title: Overlay coastlines on a matplotlib plot
body: <p>I'm looking to overlay some coastlines on graph representing an area. The area is defined by the box:</p>
  
  <ul>
  <li>Top: 3900000   </li>
  <li>Bottom: 3450000   </li>
  <li>Left: 300000   </li>
  <li>Right: 800000</li>
  </ul>
  
  <p>with the coordinate system WGS_1984_UTM_Zone_36N.</p>
  
  <p>I've tried using mpl_toolkits.basemap however I can't work out how to specify that area as the ESPG code (32636) is not accepted by Basemap, and when I attempt to manually insert the projection parameters (<code>m = Basemap(projection='tmerc', k_0=0.9996, lat_0=0, lon_0=33, llcrnrx=300000, llcrnry=3450000, urcrnrx=800000, urcrnry=3900000</code>) it still requires a lat long boundary box.</p>
  
  <p>Is there a another way to define that area in Basemap?</p>
  
  <p>Thanks!</p>
  
  <p>Edit: I'm trying to return an area of coastline defined by a box that is in the utm system, using lat/long values for the extremities of the box would result in over/underlap of the area covered by the coastlines when converted back into the utm system (I think, please correct me if I'm wrong).</p>