Add python PROJ.4 module under mapnik python API.

This makes the Projection class available from mapnik:

>>> from mapnik import Projection
registered datasource : raster
registered datasource : shape
registered datasource : postgis
>>> Projection
<class mapnik.Projection.Projection at 0xb7f7250c>
>>>

bindings/python/pyprojection/LICENSE

@@ -0,0 +1,27 @@
+Projection.i: SWIG interface file for PROJ.4 projection library.
+
+Copyright (c) 2001 Meridian Environmental Technology, Inc
+All rights reserved.
+
+Author: Douglas K. Rand <rand@meridian-enviro.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.

bindings/python/pyprojection/Projection.py

@@ -0,0 +1,93 @@
+# This file was created automatically by SWIG.
+import Projectionc
+class Projection:
+    def __init__(self,*args):
+        self.this = apply(Projectionc.new_Projection,args)
+        self.thisown = 1
+
+    def __del__(self,Projectionc=Projectionc):
+        if self.thisown == 1 :
+            Projectionc.delete_Projection(self)
+    def Forward(*args):
+        val = apply(Projectionc.Projection_Forward,args)
+        return val
+    def Inverse(*args):
+        val = apply(Projectionc.Projection_Inverse,args)
+        return val
+    def cobject(*args):
+        val = apply(Projectionc.Projection_cobject,args)
+        return val
+    __setmethods__ = {
+        "units" : Projectionc.Projection_units_set,
+        "proj" : Projectionc.Projection_proj_set,
+    }
+    def __setattr__(self,name,value):
+        if (name == "this") or (name == "thisown"): self.__dict__[name] = value; return
+        method = Projection.__setmethods__.get(name,None)
+        if method: return method(self,value)
+        self.__dict__[name] = value
+    __getmethods__ = {
+        "units" : Projectionc.Projection_units_get,
+        "proj" : Projectionc.Projection_proj_get,
+    }
+    def __getattr__(self,name):
+        method = Projection.__getmethods__.get(name,None)
+        if method: return method(self)
+        raise AttributeError,name
+    def __repr__(self):
+        return "<C Projection instance at %s>" % (self.this,)
+    
+    def __del__(self,Projectionc=Projectionc):
+        if getattr(self, 'thisown', 0):
+            Projectionc.delete_Projection(self)
+    
+class ProjectionPtr(Projection):
+    def __init__(self,this):
+        self.this = this
+        self.thisown = 0
+        self.__class__ = Projection
+
+
+
+
+
+#-------------- FUNCTION WRAPPERS ------------------
+
+int_array = Projectionc.int_array
+
+int_destroy = Projectionc.int_destroy
+
+int_get = Projectionc.int_get
+
+int_set = Projectionc.int_set
+
+double_array = Projectionc.double_array
+
+double_destroy = Projectionc.double_destroy
+
+double_get = Projectionc.double_get
+
+double_set = Projectionc.double_set
+
+float_array = Projectionc.float_array
+
+float_destroy = Projectionc.float_destroy
+
+float_get = Projectionc.float_get
+
+float_set = Projectionc.float_set
+
+string_array = Projectionc.string_array
+
+string_destroy = Projectionc.string_destroy
+
+string_get = Projectionc.string_get
+
+string_set = Projectionc.string_set
+
+
+
+#-------------- VARIABLE WRAPPERS ------------------
+
+DEGREES = Projectionc.DEGREES
+RADIANS = Projectionc.RADIANS

bindings/python/pyprojection/SConscript

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+#  This file is part of Mapnik (c++ mapping toolkit)
+#  Copyright (C) 2005 Artem Pavlenko, Jean-Francois Doyon
+#
+#  Mapnik is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or any later version.
+# 
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+# 
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+# 
+# $Id$
+
+import glob
+
+Import('env')
+
+prefix = env['PYTHON_PREFIX'] + '/lib/python' + env['PYTHON_VERSION'] + '/site-packages/'
+
+headers = [env['PYTHON_PREFIX'] + '/include/python' + env['PYTHON_VERSION']] + env['CPPPATH']
+
+projection = env.SharedLibrary('Projectionc', 'Projection_wrap.c', LIBS=['proj','pthread'], SHLIBPREFIX='', CPPPATH=headers)
+
+env.Alias(target='install', source=env.Install(prefix+'/mapnik/', [projection, 'Projection.py']))