本文整理汇总了Python中qgis.core.QgsProcessingParameterString类的典型用法代码示例。如果您正苦于以下问题：Python QgsProcessingParameterString类的具体用法？Python QgsProcessingParameterString怎么用？Python QgsProcessingParameterString使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了QgsProcessingParameterString类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(
QgsProcessingParameterFeatureSource(
self.INPUT,
self.tr('Input Point Layer'),
[QgsProcessing.TypeVectorPoint]
)
)
self.addParameter(
QgsProcessingParameterRasterLayer(
self.RASTERCOPY,
self.tr('Raster Layer to sample'),
)
)
columnPrefix = QgsProcessingParameterString(
self.COLUMN_PREFIX,
self.tr('Output column prefix'), 'rvalue'
)
columnPrefix.setFlags(columnPrefix.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(columnPrefix)
self.addParameter(
QgsProcessingParameterFeatureSink(
self.OUTPUT,
self.tr('Sampled Points')
)
)示例2: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT, self.tr('Input layer')))
self.addParameter(QgsProcessingParameterNumber(self.OUTSIZE,
self.tr('Set the size of the output file (In pixels or %)'),
minValue=1, defaultValue=100))
self.addParameter(QgsProcessingParameterBoolean(self.OUTSIZE_PERC,
self.tr('Output size is a percentage of input size'), defaultValue=True))
self.addParameter(QgsProcessingParameterString(self.NO_DATA,
self.tr("Nodata value, leave blank to take the nodata value from input"),
defaultValue='', optional=True))
self.addParameter(QgsProcessingParameterEnum(self.EXPAND,
self.tr('Expand'), options=['none', 'gray', 'rgb', 'rgba'], defaultValue=0))
self.addParameter(QgsProcessingParameterCrs(self.SRS,
self.tr('Output projection for output file [leave blank to use input projection]'), defaultValue=None, optional=True))
self.addParameter(QgsProcessingParameterExtent(self.PROJWIN,
self.tr('Subset based on georeferenced coordinates'), optional=True))
self.addParameter(QgsProcessingParameterBoolean(self.SDS,
self.tr('Copy all subdatasets of this file to individual output files'),
defaultValue=False))
create_options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'),
optional=True)
create_options_param.setMetadata({'widget_wrapper': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'})
self.addParameter(create_options_param)
self.addParameter(QgsProcessingParameterEnum(self.RTYPE,
self.tr('Output raster type'),
options=self.TYPE, defaultValue=5))
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr('Converted')))示例3: initAlgorithm
def initAlgorithm(self, config=None):
db_param = QgsProcessingParameterString(
self.DATABASE,
self.tr('Database (connection name)'))
db_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.ConnectionWidgetWrapper'}})
self.addParameter(db_param)
self.addParameter(QgsProcessingParameterString(
self.SQL,
self.tr('SQL query'),
multiLine=True))
self.addParameter(QgsProcessingParameterString(
self.ID_FIELD,
self.tr('Unique ID field name'),
defaultValue='id'))
self.addParameter(QgsProcessingParameterString(
self.GEOMETRY_FIELD,
self.tr('Geometry field name'),
defaultValue='geom',
optional=True))
self.addOutput(QgsProcessingOutputVectorLayer(
self.OUTPUT,
self.tr("Output layer"),
QgsProcessing.TypeVectorAnyGeometry))示例4: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
self.tr('Input layer')))
self.addParameter(QgsProcessingParameterString(self.GEOMETRY,
self.tr('Geometry column name'),
defaultValue='geometry'))
self.addParameter(QgsProcessingParameterDistance(self.DISTANCE,
self.tr('Buffer distance'),
parentParameterName=self.INPUT,
minValue=0.0,
defaultValue=10.0))
self.addParameter(QgsProcessingParameterField(self.FIELD,
self.tr('Dissolve by attribute'),
None,
self.INPUT,
QgsProcessingParameterField.Any,
optional=True))
self.addParameter(QgsProcessingParameterBoolean(self.DISSOLVE,
self.tr('Dissolve all results'),
defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.EXPLODE_COLLECTIONS,
self.tr('Produce one feature for each geometry in any kind of geometry collection in the source file'),
defaultValue=False))
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'),
defaultValue='',
optional=True)
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(options_param)
self.addParameter(QgsProcessingParameterVectorDestination(self.OUTPUT,
self.tr('Buffer'),
QgsProcessing.TypeVectorPolygon))示例5: initAlgorithm
def initAlgorithm(self, config=None):
class ParameterVrtDestination(QgsProcessingParameterRasterDestination):
