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GdalAlgorithmsTest.py
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GdalAlgorithmsTest.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
GdalAlgorithmTests.py
---------------------
Date : January 2016
Copyright : (C) 2016 by Matthias Kuhn
Email : matthias@opengis.ch
***************************************************************************
* *
* This program 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 *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Matthias Kuhn'
__date__ = 'January 2016'
__copyright__ = '(C) 2016, Matthias Kuhn'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = ':%H$'
import AlgorithmsTestBase
from processing.algs.gdal.OgrToPostGis import OgrToPostGis
from processing.algs.gdal.GdalUtils import GdalUtils
from processing.algs.gdal.AssignProjection import AssignProjection
from processing.algs.gdal.ClipRasterByExtent import ClipRasterByExtent
from processing.algs.gdal.ClipRasterByMask import ClipRasterByMask
from processing.algs.gdal.gdal2tiles import gdal2tiles
from processing.algs.gdal.gdalcalc import gdalcalc
from processing.algs.gdal.gdaltindex import gdaltindex
from processing.algs.gdal.contour import contour
from processing.algs.gdal.GridAverage import GridAverage
from processing.algs.gdal.GridDataMetrics import GridDataMetrics
from processing.algs.gdal.GridInverseDistance import GridInverseDistance
from processing.algs.gdal.GridInverseDistanceNearestNeighbor import GridInverseDistanceNearestNeighbor
from processing.algs.gdal.GridLinear import GridLinear
from processing.algs.gdal.GridNearestNeighbor import GridNearestNeighbor
from processing.algs.gdal.buildvrt import buildvrt
from processing.algs.gdal.hillshade import hillshade
from processing.algs.gdal.ogr2ogr import ogr2ogr
from processing.algs.gdal.proximity import proximity
from processing.algs.gdal.rasterize import rasterize
from processing.algs.gdal.retile import retile
from processing.algs.gdal.translate import translate
from processing.algs.gdal.warp import warp
from processing.algs.gdal.fillnodata import fillnodata
from qgis.core import (QgsProcessingContext,
QgsProcessingFeedback,
QgsCoordinateReferenceSystem,
QgsApplication,
QgsVectorLayer,
QgsFeature,
QgsGeometry,
QgsPointXY,
QgsProject,
QgsVectorLayer,
QgsRectangle,
QgsProcessingException,
QgsProcessingFeatureSourceDefinition)
import nose2
import os
import shutil
import tempfile
from qgis.testing import (
start_app,
unittest
)
testDataPath = os.path.join(os.path.dirname(__file__), 'testdata')
class TestGdalAlgorithms(unittest.TestCase, AlgorithmsTestBase.AlgorithmsTest):
@classmethod
def setUpClass(cls):
start_app()
from processing.core.Processing import Processing
Processing.initialize()
cls.cleanup_paths = []
@classmethod
def tearDownClass(cls):
for path in cls.cleanup_paths:
shutil.rmtree(path)
def test_definition_file(self):
return 'gdal_algorithm_tests.yaml'
def testCommandName(self):
# Test that algorithms report a valid commandName
p = QgsApplication.processingRegistry().providerById('gdal')
for a in p.algorithms():
self.assertTrue(a.commandName(), 'Algorithm {} has no commandName!'.format(a.id()))
def testCommandNameInTags(self):
# Test that algorithms commandName is present in provided tags
p = QgsApplication.processingRegistry().providerById('gdal')
for a in p.algorithms():
self.assertTrue(a.commandName() in a.tags(), 'Algorithm {} commandName not found in tags!'.format(a.id()))
def testNoParameters(self):
# Test that algorithms throw QgsProcessingExceptions and not base Python
# exceptions when no parameters specified
p = QgsApplication.processingRegistry().providerById('gdal')
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
for a in p.algorithms():
try:
a.getConsoleCommands({}, context, feedback)
except QgsProcessingException:
pass
def testGetOgrCompatibleSourceFromMemoryLayer(self):
# create a memory layer and add to project and context
layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer",
"testmem", "memory")
self.assertTrue(layer.isValid())
pr = layer.dataProvider()
f = QgsFeature()
f.setAttributes(["test", 123])
