#!/usr/bin/env python
###############################################################################
# $Id$
#
# Project:  GDAL/OGR Test Suite
# Purpose:  Test some USGS specific translation issues.
# Author:   Andrey Kiselev, dron@remotesensing.org
# 
###############################################################################
# Copyright (c) 2004, Andrey Kiselev <dron@remotesensing.org>
# 
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################

import os
import sys

sys.path.append( '../pymod' )

import gdaltest
import gdal
import osr

###############################################################################
# Test the osr.SpatialReference.ImportFromUSGS() function.
#

def osr_usgs_1():
    
    srs = osr.SpatialReference()
    srs.ImportFromUSGS(8, 0, \
		       (0.0, 0.0, \
		        gdal.DecToPackedDMS(47.0), gdal.DecToPackedDMS(62.0), \
			gdal.DecToPackedDMS(45.0), gdal.DecToPackedDMS(54.5), \
			0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0), \
		       15)

    if abs(srs.GetProjParm(osr.SRS_PP_STANDARD_PARALLEL_1)-47.0)>0.0000005 \
       or abs(srs.GetProjParm(osr.SRS_PP_STANDARD_PARALLEL_2)-62.0)>0.0000005 \
       or abs(srs.GetProjParm(osr.SRS_PP_LATITUDE_OF_CENTER)-54.5)>0.0000005 \
       or abs(srs.GetProjParm(osr.SRS_PP_LONGITUDE_OF_CENTER)-45.0)>0.0000005 \
       or abs(srs.GetProjParm(osr.SRS_PP_FALSE_EASTING)-0.0)>0.0000005 \
       or abs(srs.GetProjParm(osr.SRS_PP_FALSE_NORTHING)-0.0)>0.0000005:
        gdaltest.post_reason('Can not import Equidistant Conic projection.')
        return 'fail'

    return 'success'

###############################################################################
# Test the osr.SpatialReference.ExportToUSGS() function.
#

def osr_usgs_2():
    
    srs = osr.SpatialReference()
    srs.ImportFromWkt("""PROJCS["unnamed",GEOGCS["NAD27",\
    DATUM["North_American_Datum_1927",\
    SPHEROID["Clarke 1866",6378206.4,294.9786982139006,\
    AUTHORITY["EPSG","7008"]],AUTHORITY["EPSG","6267"]],\
    PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],\
    AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Conformal_Conic_2SP"],\
    PARAMETER["standard_parallel_1",33.90363402777778],\
    PARAMETER["standard_parallel_2",33.62529002777778],\
    PARAMETER["latitude_of_origin",33.76446202777777],\
    PARAMETER["central_meridian",-117.4745428888889],\
    PARAMETER["false_easting",0],PARAMETER["false_northing",0],\
    UNIT["metre",1,AUTHORITY["EPSG","9001"]]]""")

    (proj_code, zone, parms, datum_code) = srs.ExportToUSGS()

    if proj_code != 4 or datum_code != 0 \
       or abs(gdal.PackedDMSToDec(parms[2]) - 33.90363403) > 0.0000005 \
       or abs(gdal.PackedDMSToDec(parms[3]) - 33.62529003) > 0.0000005 \
       or abs(gdal.PackedDMSToDec(parms[4]) - -117.4745429) > 0.0000005 \
       or abs(gdal.PackedDMSToDec(parms[5]) - 33.76446203) > 0.0000005:
        gdaltest.post_reason('Can not import Lambert Conformal Conic projection.')
        return 'fail'

    return 'success'

gdaltest_list = [ 
    osr_usgs_1,
    osr_usgs_2,
    None ]

if __name__ == '__main__':

    gdaltest.setup_run( 'osr_usgs' )

    gdaltest.run_tests( gdaltest_list )

    gdaltest.summarize()