====== CHC Navigation ======

This page describes the original CHC Navigation mobile mapping resources for Orbit import.

Use the corresponding [[217:desktop_ext:mapping:manage_import:templates|Orbit Import Template]] to import the described original data. \\
It is recommend to read first [[217:technology:3d_mapping:about_resources|]].

===== Panoramas =====

=== Image files ===

  * Image type : equirectangular panoramas.
  * Image resolution : Ratio 2x1.
  * File format : Each image is one *.jpg file.
  * File name : Exactly as Filename of image positions file, see below.
  * Folder structure : All files in one folder.

=== Image positions file ===

  * File format : One ascii *.txt file.
  * File structure Rows : Each image is one record.
  * File structure Columns : Comma separated (char44), headers, with exact order as in the example below.
  * Value of Filename : Filename as on disk, without file extension.
  * Value of Coordinates : any [[217:technology:core:crs|supported coordinate system]] can be used decimal notation, without thousands separator.
  * Value of Timestamps : GPS seconds week. 

<code>
Filename	Timestamp	X	Y	Z	Pan	Tilt	Roll
00000000000000001,28350.3320,645260.9861,2812235.2881,-35.6185,8.7790,1.7187,-1.4600
00000000000000002,28351.4080,645262.7143,2812248.5304,-35.5953,9.9472,1.4221,-0.5255
00000000000000003,28352.4090,645264.3971,2812259.0788,-35.5990,12.9151,1.0782,-0.0548
...
</code>

===== LiDAR =====

=== Point cloud files ===

  * File format : One or more *.las files in one folder.
  * File structure : Las version 1.2.
  * Value of Coordinates : Same CRS as photo positions, see above.
  * Value of Timestamps : Same Time Reference as photo positions, see above.