def __init__(self, name, description):
super().__init__(name, description)
def clone(self):
copy = ParameterVrtDestination(self.name(), self.description())
return copy
def type(self):
return 'vrt_destination'
def defaultFileExtension(self):
return 'vrt'
self.addParameter(QgsProcessingParameterMultipleLayers(self.INPUT,
self.tr('Input layers'),
QgsProcessing.TypeRaster))
self.addParameter(QgsProcessingParameterEnum(self.RESOLUTION,
self.tr('Resolution'),
options=self.RESOLUTION_OPTIONS,
defaultValue=0))
self.addParameter(QgsProcessingParameterBoolean(self.SEPARATE,
self.tr('Place each input file into a separate band'),
defaultValue=True))
self.addParameter(QgsProcessingParameterBoolean(self.PROJ_DIFFERENCE,
self.tr('Allow projection difference'),
defaultValue=False))
add_alpha_param = QgsProcessingParameterBoolean(self.ADD_ALPHA,
self.tr('Add alpha mask band to VRT when source raster has none'),
defaultValue=False)
add_alpha_param.setFlags(add_alpha_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(add_alpha_param)
assign_crs = QgsProcessingParameterCrs(self.ASSIGN_CRS,
self.tr('Override projection for the output file'),
defaultValue=None, optional=True)
assign_crs.setFlags(assign_crs.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(assign_crs)
resampling = QgsProcessingParameterEnum(self.RESAMPLING,
self.tr('Resampling algorithm'),
options=self.RESAMPLING_OPTIONS,
defaultValue=0)
resampling.setFlags(resampling.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(resampling)
src_nodata_param = QgsProcessingParameterString(self.SRC_NODATA,
self.tr('Nodata value(s) for input bands (space separated)'),
defaultValue=None,
optional=True)
src_nodata_param.setFlags(src_nodata_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(src_nodata_param)
self.addParameter(ParameterVrtDestination(self.OUTPUT, QCoreApplication.translate("ParameterVrtDestination", 'Virtual')))示例6: initAlgorithm
def initAlgorithm(self, config=None):
db_param = QgsProcessingParameterString(
self.DATABASE,
self.tr('Database (connection name)'))
db_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.ConnectionWidgetWrapper'}})
self.addParameter(db_param)
self.addParameter(QgsProcessingParameterString(self.SQL, self.tr('SQL query'), multiLine=True))示例7: initAlgorithm
def initAlgorithm(self, config=None):
"""Here we define the inputs and output of the algorithm, along
with some other properties.
"""
# The parameters
self.addParameter(
QgsProcessingParameterExtent(self.EXTENT, description=self.tr(
'Minimum extent to render')))
self.addParameter(
QgsProcessingParameterNumber(
self.TILE_SIZE,
self.tr('Tile size'),
defaultValue=1024, minValue=64))
self.addParameter(QgsProcessingParameterNumber(
self.MAP_UNITS_PER_PIXEL,
self.tr(
'Map units per '
'pixel'),
defaultValue=100,
minValue=0,
type=QgsProcessingParameterNumber.Double
))
self.addParameter(
QgsProcessingParameterBoolean(
self.MAKE_BACKGROUND_TRANSPARENT,
self.tr('Make background transparent'),
defaultValue=False))
map_theme_param = QgsProcessingParameterString(
self.MAP_THEME,
description=self.tr(
'Map theme to render'),
defaultValue=None, optional=True)
map_theme_param.setMetadata(
{'widget_wrapper': {
'class':
'processing.gui.wrappers_map_theme.MapThemeWrapper'}})
self.addParameter(map_theme_param)
self.addParameter(
QgsProcessingParameterMapLayer(
self.LAYER,
description=self.tr(
'Single layer to render'),
optional=True))
# We add a raster layer as output
self.addParameter(QgsProcessingParameterRasterDestination(
self.OUTPUT,
self.tr(
'Output layer')))示例8: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT,
self.tr('Input layer')))
self.addParameter(QgsProcessingParameterBand(self.BAND,
self.tr('Band number'),
1,
parentLayerParameterName=self.INPUT))
self.addParameter(QgsProcessingParameterNumber(self.INTERVAL,
self.tr('Interval between contour lines'),
type=QgsProcessingParameterNumber.Double,
minValue=0.0,
defaultValue=10.0))
self.addParameter(QgsProcessingParameterString(self.FIELD_NAME,
self.tr('Attribute name (if not set, no elevation attribute is attached)'),
defaultValue='ELEV',
optional=True))
create_3d_param = QgsProcessingParameterBoolean(self.CREATE_3D,
self.tr('Produce 3D vector'),
defaultValue=False)
create_3d_param.setFlags(create_3d_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(create_3d_param)
