Why is the text function not showing the text for this figure?

Here is my sample code:

   colormap parula
   cm = colormap;

   latZone1 = [25, 25, 50, 50, 25];
   lonZone1 = [-105, -125, -125, -105, -105];
   zone1Poly = geoshape(latZone1, lonZone1);
   zone1Poly.Geometry = 'polygon';
   zone1Color = cm(33,:);

   states = geoshape(shaperead('usastatehi', 'UseGeoCoords', true));
   figure('Visible','on');
   hold on
   ax = usamap([25 50],[-125 -65]);
   geoshow(states,'FaceColor', 'w')
   geoshow(zone1Poly, 'LineWidth', 1,'FaceColor',zone1Color,'FaceAlpha',.5)
   text(37.5,-115,'Zone 1')

When I run it, the text does not show. Do I need to get the handle and change the font size? I figured it would scale to the figure but I could be wrong. Any help is greatly appreciated!

[dpb]

I don't have and have never used the mapping toolbox so I don't know but I'm guessing text isn't overloaded and so you've given the coordinates as latitude/longitude as you do with mapping functions but the actual axes are oriented t'other way 'round--if that's so, then

text(-115,37.5,'Zone 1')

should fix your problem. Mayhaps there's a function for the purpose specific to the mapping toolbox???

Answer 1

[Massimo Zanetti]

The problem is that the coordinates you are using to put text do not correspond to the ones in the axes. If you try using normalized coordinates, it will work:

Use

text(.5,.5,'Zone 1','FontSize',30,'Units','normalized');

Instad of

text(37.5,-115,'Zone 1');

Answer 2

[youngjae jang]