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Documentation/API reference/DistanceBetween

DistanceBetween

Distance between two points, with optional space matrices.

ClassAPI 2.0MATHS
objectNodeDGNodeDistanceBetween
from weSkel.src.core.node.dg.distance_between.lib import DistanceBetween

Run in Maya or an initialized mayapy process. Import om only if your script uses OpenMaya types.

Item Value
Classe DistanceBetween
Module weSkel.src.core.node.dg.distance_between.lib
Maya type distanceBetween
Direct parent DGNode
Inventory Members defined or overridden here; inherited members are grouped by parent in each section.

Signature : DistanceBetween(node) → DistanceBetween.

Parameter Accepted type Default
node Union[str, om.MObject, om.MObjectHandle, om.MFnDependencyNode] Required

Wraps an existing node or stages a wrapper for an absent name; does not create the node. Call create() separately. An incompatible object or type can raise TypeError. Shared identity can return an already registered compatible wrapper.

Python properties defined or overridden here. R: read-only; R/W: a setter exists, subject to the member notes. om.* types belong to maya.api.OpenMaya.

No new Python property; see inherited members and specs below.

Properties inherited from DGNode15
Property Return type Access Description
dep_fn om.MFnDependencyNode R Live function set; unattached object when the node is missing.
uuid str | None R Live UUID, or the last staged value if still available.
name str | None R/W Live name, otherwise staged name.
absolute_name str | None R Absolute namespace name from MFnDependencyNode.absoluteName(); None without a node.
stripped_name str | None R/W Name without its namespace, or None when unnamed.
namespace str | None R/W Normalized namespace such as a:b; None at the root.
plugs Plugs | None R Live node plug manager; None otherwise.
is_valid_dep_fn bool R Function-set compatibility with the current MObject.
is_default_node bool R Whether this is a Maya default node; False without a node.
is_from_referenced_file bool R Whether the node comes from a referenced file; False without a node.
is_locked bool R/W Node lock, separate from plug locks.
is_shared bool R Shared state reported by Maya; False without a node.
plugin_name str | None R Associated Maya plugin name, possibly an empty string; None without a node.
affect_animation bool R Result of MFnDependencyNode.affectsAnimation(); False without a node.
type str | None R/W Live native type or staged type.
Properties inherited from Node10
Property Return type Access Description
mobject om.MObject R/W Live Maya object, or a null object.
mobject_handle om.MObjectHandle R/W Handle associated with the node.
api_type int | None R Maya API type identifier.
api_type_str str R API type name, for example "kTime".
exists bool R The wrapper currently has a live node.
is_null bool R The returned Maya object is null.
is_alive bool R The object exists with a valid, live handle.
is_valid_handle bool R Validity of the stored handle.
is_dag_node bool R Compatibility with om.MFn.kDagNode.
hash_code int R Maya handle hash.

Defaults and flags below are spec declarations, not guaranteed live values. A descriptor can return a proxy: .value reads its value; .plug accesses the Plug. Proxy names describe results, not private classes to import. Observed types come from a test fixture; disconnected geometry inputs may notably return None.

For writes where failure must be checked, use the Plug explicitly and verify live state. Descriptor setters do not propagate every native failure.

Property Maya plug Returns
distance distance _ValuePlugProxy · .value: float
point_1 point1 _ValuePlugProxy · .value: tuple
point_1_x point1.point1X _ValuePlugProxy · .value: float
point_1_y point1.point1Y _ValuePlugProxy · .value: float
point_1_z point1.point1Z _ValuePlugProxy · .value: float
point_2 point2 _ValuePlugProxy · .value: tuple
point_2_x point2.point2X _ValuePlugProxy · .value: float
point_2_y point2.point2Y _ValuePlugProxy · .value: float
point_2_z point2.point2Z _ValuePlugProxy · .value: float
in_matrix_1 inMatrix1 _ValuePlugProxy · .value: tuple
in_matrix_2 inMatrix2 _ValuePlugProxy · .value: tuple

node.distanceNative spec

Access to native plug distance.

Item Type / behavior
Maya path distance
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags output, connectable
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.distance.value

node.point_1Native spec

Access to native plug point1.

Item Type / behavior
Maya path point1
Property return _ValuePlugProxy · .value: tuple
Declared kind double3
Declared default ()
Flags input, connectable, stored
Read node.point_1.value
Descriptor assignment node.point_1 = value

node.point_1_xNative spec

Access to native plug point1.point1X.

Item Type / behavior
Maya path point1.point1X
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags input, connectable, stored
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.point_1_x.value
Descriptor assignment node.point_1_x = value

node.point_1_yNative spec

Access to native plug point1.point1Y.

Item Type / behavior
Maya path point1.point1Y
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags input, connectable, stored
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.point_1_y.value
Descriptor assignment node.point_1_y = value

node.point_1_zNative spec

Access to native plug point1.point1Z.

Item Type / behavior
Maya path point1.point1Z
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags input, connectable, stored
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.point_1_z.value
Descriptor assignment node.point_1_z = value

node.point_2Native spec

Access to native plug point2.