ignore_nodata_param = QgsProcessingParameterBoolean(self.IGNORE_NODATA,
self.tr('Treat all raster values as valid'),
defaultValue=False)
ignore_nodata_param.setFlags(ignore_nodata_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(ignore_nodata_param)
nodata_param = QgsProcessingParameterNumber(self.NODATA,
self.tr('Input pixel value to treat as "nodata"'),
type=QgsProcessingParameterNumber.Double,
defaultValue=None,
optional=True)
nodata_param.setFlags(nodata_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(nodata_param)
offset_param = QgsProcessingParameterNumber(self.OFFSET,
self.tr('Offset from zero relative to which to interpret intervals'),
type=QgsProcessingParameterNumber.Double,
defaultValue=0.0,
optional=True)
nodata_param.setFlags(offset_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(offset_param)
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'),
defaultValue='',
optional=True)
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(options_param)
self.addParameter(QgsProcessingParameterVectorDestination(
self.OUTPUT, self.tr('Contours'), QgsProcessing.TypeVectorLine))示例9: __init__
def __init__(self):
super().__init__()
db_param = QgsProcessingParameterString(
self.DATABASE,
self.tr('Database (connection name)'))
db_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.ConnectionWidgetWrapper'}})
self.addParameter(db_param)
self.addParameter(QgsProcessingParameterString(self.SQL, self.tr('SQL query')))示例10: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
self.tr('Input layer')))
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'),
defaultValue='',
optional=True)
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(options_param)
self.addParameter(QgsProcessingParameterVectorDestination(self.OUTPUT,
self.tr('Converted')))示例11: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(
QgsProcessingParameterString(
self.QUERY, tr('Query'), optional=False, multiLine=True))
self.addParameter(
QgsProcessingParameterExtent(
self.EXTENT, tr('Extent, if "{{bbox}}" in the query'), optional=True))
server = get_setting('defaultOAPI', OVERPASS_SERVERS[0]) + 'interpreter'
parameter = QgsProcessingParameterString(
self.SERVER, tr('Overpass server'), optional=False, defaultValue=server)
parameter.setFlags(parameter.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(parameter)
parameter = QgsProcessingParameterString(
self.AREA,
tr('Area (if you want to override {{geocodeArea}} in the query'),
optional=True)
parameter.setFlags(parameter.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(parameter)
self.addOutput(
QgsProcessingOutputString(
self.OUTPUT_URL, tr('Query as encoded URL')))
self.addOutput(
QgsProcessingOutputString(
self.OUTPUT_OQL_QUERY, tr('Raw query as OQL')))示例12: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
self.tr('Layer to import'),
types=[QgsProcessing.TypeVector]))
db_param = QgsProcessingParameterString(
self.DATABASE,
self.tr('Database (connection name)'))
db_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.ConnectionWidgetWrapper'}})
self.addParameter(db_param)
schema_param = QgsProcessingParameterString(
self.SCHEMA,
self.tr('Schema (schema name)'), 'public', False, True)
schema_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.SchemaWidgetWrapper',
'connection_param': self.DATABASE}})
self.addParameter(schema_param)
table_param = QgsProcessingParameterString(
self.TABLENAME,
self.tr('Table to import to (leave blank to use layer name)'), '', False, True)
table_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.TableWidgetWrapper',
'schema_param': self.SCHEMA}})
self.addParameter(table_param)
self.addParameter(QgsProcessingParameterField(self.PRIMARY_KEY,
self.tr('Primary key field'), None, self.INPUT,
QgsProcessingParameterField.Any, False, True))
self.addParameter(QgsProcessingParameterString(self.GEOMETRY_COLUMN,
self.tr('Geometry column'), 'geom'))
self.addParameter(QgsProcessingParameterString(self.ENCODING,
self.tr('Encoding'), 'UTF-8',
False, True))
self.addParameter(QgsProcessingParameterBoolean(self.OVERWRITE,
self.tr('Overwrite'), True))
self.addParameter(QgsProcessingParameterBoolean(self.CREATEINDEX,
self.tr('Create spatial index'), True))
self.addParameter(QgsProcessingParameterBoolean(self.LOWERCASE_NAMES,
self.tr('Convert field names to lowercase'), True))
self.addParameter(QgsProcessingParameterBoolean(self.DROP_STRING_LENGTH,
