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Faster command generation in gdal algorithm dialog, by skipping forced incompatible layer exports

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This commit is contained in:
Nyall Dawson 2017-12-08 14:50:03 +10:00
parent 96c7e6e0a6
commit be962c7d8b
18 changed files with 45 additions and 31 deletions
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2
python/plugins/processing/algs/gdal/Buffer.py
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@ -100,7 +100,7 @@ class Buffer(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
fields = self.parameterAsSource(parameters, self.INPUT, context).fields()
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
geometry = self.parameterAsString(parameters, self.GEOMETRY, context)
distance = self.parameterAsDouble(parameters, self.DISTANCE, context)
fieldName = self.parameterAsString(parameters, self.FIELD, context)

2
python/plugins/processing/algs/gdal/ClipRasterByMask.py
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@ -119,7 +119,7 @@ class ClipRasterByMask(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
maskLayer, maskLayerName = self.getOgrCompatibleSource(self.MASK, parameters, context, feedback)
maskLayer, maskLayerName = self.getOgrCompatibleSource(self.MASK, parameters, context, feedback, executing)
nodata = self.parameterAsDouble(parameters, self.NODATA, context)
options = self.parameterAsString(parameters, self.OPTIONS, context)

2
python/plugins/processing/algs/gdal/ClipVectorByExtent.py
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@ -75,7 +75,7 @@ class ClipVectorByExtent(GdalAlgorithm):
return 'ogr2ogr'
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
source = self.parameterAsSource(parameters, self.INPUT, context)
extent = self.parameterAsExtent(parameters, self.EXTENT, context, source.sourceCrs())
options = self.parameterAsString(parameters, self.OPTIONS, context)

4
python/plugins/processing/algs/gdal/ClipVectorByMask.py
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@ -74,8 +74,8 @@ class ClipVectorByMask(GdalAlgorithm):
return 'ogr2ogr'
def getConsoleCommands(self, parameters, context, feedback, executing=True):
inLayer, inLayerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
maskLayer, maskLayerName = self.getOgrCompatibleSource(self.MASK, parameters, context, feedback)
inLayer, inLayerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
maskLayer, maskLayerName = self.getOgrCompatibleSource(self.MASK, parameters, context, feedback, executing)
options = self.parameterAsString(parameters, self.OPTIONS, context)
outFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)

2
python/plugins/processing/algs/gdal/Dissolve.py
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@ -111,7 +111,7 @@ class Dissolve(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
fields = self.parameterAsSource(parameters, self.INPUT, context).fields()
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
geometry = self.parameterAsString(parameters, self.GEOMETRY, context)
fieldName = self.parameterAsString(parameters, self.FIELD, context)

2
python/plugins/processing/algs/gdal/ExecuteSql.py
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@ -83,7 +83,7 @@ class ExecuteSql(GdalAlgorithm):
return self.tr('Vector miscellaneous')
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
sql = self.parameterAsString(parameters, self.SQL, context)
options = self.parameterAsString(parameters, self.OPTIONS, context)
outFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)

16
python/plugins/processing/algs/gdal/GdalAlgorithm.py
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@ -62,27 +62,41 @@ class GdalAlgorithm(QgsProcessingAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
return None
def getOgrCompatibleSource(self, parameter_name, parameters, context, feedback):
def getOgrCompatibleSource(self, parameter_name, parameters, context, feedback, executing):
"""
Interprets a parameter as an OGR compatible source and layer name
:param executing:
"""
input_layer = self.parameterAsVectorLayer(parameters, parameter_name, context)
ogr_data_path = None
ogr_layer_name = None
if input_layer is None:
if executing:
# parameter is not a vector layer - try to convert to a source compatible with OGR
# and extract selection if required
ogr_data_path = self.parameterAsCompatibleSourceLayerPath(parameters, parameter_name, context,
QgsVectorFileWriter.supportedFormatExtensions(),
feedback=feedback)
ogr_layer_name = GdalUtils.ogrLayerName(ogr_data_path)
else:
#not executing - don't waste time converting incompatible sources, just return dummy strings
#for the command preview (since the source isn't compatible with OGR, it has no meaning anyway and can't
#be run directly in the command line)
ogr_data_path = 'path_to_data_file'
ogr_layer_name = 'layer_name'
elif input_layer.dataProvider().name() == 'ogr':
if executing:
# parameter is a vector layer, with OGR data provider
# so extract selection if required
ogr_data_path = self.parameterAsCompatibleSourceLayerPath(parameters, parameter_name, context,
QgsVectorFileWriter.supportedFormatExtensions(),
feedback=feedback)
ogr_layer_name = GdalUtils.ogrLayerName(input_layer.dataProvider().dataSourceUri())
else:
#not executing - don't worry about 'selected features only' handling. It has no meaning
#for the command line preview since it has no meaning outside of a QGIS session!
ogr_data_path = GdalUtils.ogrConnectionString(input_layer.dataProvider().dataSourceUri(), context)[1:-1]
ogr_layer_name = GdalUtils.ogrLayerName(input_layer.dataProvider().dataSourceUri())
else:
# vector layer, but not OGR - get OGR compatible path
# TODO - handle "selected features only" mode!!

