Global Mapper v25.0

Support for RPC

Qiao
Qiao Global Mapper UserTrusted User
edited June 2009 in SDK
Hi Mike,

In Global Mapper, can we do image (ortho-)rectification based on some Rational Polynomial. Coefficients (RPCs)? If yes, how this can be done? And how it is supported in SDK?

Many thanks,

Qiao

Comments

  • global_mapper
    global_mapper Administrator
    edited June 2009
    Qiao,

    You can rectify by supplying control points, but there is not any support for directly providing the polynomial coefficients.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com
  • Qiao
    Qiao Global Mapper User Trusted User
    edited June 2009
    Hi Mike,

    Does Global Mapper (and SDK) support computing some kind of RPC based on control points (with elevation)? I do not see this in the image rectifier tool. But just want to double check with you.

    Thanks,

    Qiao
  • global_mapper
    global_mapper Administrator
    edited June 2009
    Qiao,

    Global Mapper can do polynomial rectification, but it does not use elevation values, so ortho-rectification is not supported.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com
  • Qiao
    Qiao Global Mapper User Trusted User
    edited June 2009
    Hi Mike,

    Thanks a lot. One more question, do we have any functions in SDK to do similar things as image rectifier does ?

    Regards,

    Qiao
  • global_mapper
    global_mapper Administrator
    edited June 2009
    Qiao,

    Yes, you can rectify in the SDK using GM_LoadRectifiedLayer and GM_RepositionLayer.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com