title: Matlab - set specific color for value in pcolor
body: <p>I've created a pcolor whose caxis ranges from -3 to 3.  However, within the data I've got lots of points whose value are exactly 1000.  What I'd like to do is keep the colouring the same for all the other points, but set the colour for any point whose value is 1000 to black.  Does anyone have any ideas how I could do this..?</p>
  
  <p>Thanks a lot in advance,
  Adam</p>
  
  <p>--EDIT--</p>
  
  <p>I am currently creating the plot using a mapping tool for pcolor, m_pcolor, as follows (see <a href="http://www.eos.ubc.ca/~rich/private/mapug.html" rel="nofollow">here</a> for details):</p>
  
  <pre><code>m_proj('Robinson')
  h = m_pcolor(Lon', Lat', input_matrix);
  m_coast('Color', 'k', 'LineWidth', 1);
  set(h,'EdgeColor','none');
  </code></pre>