#!/usr/bin/env python
# -*- coding: utf-8 -*-
###############################################################################
# $Id$
#
# Project: GDAL/OGR Test Suite
# Purpose: Test read/write functionality for XYZ driver.
# Author: Even Rouault <even dot rouault at mines dash paris dot org>
#
###############################################################################
# Copyright (c) 2010-2013, Even Rouault <even dot rouault at mines-paris dot org>
#
# Permission is hereby granted, free of charge, to any person oxyzaining 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
import string
import struct
from osgeo import gdal
from osgeo import osr
sys.path.append( '../pymod' )
import gdaltest
###############################################################################
# Test CreateCopy() of byte.tif
def xyz_1():
tst = gdaltest.GDALTest( 'XYZ', 'byte.tif', 1, 4672 )
return tst.testCreateCopy( vsimem = 1, check_gt = ( -67.00041667, 0.00083333, 0.0, 50.000416667, 0.0, -0.00083333 ) )
###############################################################################
# Test CreateCopy() of float.img
def xyz_2():
src_ds = gdal.Open('data/float.img')
ds = gdal.GetDriverByName('XYZ').CreateCopy('tmp/float.xyz', src_ds, options = ['COLUMN_SEPARATOR=,', 'ADD_HEADER_LINE=YES'] )
got_cs = ds.GetRasterBand(1).Checksum()
expected_cs = src_ds.GetRasterBand(1).Checksum()
ds = None
gdal.GetDriverByName('XYZ').Delete('tmp/float.xyz')
if got_cs != expected_cs and got_cs != 24387:
print(got_cs)
return 'fail'
return 'success'
###############################################################################
# Test random access to lines of imagery
def xyz_3():
content = """Y X Z
0 0 65
0 1 66
1 0 67
1 1 68
2 0 69
2 1 70
"""
gdal.FileFromMemBuffer('/vsimem/grid.xyz', content)
ds = gdal.Open('/vsimem/grid.xyz')
buf = ds.ReadRaster(0,2,2,1)
bytes = struct.unpack('B' * 2, buf)
if bytes != (69, 70):
print(buf)
return 'fail'
buf = ds.ReadRaster(0,1,2,1)
bytes = struct.unpack('B' * 2, buf)
if bytes != (67, 68):
print(buf)
return 'fail'
buf = ds.ReadRaster(0,0,2,1)
bytes = struct.unpack('B' * 2, buf)
if bytes != (65, 66):
print(buf)
return 'fail'
buf = ds.ReadRaster(0,2,2,1)
bytes = struct.unpack('B' * 2, buf)
if bytes != (69, 70):
print(buf)
return 'fail'
ds = None
gdal.Unlink('/vsimem/grid.xyz')
return 'success'
###############################################################################
# Test regularly spaced XYZ but with missing values at beginning and/or end of lines
def xyz_4_checkline(ds, i, expected_bytes):
buf = ds.ReadRaster(0,i,ds.RasterXSize,1)
bytes = struct.unpack('B' * ds.RasterXSize, buf)
if bytes != expected_bytes:
return False
return True
def xyz_4():
content = """
440750 3751290 1
440810 3751290 2
440690 3751230 3
440750 3751230 4
440810 3751230 5
440870 3751230 6
440810 3751170 7"""
gdal.FileFromMemBuffer('/vsimem/grid.xyz', content)
expected = [ ( 0, 1, 2, 0 ), ( 3, 4, 5, 6 ), (0, 0, 7, 0) ]
ds = gdal.Open('/vsimem/grid.xyz')
if ds.GetRasterBand(1).GetMinimum() != 1:
gdaltest.post_reason('fail')
return 'fail'
if ds.GetRasterBand(1).GetMaximum() != 7:
gdaltest.post_reason('fail')
return 'fail'
if ds.GetRasterBand(1).GetNoDataValue() != 0:
gdaltest.post_reason('fail')
return 'fail'
for i in [0,1,2,1,0,2,0,2,0,1,2]:
if not xyz_4_checkline(ds, i, expected[i]):
gdaltest.post_reason('fail')
return 'fail'
ds = None
gdal.Unlink('/vsimem/grid.xyz')
return 'success'
###############################################################################
# Test XYZ with only integral values and comma field separator
def xyz_5():
content = """0,1,100
0.5,1,100
1,1,100
0,2,100
0.5,2,100
1,2,100
"""
gdal.FileFromMemBuffer('/vsimem/grid.xyz', content)
ds = gdal.Open('/vsimem/grid.xyz')
if ds.RasterXSize != 3 or ds.RasterYSize != 2:
gdaltest.post_reason('fail')
return 'fail'
got_gt = ds.GetGeoTransform()
expected_gt = (-0.25, 0.5, 0.0, 0.5, 0.0, 1.0)
ds = None
gdal.Unlink('/vsimem/grid.xyz')
for i in range(6):
if abs(got_gt[i]-expected_gt[i]) > 1e-5:
gdaltest.post_reason('fail')
print(got_gt)
print(expected_gt)
return 'fail'
return 'success'
###############################################################################
# Test XYZ with comma decimal separator and semi-colon field separator
def xyz_6():
content = """0;1;100
0,5;1;100
1;1;100
0;2;100
0,5;2;100
1;2;100
"""
gdal.FileFromMemBuffer('/vsimem/grid.xyz', content)
ds = gdal.Open('/vsimem/grid.xyz')
if ds.RasterXSize != 3 or ds.RasterYSize != 2:
gdaltest.post_reason('fail')
return 'fail'
got_gt = ds.GetGeoTransform()
expected_gt = (-0.25, 0.5, 0.0, 0.5, 0.0, 1.0)
ds = None
gdal.Unlink('/vsimem/grid.xyz')
for i in range(6):
if abs(got_gt[i]-expected_gt[i]) > 1e-5:
gdaltest.post_reason('fail')
print(got_gt)
print(expected_gt)
return 'fail'
return 'success'
###############################################################################
# Cleanup
def xyz_cleanup():
return 'success'
gdaltest_list = [
xyz_1,
xyz_2,
xyz_3,
xyz_4,
xyz_5,
xyz_6,
xyz_cleanup ]
if __name__ == '__main__':
gdaltest.setup_run( 'xyz' )
gdaltest.run_tests( gdaltest_list )
gdaltest.summarize()