====== Orbit Point Cloud ======

An Orbit Point Cloud (*.opc) is Orbit's native point cloud storage format. \\
The OPC is been developed for encoding and fast viewing and using in Orbit's 2D and 3D environment.


===== Orbit Point Cloud processing =====

The Orbit processes raw point cloud file(s) into a multiresolution Orbit Point Cloud (*.opc). \\
This very powerful and unique technology makes it possible to view and use unlimited point cloud files at once without loading : \\ [[110:mobile_mapping:desktop:mobile_mapping:use:view_pointcloud|]]

If the multi-resolution point cloud (new since [[110:mobile_mapping:desktop:updates:update_1040|version 10.4]] is not yet processed for an available Orbit Run, one can update the Orbit point cloud : \\
Procedures > Administration > Mobile Mapping > Edit Run > Point Cloud > Update.

Importing a point cloud dataset is a one time process and will take some time. Processing time is affected by : 
  - Storage format of original data.
  - Computing power, 64bit is recommended.
  - Orbit installation (64bit or 32bit) and memory configuration.
  - Speed of Access to source data and target location.

Example import of 292.258 million point cloud points using Orbit 10.5.1, 64Bit, 4GB Memory, read and write on SSD
  * Las - 5.44 GB : 8m 31s (reading) + 4m 42s (writing)
  * Laz - 675 MB : 39m 46s (reading) + 4m 42s (writing) \\ Reading Laz = 4.67x Reading Las. It is all about compression and decompression. 

Related documentation : 
  * [[110:technologies:platforms:specs_mm|]]
  * [[110:technologies:platforms:config_64bit|]]

The import procedure displays the progress bar of the current import phase (Reading, Writing or Writing Multi-resolution). The time required for each phase depends the above listed topics. You may wish to do this overnight for very large point cloud datasets or using the [[110:orbitgis:taskmanager:index|Task Manager]].