Item Type / behavior
Maya path point2
Property return _ValuePlugProxy · .value: tuple
Declared kind double3
Declared default ()
Flags input, connectable, stored
Read node.point_2.value
Descriptor assignment node.point_2 = value

node.point_2_xNative spec

Access to native plug point2.point2X.

Item Type / behavior
Maya path point2.point2X
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags input, connectable, stored
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.point_2_x.value
Descriptor assignment node.point_2_x = value

node.point_2_yNative spec

Access to native plug point2.point2Y.

Item Type / behavior
Maya path point2.point2Y
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags input, connectable, stored
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.point_2_y.value
Descriptor assignment node.point_2_y = value

node.point_2_zNative spec

Access to native plug point2.point2Z.

Item Type / behavior
Maya path point2.point2Z
Property return _ValuePlugProxy · .value: float
Declared kind numeric:double
Declared default 0.0
Flags input, connectable, stored
Observed read · Maya 2025.3 _ValuePlugProxy · .value: MDistance
Observed read · Maya 2026.3 _ValuePlugProxy · .value: float
Read node.point_2_z.value
Descriptor assignment node.point_2_z = value

node.in_matrix_1Native spec

Access to native plug inMatrix1.

Item Type / behavior
Maya path inMatrix1
Property return _ValuePlugProxy · .value: tuple
Declared kind typed:matrix
Declared default (1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0)
Flags input, connectable, stored
Read node.in_matrix_1.value
Descriptor assignment node.in_matrix_1 = value

node.in_matrix_2Native spec

Access to native plug inMatrix2.

Item Type / behavior
Maya path inMatrix2
Property return _ValuePlugProxy · .value: tuple
Declared kind typed:matrix
Declared default (1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0)
Flags input, connectable, stored
Read node.in_matrix_2.value
Descriptor assignment node.in_matrix_2 = value
Specs inherited from DGNode6
Property Maya plug Returns Description
message message None Node message plug; used for connections, with no numeric value.
frozen frozen _ValuePlugProxy · .value: bool Native evaluation freeze state.
is_historically_interesting isHistoricallyInteresting _ValuePlugProxy · .value: int Node interest level in Maya history.
bin_membership binMembership _ValuePlugProxy · .value: str Maya bin membership.
caching_enabled caching _ValuePlugProxy · .value: bool Native node caching switch.
caching_node_state nodeState _ValuePlugProxy · .value: int Native nodeState evaluation state.

No additional public method; inherited methods remain available.

Methods inherited from DGNode7
Method Returns Description
create None Creates a missing node; does nothing if it already exists.
delete None Disconnects live connections, detaches the wrapper and deletes the node.
snapshot DGSnapshot Captures and stores an identity and spec-driven SVD dictionary.
snapshot_svd SVDSnapshot Captures Source / Value / Destinations for the requested list.
svd SVDView Returns a read-only live view of source, value and destinations; it is not a frozen capture.
finalize None Applies all sources, then undriven values, then destinations; enabled FSET dispatch follows.
clear_attr_cache None Clears this instance attribute cache; does not delete nodes or clear the global wrapper registry.
Methods inherited from Node2
Method Returns Description
has_fn(fn_type) bool Test compatibility with a Maya function set.
clear_node_registry() None Detach registered wrappers and clear their shared registry.
Attribute Value / composition
NODE_TYPE 'distanceBetween'
SPEC_LAYERS get_dg_specs_all, get_distance_between_specs_all

NODE_REGISTRY and other class attributes not overridden here remain inherited. Exported Snapshot types describe dictionaries; use node.snapshot() to capture state.

Point Behavior
Identity A node recreated under the same name is a new Maya object.
Creation and geometry The constructor creates nothing; call create() before live operations.
Capture Snapshots can contain Maya objects; do not assume JSON-ready data or complete geometry reconstruction.

Self-contained Maya Python Script Editor example. In mayapy, initialize maya.standalone before this block. The demonstration creates its own nodes and removes them in finally.

from uuid import uuid4
import maya.api.OpenMaya as om
from weSkel.src.core.node.dg.distance_between.lib import DistanceBetween
node = DistanceBetween("api_distance_between_" + uuid4().hex[:8])
try:
node.create()
node.point_1 = (0.0, 0.0, 0.0)
node.point_2 = (3.0, 4.0, 0.0)
value = node.distance.value
result = value.asCentimeters() if isinstance(value, om.MDistance) else value
assert abs(result - 5.0) < 1e-6
print("DistanceBetween: native evaluation OK")
finally:
node.delete(snapshot=False)

Expected result : DistanceBetween: native evaluation OK.

SDK checkpoint 87c3486. Member inventory checked against loaded classes in Maya 2025.3 and 2026.3; reads and compatibility are specified in the member cards. Example run in both versions, including explicitly documented expected failures. The example does not cover every method. Listed limitations remain in source; these checks do not validate the compiled package.