title: How to geolocalize on custom maps iphone and android
body: <p>My client would like me to implement geolocation in a mobile application. He want me to use a map which is quite deformed (definitely not a google-like map). Is it an easy way to transform the GPS coordinates into the coordinates on that deformed map? </p>
  
  <p>I get the coordinates (X0,Y0) from the GPS -> I need the location on my client's map (X1,Y1)</p>