SVDView

SVDView exposes Source / Value / Destinations without capturing a copy. Each property reads the plug at access time.

object→SVDView

1field4properties

Import

from weSkel.src.core.props.svd import SVDView

Run in Maya with weSkel available. om.* types refer to maya.api.OpenMaya.

Inheritance and scope

Item	Value
Class	SVDView
Module	weSkel.src.core.props.svd
Direct parent	object
Kind	dataclass; frozen=True
Spec properties	None.

This reference documents members defined by this class. Standard Python mechanisms and native inherited members are outside its member counts.

Constructor

SVDView(plug: Plug) → SVDView

Parameter	Type	Default
plug	Plug	required

Supply a valid Plug. node.svd("scaleX") is another entry point. The constructor copies no value and does not enforce annotations at runtime.

Fields

Declared fields; a frozen dataclass prevents reassignment, not all nested mutations.

Field	Return type	Access	Purpose
plug	Plug	R	Plug read by the view.

plug

view.plugRead only

Return type	Contract
Plug	Plug read by the view.

Properties

Own members. R = read only; R/W = read and write.

Property	Return type	Access	Purpose
attr_name	str	R	Current long attribute name without the node prefix.
source	Optional[Plug]	R	Current logical source, or None.
value	Any	R	Value read again from Maya on every access.
destinations	PlugArray	R	Logical destinations read again on every access.

attr_name

view.attr_nameRead only

Return type	Contract
str	Current long attribute name without the node prefix.

source

view.sourceRead only

Return type	Contract
Optional[Plug]	Current logical source, or None.

value

view.valueRead only

Return type	Contract
Any	Value read again from Maya on every access.

destinations

view.destinationsRead only

Return type	Contract
PlugArray	Logical destinations read again on every access.

Behavior to remember

The dataclass is frozen: its fields cannot normally be reassigned. This does not make the plug or scene immutable. Editing the plug elsewhere changes the next read.

value returns the evaluated value even when a source exists. During SVD replay a source takes priority over a local value. Construction does not validate the argument: a missing plug or deleted identity may make reads fail.

Usage example

from uuid import uuid4
from weSkel.src.core.node.dag.transform.lib import Transform
from weSkel.src.core.props.svd import SVDView

node = Transform("sdk_live_" + uuid4().hex[:8])
try:
    node.create()
    plug = node.plugs["scaleX"]
    view = SVDView(plug)
    plug.value = 2.0
    assert view.value == 2.0
    plug.value = 4.0
    assert view.value == 4.0
    assert view.source is None and len(view.destinations) == 0
    assert view.attr_name == "scale.scaleX"
    print("SVDView: PASS")
finally:
    node.delete(snapshot=False)

Expected result: SVDView: PASS. Temporary nodes are removed in finally.

See also: SVDPlug · SVDSnapshot · FSEntry.