f.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100, 200)))
f2 = QgsFeature()
f2.setAttributes(["test2", 457])
f2.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100, 200)))
self.assertTrue(pr.addFeatures([f, f2]))
self.assertEqual(layer.featureCount(), 2)
QgsProject.instance().addMapLayer(layer)
context = QgsProcessingContext()
context.setProject(QgsProject.instance())
alg = QgsApplication.processingRegistry().createAlgorithmById('gdal:buffervectors')
self.assertIsNotNone(alg)
parameters = {'INPUT': 'testmem'}
feedback = QgsProcessingFeedback()
# check that memory layer is automatically saved out to shape when required by GDAL algorithms
ogr_data_path, ogr_layer_name = alg.getOgrCompatibleSource('INPUT', parameters, context, feedback,
executing=True)
self.assertTrue(ogr_data_path)
self.assertTrue(ogr_data_path.endswith('.shp'))
self.assertTrue(os.path.exists(ogr_data_path))
self.assertTrue(ogr_layer_name)
# make sure that layer has correct features
res = QgsVectorLayer(ogr_data_path, 'res')
self.assertTrue(res.isValid())
self.assertEqual(res.featureCount(), 2)
QgsProject.instance().removeMapLayer(layer)
def testGetOgrCompatibleSourceFromOgrLayer(self):
p = QgsProject()
source = os.path.join(testDataPath, 'points.gml')
vl = QgsVectorLayer(source)
self.assertTrue(vl.isValid())
p.addMapLayer(vl)
context = QgsProcessingContext()
context.setProject(p)
feedback = QgsProcessingFeedback()
alg = ogr2ogr()
alg.initAlgorithm()
path, layer = alg.getOgrCompatibleSource('INPUT', {'INPUT': vl.id()}, context, feedback, True)
self.assertEqual(path, source)
path, layer = alg.getOgrCompatibleSource('INPUT', {'INPUT': vl.id()}, context, feedback, False)
self.assertEqual(path, source)
def testGetOgrCompatibleSourceFromFeatureSource(self):
# create a memory layer and add to project and context
layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer",
"testmem", "memory")
self.assertTrue(layer.isValid())
pr = layer.dataProvider()
f = QgsFeature()
f.setAttributes(["test", 123])
f.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100, 200)))
f2 = QgsFeature()
f2.setAttributes(["test2", 457])
f2.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100, 200)))
self.assertTrue(pr.addFeatures([f, f2]))
self.assertEqual(layer.featureCount(), 2)
# select first feature
layer.selectByIds([next(layer.getFeatures()).id()])
self.assertEqual(len(layer.selectedFeatureIds()), 1)
QgsProject.instance().addMapLayer(layer)
context = QgsProcessingContext()
context.setProject(QgsProject.instance())
alg = QgsApplication.processingRegistry().createAlgorithmById('gdal:buffervectors')
self.assertIsNotNone(alg)
parameters = {'INPUT': QgsProcessingFeatureSourceDefinition('testmem', True)}
feedback = QgsProcessingFeedback()
# check that memory layer is automatically saved out to shape when required by GDAL algorithms
ogr_data_path, ogr_layer_name = alg.getOgrCompatibleSource('INPUT', parameters, context, feedback,
executing=True)
self.assertTrue(ogr_data_path)
self.assertTrue(ogr_data_path.endswith('.shp'))
self.assertTrue(os.path.exists(ogr_data_path))
self.assertTrue(ogr_layer_name)
# make sure that layer has only selected feature
res = QgsVectorLayer(ogr_data_path, 'res')
self.assertTrue(res.isValid())
self.assertEqual(res.featureCount(), 1)
QgsProject.instance().removeMapLayer(layer)
def testOgrLayerNameExtraction(self):
outdir = tempfile.mkdtemp()
self.cleanup_paths.append(outdir)
def _copyFile(dst):
shutil.copyfile(os.path.join(testDataPath, 'custom', 'grass7', 'weighted.csv'), dst)
# OGR provider - single layer
_copyFile(os.path.join(outdir, 'a.csv'))
name = GdalUtils.ogrLayerName(outdir)
self.assertEqual(name, 'a')
# OGR provider - multiple layers
_copyFile(os.path.join(outdir, 'b.csv'))
name1 = GdalUtils.ogrLayerName(outdir + '|layerid=0')
name2 = GdalUtils.ogrLayerName(outdir + '|layerid=1')
self.assertEqual(sorted([name1, name2]), ['a', 'b'])
name = GdalUtils.ogrLayerName(outdir + '|layerid=2')
self.assertIsNone(name)
# OGR provider - layername takes precedence
name = GdalUtils.ogrLayerName(outdir + '|layername=f')
self.assertEqual(name, 'f')
