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  8. Release notes
    1. Version 11.3.0
    2. Version 11.2.0
    3. Version 11.1.0

paramnode

Module paramnode provides the definition of the class SBSFuncData and SBSParamNode which compose a function graph.

 class params.paramnode.SBSFuncData(aName='', aConstantValue=None)

Bases: pysbs.common_interfaces.sbsobject.SBSObject

Class that contains information on a function data as defined in a .sbs file

Members:
  • mName (str): identifier of the data.
  • mConstantValue (SBSConstantValue): value. 
 equals(other)

Check if this SBSObject is equivalent to the other SBSObject. Some members may be excluded from this check, the UIDs or GUILayout for instance.

Parameters:other (SBSObject) – The SBSObject to compare to
Returns:True if the two SBSObject are similar according to their definition. 
 getUidIsUsed(aUID)

Check if the given uid is already used in the context of this SBSObject.

Parameters:aUID (str) – UID to check
Returns:True if the uid is already used, False otherwise
Raise:AttributeError if the function getUidIsUsed in not properly overloaded on this SBSObject 
 getValue()

Get the value of this function data

Returns:The value as a string 
 parse(aContext, aDirAbsPath, aSBSParser, aXmlNode)

Parse recursively the given xml node to retrieve the content of the SBSObject.

Parameters:
  • aContext (Context) – execution context
  • aDirAbsPath (str) – the absolute directory containing the current parsed package (.sbs file)
  • aSBSParser (SBSParser) – the substance parser
  • aXmlNode (xml.etree.ElementTree) – the xml node to parse 
 write(aSBSWriter, aXmlNode)

Write recursively the content of the SBSObject into the given xml node.

Parameters:
  • aSBSWriter (SBSWriter) – the substance writer
  • aXmlNode (xml.etree.ElementTree) – the xml node to fill 
 class params.paramnode.SBSParamNode(aGUIName=None, aUID='', aFunction='', aDisabled=None, aType=None, aConnections=None, aFuncDatas=None, aGUILayout=None, aRefFunction=None, aRefDependency=None)

Bases: pysbs.sbscommon.nodes.SBSNode

Class that contains information on a parameter node as defined in a .sbs file. A SBSParamNode represents a function node. It is included in the definition of a SBSDynamicValue, and it can be connected to other SBSParamNode.

Members:
  • mGUIName (str, optional): name of the node.
  • mUID (str): unique identifier in the dynamicValue/paramNodes/ context.
  • mFunction (str): identifier of the function, among the available identifiers as defined in sbsfunctions.
  • mDisabled (str, optional): this node is disabled (“1” / None).
  • mType (str, optional): return type of the node, if the node can handle multiple types.
  • mConnections (list of SBSConnection, optional): input connections list.
  • mFuncDatas (list of SBSFuncData): additional data list.
  • mGUILayout (SBSGUILayout): GUI position of the node in the function graph.
  • mRefFunction (SBSFunction, optional): in the case of an instance function node, reference to the function it represents. 
 changeDependencyUID(aSBSDocument, newDepUID)

Change the UID of the dependency referenced by this instance.

Parameters:
  • aSBSDocument (SBSDocument) – The root document, required to reset all the internal links to the referenced graph
  • newDepUID (str) – The new dependency UID 
 changeInstancePath(aParentDocument, aInstanceDocument, aFunctionRelPath)

Change the function referenced by this instance. If aInstanceDocument is not already declared as a dependency, the dependency will be added to aParentDocument.

Parameters:
  • aParentDocument (SBSDocument) – The parent document of this node
  • aInstanceDocument (SBSDocument) – The document containing the function to reference by this instance (can be equal to parent document)
  • aFunctionRelPath (str) – The function path, relatively to its parent package aInstanceDocument (pkg:///myFunction?dependency=1234567890) 
 classify(aOther)

Use the definition of the two nodes to classify them, and their GUI position if they have the same definition. The function identifier is used to classify them. At a final option, the GUI position is used, and in this case, mostLeft < mostRight and then mostUp < mostDown.

Parameters:
  • aOther (SBSParamNode) – The node to compare to.
  • aParentContainer (SBSDynamicValue, optional) – The dynamic value containing the nodes to classify
Returns:

1 if itself is considered greater than the other node, -1 for the opposite. 0 in case of equality.

 
 equals(other)

Check if this SBSObject is equivalent to the other SBSObject. Some members may be excluded from this check, the UIDs or GUILayout for instance.

Parameters:other (SBSObject) – The SBSObject to compare to
Returns:True if the two SBSObject are similar according to their definition. 
 getConnectedNodesUID()

Get the UIDs of the nodes connected to this node.

Returns:The UIDs as a list of string 
 getConnectionOnPin(aPinIdentifier)

Get the connection defined on the given input.

Parameters:aPinIdentifier (str) – identifier of the input pin (for SBSCompNode, SBSParamNode and MDLNode) or of the output pin(for SBSParamsGraphNode)
Returns:a SBSConnection object corresponding to the connection defined on the given pin. None otherwise 
 getConnections()

Get the connections defined on this node.

Returns:a list of SBSConnection 
 getConnectionsFromNode(aLeftNode)

Get all the connections coming from the given left node.

