====== Gexcel Heron ======

This page describes the original Gexcel Heron 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, default 3058 x 1529 pixels.
  * 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 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, column 0 : File name as on disk, without file extension.
  * Value of Coordinates : any [[217:technology:core:crs|supported coordinate system]] can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator.
  * Value of Timestamps, column 1: Absolute GPS time, decimal notation. 

<code>
Filename,Timestamp,X/Long,Y/Lat,Z,Pan,Tilt,Roll
panorama_v1223,1501471441,0.0397872751,0.0023484048,-0.1332235547,0.0966883468,7.1969228646,1.8074813084
panorama_v1224,1501471446,0.3818177315,-0.2828974695,-0.1502628832,-170.9555960142,5.4645653269,0.7836058099
panorama_v1225,1501471447,-0.6311079002,-0.0614134237,-0.1752762648,161.2593765428,6.5302388141,1.3937885669
...
</code>


===== LiDAR =====

=== Point cloud files ===

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