vrnode

(To be removed) Create node or handle to existing node

vrnode will be removed in a future release. For more information, see Version History.

Syntax

mynode = vrnode
mynode = vrnode([])
mynode = vrnode(vrworld_object,'node_name')
mynode = vrnode(vrworld_object, 'node_name','node_type')
mynode = vrnode(vrworld_object, 'USE', othernode)
mynode = vrnode(parent_node,'parent_field', 'node_name', 
'node_type')
mynode = vrnode(parent_node,'parent_field', 'USE', 
'othernode')

Arguments

`vrworld_object`	Name of a `vrworld` object representing a virtual world.
`node_name`	Name of the node.
`node_type`	Type of the node.
`parent_node`	Name of the parent node that is a `vrnode` object.
`parent_field`	Name of the field of the parent node.
`'USE'`	Enables a `USE` reference to another node.
`othernode`	Name of another node for a `USE` reference.

Description

mynode = vrnode creates an empty vrnode handle that does not reference any node.

mynode = vrnode([]) creates an empty array of vrnode handles.

mynode = vrnode(vrworld_object,'node_name') creates a handle to an existing named node in the virtual world.

mynode = vrnode(vrworld_object, 'node_name','node_type') creates a new node called node_name of type node_type on the root of the virtual world. It returns the handle to the newly created node.

mynode = vrnode(vrworld_object, 'USE', othernode) creates a USE reference to the node othernode on the root of the world vrworld_object. It returns the handle to the virtual world to the original node.

mynode = vrnode(parent_node,'parent_field', 'node_name','node_type') creates a new node called node_name of type node_type that is a child of the parent_node and resides in the field parent_field. It returns the handle to the newly created node.

mynode = vrnode(parent_node,'parent_field', 'USE', 'othernode') creates a USE reference to the node othernode as a child of node parentnode and resides in the field parentfield. It returns the handle to the original node.

A vrnode object identifies a virtual world node in a way very similar to a handle. If you apply the vrnode method to a node that does not exist, the method creates a node, the vrnode object, and returns the handle to the vrnode object. If you apply the vrnode method to an existing node, the method returns the handle to the vrnode object associated with this node.

Method Summary

Method	Description
`delete`	Remove `vrnode` object
`fields`	Virtual world field summary of node object
`isfield`	Returns true if field is name of `vrnode` object field
`get`	Property value of `vrnode` object
`getfield`	Field value of `vrnode` object
`isvalid`	`1` if `vrnode` object is valid, `0` if not
`interpolate`	Interpolate field value of `vrnode` object
`set`	Change property of virtual world node
`setfield`	Change field value of `vrnode` object
`sync`	Enable or disable synchronization of virtual world fields with client
`optimize`	Change geometries to reduce number of vertices
`parent`	Return the parent node of the `vrnode` object
`propagate`	Propagate value of selected property to `vrnode` object

Version History

Introduced before R2006a

collapse all

R2023b: To be removed

The vrnode will be removed in a future release. Instead, use sim3d classes and Simulation 3D blocks to interface MATLAB^® and Simulink^® with the Unreal Engine^® 3D simulation environment. To get started, see Create 3D Simulations in Unreal Engine Environment.