title: PROJ.4 library and OSGB36
body: <p>hope you are well</p>
  
  <p>I am trying to convert lat/long coordinates to OSGB36 x and y using the proj.4 library.</p>
  
  <p>Has anyone else successfully done this? I need to fill the srcPrj4String and destPrj4String variables, e.g.</p>
  
  <p>string srcPrj4String = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs";
  <br>string destPrj4String = "+proj=utm +zone=11 +ellps=GRS80 +datum=NAD83 +units=m";</p>
  
  <p>but I can't figure out the what the destPrj4String should be with OSGB36 - i know the datum should be +datum=OSGB36, but everything I try, doesn't work</p>
  
  <p>Any ideas?</p>
  
  <p>Many thanks in advance</p>
  
  <p>leddy</p>