library for querying virtual polygon over raster spatial data

Discussion in 'C++' started by paul, Oct 1, 2005.

  1. paul

    paul Guest

    library for querying virtual polygon over raster spatial data

    in my c++ application, after calculating my polygon
    i wish to define it (simple 4 sided polygon with floats or line parameters)
    and use this to query a b/w image in memory,
    i want to get the pixel counts, full, hopefully partial, perhaps specific to
    a side, data to calculate area ect, can someone help point me to a library

    paul
    paul, Oct 1, 2005
    #1
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  2. paul wrote:
    > library for querying virtual polygon over raster spatial data
    >
    > in my c++ application, after calculating my polygon
    > i wish to define it (simple 4 sided polygon with floats or line
    > parameters) and use this to query a b/w image in memory,
    > i want to get the pixel counts, full, hopefully partial, perhaps
    > specific to a side, data to calculate area ect, can someone help
    > point me to a library


    Look in the newsgroup archives for "Available C++ Libraries FAQ". It
    is posted here about monthly by Nikki Locke. Perhaps you can find
    something there. Also, consider asking in 'comp.graphics.algorithms'
    where graphics questions belong.

    V
    Victor Bazarov, Oct 1, 2005
    #2
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