Parameters:aLeftNode (SBSNode or str) – The node to look for in the incoming connections of this node, as an object or a UID
Returns:a list of SBSConnection 
 getDefinition()

Get the function node definition (Inputs, Outputs, Parameters)

Returns:a FunctionDef object 
 getDependencyUID()

If this node is an instance of a Function, get the UID of the dependency referenced by this instance.

Returns:The dependency UID as a string if found, None otherwise 
 getDisplayName()

Get the display name of this node

Returns:the display name as a string 
 getInputDefinition(self, aInputIdentifier=None)

Get the input definition corresponding to the given identifier.

Parameters:aInputIdentifier (InputEnum or str, optional) – The identifier to get. If let None, the primary input will be returned
Returns:the input definition as a CompNodeInput if found, None otherwise 
 getOffsetPosition(aOffset = None)

Compute the position of this node offset by the given offset

Parameters:aOffset (list of 2 float, optional) – the offset to apply to the node’s current position. Default to [0,0]
Returns:the offset position 
 getOutputType()
Returns:The output type of the function node. In case of a template, return the value of the template 
 getParameterValue(aParameter = None)

Find a parameter with the given name/id among the function datas of this ParamNode. If aParameter is None, return the parameter with the name of the function.

Parameters:aParameter (sbsenum.Function or str, optional) – Parameter identifier
Returns:The parameter value if found, None otherwise 
 getPosition()

Get the position of this node in the graph GUI.

Returns:a list of 3 float 
 getRect()

Return the rectangle of this node.

Returns:The rectangle as a Rect 
 getReferenceAbsPath()

If this function node is an instance, get the absolute path of the function referenced by this instance.

Returns:The absolute path of the function referenced by this instance, in the format absolutePath/filename.sbs/functionIdentifier, as a string 
 getReferenceInternalPath()

If this function node is an instance, get the path of the function relatively to the package (pkg:///).

Returns:The path as a string 
 getUidIsUsed(aUID)

Check if the given uid is already used in the context of this SBSObject.

Parameters:aUID (str) – UID to check
Returns:True if the uid is already used, False otherwise
Raise:AttributeError if the function getUidIsUsed in not properly overloaded on this SBSObject 
 hasAReferenceOnDependency(aDependency)

Check if this node directly references the given dependency. For instance if it instantiates a graph or a resource included in this dependency.

Parameters:aDependency (str or SBSDependency) – The dependency to look for (UID or object)
Returns:True if this node references this dependency, False otherwise 
 hasAReferenceOnInternalPath(aInternalPath)

Check if this node references the given internal path (pkg:///). For instance if it instantiates the graph or the resource pointed at the given path.

Parameters:aInternalPath (str) – The internal path to look for
Returns:True if this node references the given internal path, False otherwise 
 isAnInstance()

Check if this SBSParamNode is of kind ‘instance’

Returns:True if this node is a function node ‘instance’, False otherwise 
 isConnectedTo(aLeftNode)

Check if the node is connected to the given node, in the direction aLeftNode -> self

Parameters:aLeftNode (SBSNode or str (UID)) – The node to look for in the connections of this node.
Returns:True if the nodes are connected, False otherwise 
 isDocked()

Check if this node is docked.

Returns:True if this node is docked, None otherwise 
 parse(aContext, aDirAbsPath, aSBSParser, aXmlNode)

Parse recursively the given xml node to retrieve the content of the SBSObject.

Parameters:
  • aContext (Context) – execution context
  • aDirAbsPath (str) – the absolute directory containing the current parsed package (.sbs file)
  • aSBSParser (SBSParser) – the substance parser
  • aXmlNode (xml.etree.ElementTree) – the xml node to parse 
 removeConnectionOnPin(aInput)

Remove the connection on the given input pin.

Parameters:aPinIdentifier (InputEnum or FunctionInputEnum or str) – identifier of the input pin (for SBSCompNode and SBSParamNode) or of the output pin(for SBSParamsGraphNode) to disconnect
Returns:True if a connection is removed, False otherwise 
 removeConnectionsFrom(aLeftNode)

Remove all the connections from aLeftNode to this node (in the direction aLeftNode -> self)

Parameters:aLeftNode (SBSNode or str (UID)) – The node to look for in the connections of this node.
Returns:Nothing 
 resolveDependency(aSBSDocument)

Allow to resolve the dependency of the function instance node with the function it references.

Parameters:aSBSDocument (SBSDocument) – The root document 
 setParameterValue(aParameter, aParamValue)

Set the value of the given parameter to the given value, if compatible with this type of Function

Parameters:
  • aParameter (sbsenum.FilterParameterEnum or str) – identifier of the parameter to set
  • aParamValue (any parameter type) – value of the parameter
Returns:

True if succeed
Raise:

api_exceptions.SBSLibraryError

 
 setPosition(aPosition)

Set the position of this node in the graph GUI.

Parameters:aPosition (a list of 3 float) – The position to set 
 setType()

Set a new param type

Returns:aParamTypeEnum 
 unsetParameter(aParameter)

Unset the given parameter so that it is reset to its default value.

Parameters:aParameter (CompNodeParamEnum or str) – identifier of the parameter to set
Returns:True if succeed, False otherwise
Raise:api_exceptions.SBSLibraryError 
 write(aSBSWriter, aXmlNode)

Write recursively the content of the SBSObject into the given xml node.

Parameters:
  • aSBSWriter (SBSWriter) – the substance writer
  • aXmlNode (xml.etree.ElementTree) – the xml node to fill

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