collada.scene.Node

class collada.scene.Node(id, children=None, transforms=None, xmlnode=None)

Bases: collada.scene.SceneNode

Represents a node object, which is a point on the scene graph, as defined in the collada <node> tag.

Contains the list of transformations effecting the node as well as any children.

__init__(id, children=None, transforms=None, xmlnode=None)

Create a node in the scene graph.

Parameters:

• id (str) – A unique string identifier for the node
• children (list) – A list of child nodes of this node. This can contain any object that inherits from collada.scene.SceneNode
• transforms (list) – A list of transformations effecting the node. This can contain any object that inherits from collada.scene.Transform
• xmlnode – When loaded, the xmlnode it comes from

Methods

__init__(id[, children, transforms, xmlnode])	Create a node in the scene graph.
load(collada, node, localscope)
objects(tipo[, matrix])	Iterate through all objects under this node that match tipo.
save()	Saves the geometry back to xmlnode.

id

The unique string identifier for the node

children

A list of child nodes of this node. This can contain any object that inherits from collada.scene.SceneNode

matrix

A numpy.array of size 4x4 containing a transformation matrix that combines all the transformations in transforms. This will only be updated after calling save().

xmlnode

ElementTree representation of the transform.

objects(tipo, matrix=None)

Iterate through all objects under this node that match tipo. The objects will be bound and transformed via the scene transformations.

Parameters:

• tipo (str) – A string for the desired object type. This can be one of ‘geometry’, ‘camera’, ‘light’, or ‘controller’.
• matrix (numpy.matrix) – An optional transformation matrix

Return type:

generator that yields the type specified

save()

Saves the geometry back to xmlnode. Also updates matrix if transforms has been modified.