2
python/plugins/processing/algs/gdal/GridAverage.py
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@ -136,7 +136,7 @@ class GridAverage(GdalAlgorithm):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)

2
python/plugins/processing/algs/gdal/GridDataMetrics.py
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@ -150,7 +150,7 @@ class GridDataMetrics(GdalAlgorithm):
return self.tr('Raster analysis')
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)

2
python/plugins/processing/algs/gdal/GridInverseDistance.py
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@ -156,7 +156,7 @@ class GridInverseDistance(GdalAlgorithm):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)

2
python/plugins/processing/algs/gdal/GridInverseDistanceNearestNeighbor.py
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@ -143,7 +143,7 @@ class GridInverseDistanceNearestNeighbor(GdalAlgorithm):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)

2
python/plugins/processing/algs/gdal/GridLinear.py
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@ -118,7 +118,7 @@ class GridLinear(GdalAlgorithm):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)

2
python/plugins/processing/algs/gdal/GridNearestNeighbor.py
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@ -131,7 +131,7 @@ class GridNearestNeighbor(GdalAlgorithm):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)

2
python/plugins/processing/algs/gdal/OffsetCurve.py
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@ -83,7 +83,7 @@ class OffsetCurve(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
fields = self.parameterAsSource(parameters, self.INPUT, context).fields()
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
geometry = self.parameterAsString(parameters, self.GEOMETRY, context)
distance = self.parameterAsDouble(parameters, self.DISTANCE, context)
options = self.parameterAsString(parameters, self.OPTIONS, context)

2
python/plugins/processing/algs/gdal/OgrToPostGis.py
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@ -186,7 +186,7 @@ class OgrToPostGis(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
inLayer = self.parameterAsSource(parameters, self.INPUT, context)
ogrLayer, layername = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layername = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
shapeEncoding = self.parameterAsString(parameters, self.SHAPE_ENCODING, context)
ssrs = self.parameterAsCrs(parameters, self.S_SRS, context).authid()
tsrs = self.parameterAsCrs(parameters, self.T_SRS, context).authid()

2
python/plugins/processing/algs/gdal/OneSideBuffer.py
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@ -109,7 +109,7 @@ class OneSideBuffer(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
fields = self.parameterAsSource(parameters, self.INPUT, context).fields()
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
geometry = self.parameterAsString(parameters, self.GEOMETRY, context)
distance = self.parameterAsDouble(parameters, self.DISTANCE, context)
side = self.parameterAsEnum(parameters, self.BUFFER_SIDE, context)

2
python/plugins/processing/algs/gdal/PointsAlongLines.py
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@ -88,7 +88,7 @@ class PointsAlongLines(GdalAlgorithm):
def getConsoleCommands(self, parameters, context, feedback, executing=True):
fields = self.parameterAsSource(parameters, self.INPUT, context).fields()
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
distance = self.parameterAsDouble(parameters, self.DISTANCE, context)
geometry = self.parameterAsString(parameters, self.GEOMETRY, context)
outFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)

2
python/plugins/processing/algs/gdal/ogr2ogr.py
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@ -72,7 +72,7 @@ class ogr2ogr(GdalAlgorithm):
return 'ogr2ogr'
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback)
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
options = self.parameterAsString(parameters, self.OPTIONS, context)
outFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)