name = GdalUtils.ogrLayerName(outdir + '|layerid=0|layername=f')
self.assertEqual(name, 'f')
name = GdalUtils.ogrLayerName(outdir + '|layername=f|layerid=0')
self.assertEqual(name, 'f')
# SQLiite provider
name = GdalUtils.ogrLayerName('dbname=\'/tmp/x.sqlite\' table="t" (geometry) sql=')
self.assertEqual(name, 't')
# PostgreSQL provider
name = GdalUtils.ogrLayerName(
'port=5493 sslmode=disable key=\'edge_id\' srid=0 type=LineString table="city_data"."edge" (geom) sql=')
self.assertEqual(name, 'city_data.edge')
def testOgrConnectionStringAndFormat(self):
context = QgsProcessingContext()
output, outputFormat = GdalUtils.ogrConnectionStringAndFormat('d:/test/test.shp', context)
self.assertEqual(output, 'd:/test/test.shp')
self.assertEqual(outputFormat, '"ESRI Shapefile"')
output, outputFormat = GdalUtils.ogrConnectionStringAndFormat('d:/test/test.mif', context)
self.assertEqual(output, 'd:/test/test.mif')
self.assertEqual(outputFormat, '"MapInfo File"')
def testCrsConversion(self):
self.assertFalse(GdalUtils.gdal_crs_string(QgsCoordinateReferenceSystem()))
self.assertEqual(GdalUtils.gdal_crs_string(QgsCoordinateReferenceSystem('EPSG:3111')), 'EPSG:3111')
self.assertEqual(GdalUtils.gdal_crs_string(QgsCoordinateReferenceSystem('POSTGIS:3111')), 'EPSG:3111')
self.assertEqual(GdalUtils.gdal_crs_string(QgsCoordinateReferenceSystem(
'proj4: +proj=utm +zone=36 +south +a=6378249.145 +b=6356514.966398753 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs')),
'EPSG:20936')
crs = QgsCoordinateReferenceSystem()
crs.createFromProj4(
'+proj=utm +zone=36 +south +a=600000 +b=70000 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs')
self.assertTrue(crs.isValid())
self.assertEqual(GdalUtils.gdal_crs_string(crs),
'+proj=utm +zone=36 +south +a=600000 +b=70000 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs')
def testAssignProjection(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = AssignProjection()
alg.initAlgorithm()
# with target srs
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'CRS': 'EPSG:3111'}, context, feedback),
['gdal_edit.py',
'-a_srs EPSG:3111 ' +
source])
# with target using proj string
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=6378249.145 +b=6356514.966398753 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'CRS': custom_crs}, context, feedback),
['gdal_edit.py',
'-a_srs EPSG:20936 ' +
source])
# with target using custom projection
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'CRS': custom_crs}, context, feedback),
['gdal_edit.py',
'-a_srs "+proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs" ' +
source])
# with non-EPSG crs code
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'CRS': 'POSTGIS:3111'}, context, feedback),
['gdal_edit.py',
'-a_srs EPSG:3111 ' +
source])
def testGdalTranslate(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
translate_alg = translate()
translate_alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with None NODATA value
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'NODATA': None,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-a_nodata 9999.0 ' +
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-a_nodata 0.0 ' +
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with target srs
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'TARGET_CRS': 'EPSG:3111',
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-a_srs EPSG:3111 ' +
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with target using proj string
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=6378249.145 +b=6356514.966398753 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'TARGET_CRS': custom_crs,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-a_srs EPSG:20936 ' +
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with target using custom projection
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'TARGET_CRS': custom_crs,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-a_srs "+proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs" ' +
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with non-EPSG crs code
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'TARGET_CRS': 'POSTGIS:3111',