self.tr('Drop length constraints on character fields'), False))
self.addParameter(QgsProcessingParameterBoolean(self.FORCE_SINGLEPART,
self.tr('Create single-part geometries instead of multi-part'),
False))示例13: initAlgorithm
def initAlgorithm(self, config=None):
self.formats = ((self.tr('Auto'), 'AUTO'),
(self.tr('Well-known text (WKT)'), 'WKT'),
(self.tr('EPSG'), 'EPSG'),
(self.tr('Proj.4'), 'PROJ'))
self.addParameter(QgsProcessingParameterMultipleLayers(self.LAYERS,
self.tr('Input files'),
QgsProcessing.TypeRaster))
self.addParameter(QgsProcessingParameterString(self.PATH_FIELD_NAME,
self.tr('Field name to hold the file path to the indexed rasters'),
defaultValue='location'))
self.addParameter(QgsProcessingParameterBoolean(self.ABSOLUTE_PATH,
self.tr('Store absolute path to the indexed rasters'),
defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.PROJ_DIFFERENCE,
self.tr('Skip files with different projection reference'),
defaultValue=False))
target_crs_param = QgsProcessingParameterCrs(self.TARGET_CRS,
self.tr('Transform geometries to the given CRS'),
optional=True)
target_crs_param.setFlags(target_crs_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(target_crs_param)
crs_field_param = QgsProcessingParameterString(self.CRS_FIELD_NAME,
self.tr('The name of the field to store the SRS of each tile'),
optional=True)
crs_field_param.setFlags(crs_field_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(crs_field_param)
crs_format_param = QgsProcessingParameterEnum(self.CRS_FORMAT,
self.tr('The format in which the CRS of each tile must be written'),
options=[i[0] for i in self.formats],
allowMultiple=False,
defaultValue=0)
crs_format_param.setFlags(crs_format_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(crs_format_param)
self.addParameter(QgsProcessingParameterVectorDestination(self.OUTPUT,
self.tr('Tile index'),
QgsProcessing.TypeVectorPolygon))示例14: initAlgorithm
def initAlgorithm(self, config=None):
self.bufferSides = [self.tr('Right'), self.tr('Left')]
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
self.tr('Input layer'),
[QgsProcessing.TypeVectorLine]))
self.addParameter(QgsProcessingParameterString(self.GEOMETRY,
self.tr('Geometry column name'),
defaultValue='geometry'))
self.addParameter(QgsProcessingParameterNumber(self.DISTANCE,
self.tr('Buffer distance'),
type=QgsProcessingParameterNumber.Double,
defaultValue=10))
self.addParameter(QgsProcessingParameterEnum(self.BUFFER_SIDE,
self.tr('Buffer side'),
options=self.bufferSides,
allowMultiple=False,
defaultValue=0))
self.addParameter(QgsProcessingParameterField(self.FIELD,
self.tr('Dissolve by attribute'),
None,
self.INPUT,
QgsProcessingParameterField.Any,
optional=True))
self.addParameter(QgsProcessingParameterBoolean(self.DISSOLVE,
self.tr('Dissolve all results'),
defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.EXPLODE_COLLECTIONS,
self.tr('Produce one feature for each geometry in any kind of geometry collection in the source file'),
defaultValue=False))
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'),
defaultValue='',
optional=True)
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(options_param)
self.addParameter(QgsProcessingParameterVectorDestination(self.OUTPUT,
self.tr('One-sided buffer'),
QgsProcessing.TypeVectorPolygon))示例15: initAlgorithm
def initAlgorithm(self, config=None):
self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT,
self.tr('Input layer')))
self.addParameter(QgsProcessingParameterExtent(self.EXTENT,
self.tr('Clipping extent')))
self.addParameter(QgsProcessingParameterNumber(self.NODATA,
self.tr('Assign a specified nodata value to output bands'),
type=QgsProcessingParameterNumber.Double,
defaultValue=None,
optional=True))
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'),
defaultValue='',
optional=True)
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
options_param.setMetadata({
'widget_wrapper': {
'class': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}})
self.addParameter(options_param)
dataType_param = QgsProcessingParameterEnum(self.DATA_TYPE,
self.tr('Output data type'),
self.TYPES,
allowMultiple=False,
defaultValue=0)
dataType_param.setFlags(dataType_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(dataType_param)
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
self.tr('Clipped (extent)')))