title: Challenges with geoshow in MATLAB
body: <p>I am not having any luck with the geoshow function in <code>MATLAB</code>. I am able to get the worldmap to load, but once I use geoshow I get a single color for the map. The matrix shows up fine in imagesc. </p>
  
  <blockquote>
    <p>cmap = colormap(jet)<br>
    worldmap([41 53],[-123 -109])<br>
    geoshow(demo, cmap, R)</p>
  </blockquote>
  
  <p>here is the <a href="http://www.science.oregonstate.edu/~sprolese/demotif/demo.tif" rel="nofollow">link</a> to the sample file.</p>
  
  <p>Thanks!</p>