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-a_srs EPSG:3111 ' +
'-ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with copy subdatasets
self.assertEqual(
translate_alg.getConsoleCommands({'INPUT': source,
'COPY_SUBDATASETS': True,
'OUTPUT': 'd:/temp/check.tif'}, context, feedback),
['gdal_translate',
'-sds ' +
'-ot Float32 -of GTiff ' +
source + ' ' +
'd:/temp/check.tif'])
def testClipRasterByExtent(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = ClipRasterByExtent()
alg.initAlgorithm()
extent = QgsRectangle(1, 2, 3, 4)
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'EXTENT': extent,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-projwin 0.0 0.0 0.0 0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'EXTENT': extent,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-projwin 0.0 0.0 0.0 0.0 -a_nodata 9999.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'EXTENT': extent,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_translate',
'-projwin 0.0 0.0 0.0 0.0 -a_nodata 0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
def testClipRasterByMask(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
mask = os.path.join(testDataPath, 'polys.gml')
alg = ClipRasterByMask()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'MASK': mask,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdalwarp',
'-ot Float32 -of JPEG -cutline ' +
mask + ' -crop_to_cutline ' + source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'MASK': mask,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdalwarp',
'-ot Float32 -of JPEG -cutline ' +
mask + ' -crop_to_cutline -dstnodata 9999.0 ' + source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'MASK': mask,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdalwarp',
'-ot Float32 -of JPEG -cutline ' +
mask + ' -crop_to_cutline -dstnodata 0.0 ' + source + ' ' +
'd:/temp/check.jpg'])
def testContour(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = contour()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'BAND': 1,
'FIELD_NAME': 'elev',
'INTERVAL': 5,
'OUTPUT': 'd:/temp/check.shp'}, context, feedback),
['gdal_contour',
'-b 1 -a elev -i 5.0 -f "ESRI Shapefile" ' +
source + ' ' +
'd:/temp/check.shp'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'BAND': 1,
'FIELD_NAME': 'elev',
'INTERVAL': 5,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.shp'}, context, feedback),
['gdal_contour',
'-b 1 -a elev -i 5.0 -snodata 9999.0 -f "ESRI Shapefile" ' +
source + ' ' +
'd:/temp/check.shp'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'BAND': 1,
'FIELD_NAME': 'elev',
'INTERVAL': 5,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.gpkg'}, context, feedback),
['gdal_contour',
'-b 1 -a elev -i 5.0 -snodata 0.0 -f "GPKG" ' +
source + ' ' +
'd:/temp/check.gpkg'])
def testGdal2Tiles(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = gdal2tiles()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average ' +
source + ' ' +
'd:/temp/'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': -9999,
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average -a -9999.0 ' +
source + ' ' +
'd:/temp/'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 0,
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average -a 0.0 ' +
source + ' ' +
'd:/temp/'])
# with input srs
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'SOURCE_CRS': 'EPSG:3111',
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average -s EPSG:3111 ' +
source + ' ' +
'd:/temp/'])
# with target using proj string
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=6378249.145 +b=6356514.966398753 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'SOURCE_CRS': custom_crs,
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average -s EPSG:20936 ' +
source + ' ' +
'd:/temp/'])
# with target using custom projection
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'SOURCE_CRS': custom_crs,
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average -s "+proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs" ' +
source + ' ' +
'd:/temp/'])
