different points on the map by longitude and latitude.
I have been using different shapes (circles, squares and diamonds) in scatterm for different kinds of points. I am trying to make a legend only to lable what the circles, squares and diamonds mean. Whenever I try to just do legend('Circle Meaning','Square Meaning','Diamond Meaning') it doesn't give me the scatter shapes and instead gives me lines (I'm assuming from the map). Please let me know how to do this, thank you advance for the help!

Akzeptierte Antwort

Adam Danz
Adam Danz am 8 Jul. 2020
Step 1: Define the legend strings using DisplayName
Example
h1 = scatter(___, 'd', 'DisplayName', 'Diamond meaning');
h2 = scatter(___, 'o', 'DisplayName', 'Circle meaning');
h3 = scatter(___, 's', 'DisplayName', 'Square meaning');
Step 2: Provide the scatter object handles as inputs to legend()
Example
legend([h1(1), h2(1), h3(1)])
  • No need to specify the legend string becaues it's already done in step 1.
  • The "(1)" indexing is just in case your handles are larger than 1x1.

Weitere Antworten (0)

Kategorien

Mehr zu Discrete Data Plots finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by