Prepare MM Data CHC Navigation

This page describes Mobile Mapping resources for Orbit acquired by CHC Navigation system.
Using the corresponding Orbit Import Templates the described resources can be imported into Orbit.

It is strongly recommend to read first Concepts of Mobile Mapping and UAS data in Orbit.

Panoramas

Image files

Image type : equirectangular panoramas.
Image resolution : Ratio 2×1.
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 supported coordinate system can be used decimal notation, without thousands separator.
Value of Timestamps : GPS seconds week.

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
...

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.