# with non-EPSG crs code
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'SOURCE_CRS': 'POSTGIS:3111',
'OUTPUT': 'd:/temp/'}, context, feedback),
['gdal2tiles.py',
'-p mercator -w all -r average -s EPSG:3111 ' +
source + ' ' +
'd:/temp/'])
def testGdalCalc(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = gdalcalc()
alg.initAlgorithm()
output = 'd:/temp/check.jpg'
# default execution
formula = 'A*2' # default formula
self.assertEqual(
alg.getConsoleCommands({
'INPUT_A': source,
'BAND_A': 1,
'FORMULA': formula,
'BAND_D': -1,
'NO_DATA': None,
'BAND_F': -1,
'BAND_B': -1,
'EXTRA': '',
'RTYPE': 5,
'INPUT_F': None,
'BAND_E': -1,
'INPUT_D': None,
'INPUT_B': None,
'BAND_C': -1,
'INPUT_E': None,
'INPUT_C': None,
'OUTPUT': output}, context, feedback),
['gdal_calc', '--calc "{}" --format JPEG --type Float32 -A {} --A_band 1 --outfile {}'.format(formula, source, output)])
# check that formula is not escaped and formula is returned as it is
formula = 'A * 2' # <--- add spaces in the formula
self.assertEqual(
alg.getConsoleCommands({
'INPUT_A': source,
'BAND_A': 1,
'FORMULA': formula,
'BAND_D': -1,
'NO_DATA': None,
'BAND_F': -1,
'BAND_B': -1,
'EXTRA': '',
'RTYPE': 5,
'INPUT_F': None,
'BAND_E': -1,
'INPUT_D': None,
'INPUT_B': None,
'BAND_C': -1,
'INPUT_E': None,
'INPUT_C': None,
'OUTPUT': output}, context, feedback),
['gdal_calc', '--calc "{}" --format JPEG --type Float32 -A {} --A_band 1 --outfile {}'.format(formula, source, output)])
def testBuildVrt(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = buildvrt()
alg.initAlgorithm()
commands = alg.getConsoleCommands({'LAYERS': [source],
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertNotIn('-a_srs', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
commands = alg.getConsoleCommands({'LAYERS': [source],
'RESOLUTION': 2,
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution lowest', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertNotIn('-a_srs', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
commands = alg.getConsoleCommands({'LAYERS': [source],
'SEPARATE': False,
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-separate', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertNotIn('-a_srs', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
commands = alg.getConsoleCommands({'LAYERS': [source],
'PROJ_DIFFERENCE': True,
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertIn('-allow_projection_difference', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertNotIn('-a_srs', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
commands = alg.getConsoleCommands({'LAYERS': [source],
'ADD_ALPHA': True,
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertNotIn('-a_srs', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
commands = alg.getConsoleCommands({'LAYERS': [source],
'ASSIGN_CRS': 'EPSG:3111',
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertIn('-a_srs EPSG:3111', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=6378249.145 +b=6356514.966398753 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
commands = alg.getConsoleCommands({'LAYERS': [source],
'ASSIGN_CRS': custom_crs,
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertIn('-a_srs EPSG:20936', commands[1])
self.assertIn('-r nearest', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
commands = alg.getConsoleCommands({'LAYERS': [source],
'RESAMPLING': 4,
'OUTPUT': 'd:/temp/test.vrt'}, context, feedback)
self.assertEqual(len(commands), 2)
self.assertEqual(commands[0], 'gdalbuildvrt')
self.assertIn('-resolution average', commands[1])
self.assertIn('-separate', commands[1])
self.assertNotIn('-allow_projection_difference', commands[1])
self.assertNotIn('-add_alpha', commands[1])
self.assertNotIn('-a_srs', commands[1])
self.assertIn('-r lanczos', commands[1])
self.assertIn('-input_file_list', commands[1])
self.assertIn('d:/temp/test.vrt', commands[1])
def testGdalTindex(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'dem.tif')
alg = gdaltindex()
alg.initAlgorithm()
self.assertEqual(
alg.getConsoleCommands({'LAYERS': [source],
'OUTPUT': 'd:/temp/test.shp'}, context, feedback),
['gdaltindex',
'-tileindex location -f "ESRI Shapefile" ' +
