Class: QgsProcessingParameterDxfLayers

class qgis.core.QgsProcessingParameterDxfLayers

Bases: QgsProcessingParameterDefinition

A parameter for Processing algorithms that need a list of input vector layers to export as DXF file - this parameter provides Processing framework’s adapter for QList<QgsDxfExport.DxfLayer>.

A valid value for this parameter is a list (QVariantList), where each item is a map (QVariantMap) in this form: { ‘layer’: string or QgsMapLayer, ‘attributeIndex’: int }

Also it can accept lists (either string lists or QgsVectorLayer list) as well as individual layer object or string representing layer source.

Static functions parametersAsLayers(), variantMapAsLayer(), layerAsVariantMap() provide conversion between QgsDxfExport.DxfLayer representation and QVariant representation.

New in version 3.18.

QgsProcessingParameterDxfLayers(name: str, description: str = ‘’) Constructor for QgsProcessingParameterDxfLayers.

QgsProcessingParameterDxfLayers(QgsProcessingParameterDxfLayers)

Methods

asPythonString	param outputType
checkValueIsAcceptable	param input
clone	rtype QgsProcessingParameterDefinition
layerAsVariantMap	Converts a single input layer to QVariant representation (a QVariantMap)
parameterAsLayers	Converts a QVariant value (a QVariantList) to a list of input layers
type	rtype str
typeName	Returns the type name for the parameter class.
valueAsPythonString	param value
variantMapAsLayer	Converts a QVariant value (a QVariantMap) to a single input layer

asPythonString(self, outputType: QgsProcessing.PythonOutputType = QgsProcessing.PythonQgsProcessingAlgorithmSubclass) → str

Parameters

outputType (QgsProcessing.PythonOutputType = QgsProcessing.PythonQgsProcessingAlgorithmSubclass) –

Return type

str

checkValueIsAcceptable(self, input: Any, context: QgsProcessingContext = None) → bool

Parameters

• input (Any) –

• context (QgsProcessingContext = None) –

Return type

bool

clone(self) → QgsProcessingParameterDefinition

Return type

QgsProcessingParameterDefinition

layerAsVariantMap(layer: QgsDxfExport.DxfLayer) → Dict[str, Any]

Converts a single input layer to QVariant representation (a QVariantMap)

Parameters

layer (QgsDxfExport.DxfLayer) –

Return type

Dict[str, Any]

parameterAsLayers(layersVariant: Any, context: QgsProcessingContext) → List[QgsDxfExport.DxfLayer]

Converts a QVariant value (a QVariantList) to a list of input layers

Parameters

• layersVariant (Any) –

• context (QgsProcessingContext) –

Return type

List[QgsDxfExport.DxfLayer]

type(self) → str

Return type

str

typeName() → str

Returns the type name for the parameter class.

Return type

str

valueAsPythonString(self, value: Any, context: QgsProcessingContext) → str

Parameters

• value (Any) –

• context (QgsProcessingContext) –

Return type

str

variantMapAsLayer(layerVariantMap: Dict[str, Any], context: QgsProcessingContext) → QgsDxfExport.DxfLayer

Converts a QVariant value (a QVariantMap) to a single input layer

Parameters

• layerVariantMap (Dict[str) –

• context (QgsProcessingContext) –

Return type

QgsDxfExport.DxfLayer