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proj_nif

0.1.3
0.1.4 0.1.3 0.1.2 0.1.1

A simple Erlang/Elixir NIF wrapper for the Proj C library

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proj_nif src proj_nif.erl
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src/proj_nif.erl 

-module(proj_nif).

-on_load(init/0).

-export([convert_crs_to_crs/4]).



-define(APPNAME, proj_nif).

-define(LIBNAME, libproj_nif).



%% Types



%%====================================================================

%% API functions

%%====================================================================



convert_crs_to_crs(_, _, _, _) -> nif_not_loaded.



%%====================================================================

%% Internal functions

%%====================================================================



init() ->

    SoName = case code:priv_dir(?APPNAME) of

        {error, bad_name} ->

            case filelib:is_dir(filename:join(["..", "priv", "lib"])) of

                true -> filename:join([filename:join(["..", "priv", "lib"]), ?LIBNAME]);

                _ -> filename:join([filename:join(["priv", "lib"]), ?LIBNAME])

            end;

        Dir -> filename:join([filename:join(Dir, "lib")], ?LIBNAME)

    end,

    erlang:load_nif(SoName, 0).