'd:/temp/test.shp ' +
source])
# with input srs
self.assertEqual(
alg.getConsoleCommands({'LAYERS': [source],
'TARGET_CRS': 'EPSG:3111',
'OUTPUT': 'd:/temp/test.shp'}, context, feedback),
['gdaltindex',
'-tileindex location -t_srs EPSG:3111 -f "ESRI Shapefile" ' +
'd:/temp/test.shp ' +
source])
# with target using proj string
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=6378249.145 +b=6356514.966398753 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
alg.getConsoleCommands({'LAYERS': [source],
'TARGET_CRS': custom_crs,
'OUTPUT': 'd:/temp/test.shp'}, context, feedback),
['gdaltindex',
'-tileindex location -t_srs EPSG:20936 -f "ESRI Shapefile" ' +
'd:/temp/test.shp ' +
source])
# with target using custom projection
custom_crs = 'proj4: +proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs'
self.assertEqual(
alg.getConsoleCommands({'LAYERS': [source],
'TARGET_CRS': custom_crs,
'OUTPUT': 'd:/temp/test.shp'}, context, feedback),
['gdaltindex',
'-tileindex location -t_srs "+proj=utm +zone=36 +south +a=63785 +b=6357 +towgs84=-143,-90,-294,0,0,0,0 +units=m +no_defs" -f "ESRI Shapefile" ' +
'd:/temp/test.shp ' +
source])
# with non-EPSG crs code
self.assertEqual(
alg.getConsoleCommands({'LAYERS': [source],
'TARGET_CRS': 'POSTGIS:3111',
'OUTPUT': 'd:/temp/test.shp'}, context, feedback),
['gdaltindex',
'-tileindex location -t_srs EPSG:3111 -f "ESRI Shapefile" ' +
'd:/temp/test.shp ' +
source])
def testGridAverage(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'points.gml')
alg = GridAverage()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a average:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a average:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=9999.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a average:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
def testGridDataMetrics(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'points.gml')
alg = GridDataMetrics()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a minimum:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a minimum:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=9999.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a minimum:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
def testGridInverseDistance(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'points.gml')
alg = GridInverseDistance()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a invdist:power=2.0:smothing=0.0:radius1=0.0:radius2=0.0:angle=0.0:max_points=0:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a invdist:power=2.0:smothing=0.0:radius1=0.0:radius2=0.0:angle=0.0:max_points=0:min_points=0:nodata=9999.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a invdist:power=2.0:smothing=0.0:radius1=0.0:radius2=0.0:angle=0.0:max_points=0:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
def testGridInverseDistanceNearestNeighbour(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'points.gml')
alg = GridInverseDistanceNearestNeighbor()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a invdistnn:power=2.0:smothing=0.0:radius=1.0:max_points=12:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 9999,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a invdistnn:power=2.0:smothing=0.0:radius=1.0:max_points=12:min_points=0:nodata=9999.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with "0" NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'NODATA': 0,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a invdistnn:power=2.0:smothing=0.0:radius=1.0:max_points=12:min_points=0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
def testGridLinear(self):
context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
source = os.path.join(testDataPath, 'points.gml')
alg = GridLinear()
alg.initAlgorithm()
# with no NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,
'OUTPUT': 'd:/temp/check.jpg'}, context, feedback),
['gdal_grid',
'-l points -a linear:radius=-1.0:nodata=0.0 -ot Float32 -of JPEG ' +
source + ' ' +
'd:/temp/check.jpg'])
# with NODATA value
self.assertEqual(
alg.getConsoleCommands({'INPUT': source,