open3d.visualization.ExternalVisualizer

class open3d.visualization.ExternalVisualizer(address='tcp://127.0.0.1:51454', timeout=10000)

This class allows to send data to an external Visualizer

Example

This example sends a point cloud to the visualizer:

import open3d as o3d
import numpy as np
ev = o3d.visualizer.ExternalVisualizer()
pcd = o3d.geometry.PointCloud(o3d.utility.Vector3dVector(np.random.rand(100,3)))
ev.set(pcd)
Parameters

  • address – The address where the visualizer is running. The default is localhost.

  • timeout – The timeout for sending data in milliseconds.

__init__(address='tcp://127.0.0.1:51454', timeout=10000)

Initialize self. See help(type(self)) for accurate signature.

set(obj=None, path='', time=0, layer='', connection=None)

Send Open3D objects for visualization to the visualizer.

Example

To quickly send a single object just write::

ev.set(point_cloud)

To place the object at a specific location in the scene tree do::

ev.set(point_cloud, path=’group/mypoints’, time=42, layer=’’)

Note that depending on the visualizer some arguments like time or layer may not be supported and will be ignored.

To set multiple objects use a list to pass multiple objects::

ev.set([point_cloud, mesh, camera])

Each entry in the list can be a tuple specifying all or some of the location parameters:

ev.set(objs=[(point_cloud,'group/mypoints', 1, 'layer1'),
             (mesh, 'group/mymesh'),
             camera
            ]
Parameters

  • obj – A geometry or camera object or a list of objects. See the

  • seection for usage instructions. (example) –

  • path – A path describing a location in the scene tree.

  • time – An integer time value associated with the object.

  • layer – The layer associated with the object.

  • connection – A connection object to use for sending data. This parameter can be used to override the default object.

set_active_camera(path)

Sets the time in the external visualizer

Parameters

path – A path describing a location in the scene tree.

set_time(time)

Sets the time in the external visualizer

Parameters

time – The time value