====== LiBackpack ======

This page describes the original LiBackpack C50 and DGC50 mobile mapping resources for Orbit. 

Use the corresponding [[234:desktop_ext:mapping:manage_import:templates|Orbit Import Template]] to import the described original data. \\
It is recommend to read first [[234:technology:3d_mapping:about_resources|]].

===== Panoramas =====

=== Image files ===

  * Image type: equirectangular panoramas.
  * Image resolution: Ratio 2x1
  * File format: Each image is one *.jpg file.
  * Filename: Exactly as filePath of image positions file, without the first part (path to the folder to which they belong). 
    * Example: value for filePath in the Image Position File = 'Img/img4.jpg' → Filename is 'img4.jpg'
  * Folder structure:
    * Organized in (a) subfolder(s) within the “original” folder of the run.
    * Sub folder name(s) : "Img", see below
    * Example: filePath = “Img/img4.jpg” → Path to that image file is <Orbit run>\Panorama1\Original\Img\img4.jpg

=== Image positions file ===

  * File format: One ASCII file.
  * File structure Rows: Each image is one record.
  * File structure Columns: Comma separated, headers, with exact order as in the example below.
  * Value of filePath, column 0: Filename as on disk, with file extension and subfolder to which the image file belongs.
  * Value of Coordinates: any [[206:technology:core:crs|supported coordinate system]] can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator. In the case of LiBackpack C50, the use of EPSG 3395 is advised, because these data are taken in a local system. For DGC50, the data are georeferenced, so users can choose the coordinate system that was used.

<code>
filePath,time,roll,pitch,heading,x,y,z
Img//img4.jpg,3.148,174.3836661,0.6821018,88.4273450,0.051,-0.181,0.230
Img//img5.jpg,4.148,174.3215960,0.6617442,88.7600099,0.054,-0.223,0.220
Img//img6.jpg,5.148,176.4526122,-0.1641862,89.6577228,0.133,-0.686,0.200
Img//img7.jpg,6.148,176.6726066,-0.0688405,87.6401731,0.033,-1.580,0.237
...
</code>


===== LiDAR =====

=== Point cloud files ===

  * File format: One or more *.las or *.laz files.
  * Value of Coordinates: Same CRS as Photopositions.
  * Value of Timestamps: Same Time Reference as Photopositions, see above.