Which of the ManagedProj4Projection, UnmanagedProj4Projection and Proj4Projection?

[Anil2]

HI ThinkGeo,

Which of the following three projection class  should be used  ("ideal") for Decimal Degree to Spherical Mercator conversion from CPU/Memory usage stand point?

Currently I use Proj4Projection

- ManagedProj4Projection, UnmanagedProj4Projection  or  Proj4Projection

Regards,

Anil

 

[Clint]

Anil, 
  
 In my experience I like to use the ManagedProj4Projection class, I have seen some weird things with the regular Proj4 projection class especially on 64 bit platforms. 
  
 Thanks!