====== Prepare MM Data Trimble ======

This is the description of how Trimble Mobile Mapping data needs to be prepared for the Orbit AIM import.

===== Panorama Images =====

The panorama images are stored in the *.pgr files :
  * for every photo positions there are 6 individual pictures coming from the ladybug 3
  * single file size is limited to 2GB, multiple files possible : <name>-000000.pgr, <name>-00001.pgr

===== Panorama Image Positions =====

The photo positions are post processed to a *.gps file and then converted into the SHP format :
  * each point idicates the center of a panorama
  * Description of Attributes : 

^ Orbit ^ GPS/SHP Attributes ^ Attribute Type ^ Data Units ^ Description ^
| longitude | X | float8 | decimal degrees | Longitude in decimal degrees WGS84 |
| latitude | Y | float8 | decimal degrees | Latitude in decimal degrees WGS84 |
| Z | Z | float8 | meters | Altitude (orthometric) in meters over the NMM |
| pan | heading | float8 | radians | Heading angle or vehicle direction in radians. This angle is defined using the Cartesian coordinates system, which means counter clockwize with a 0 on the positive axis of the X. \\ It is generated by an Inertial Measurement Unit (IMU) or is calclated according to the GPS coordinates |
| tilt | Pitch | float8 | decimal degrees | Angle corresponding to the vehicle pitch (front-back) in decimal degrees. Generated by an IMU. |
| roll | Roll | float8 | decimal degrees | Angle corresponding to the vehicle roll (left-right) in decimal degrees. Generated by an IMU. |
| image | Frame_No | int8|  | Unique image ID. In the shape file saved as an integer (INT8) and consequently without leading 0-values. |

==== Exporting .gps files to Shape using Trimble T3d GPS ====

  - Open function GPS2SHP \\ {{mobile_mapping:desktop:core:manage_import:trimble_t3d_gps_to_shp1.jpg?nolink&600|}}
  - Select the .gps files \\ {{mobile_mapping:desktop:core:manage_import:trimble_t3d_gps_to_shp2.jpg?nolink&600|}}
  - Run & Check results \\ {{mobile_mapping:desktop:core:manage_import:trimble_t3d_gps_to_shp3.jpg?nolink&600|}}
===== Point Cloud =====

The point cloud is the composition of 3 sensors, resulting in 3 *.las files :
  * Hlidar_..._LAS1_2.las
  * Llidar_..._LAS1_2.las
  * Rlidar_..._LAS1_2.las

==== Exporting Las v 1.2  ====

  * The supported .las version is 1.2
  * More information about the supported coordinate systems : [[192:technology:core:crs|]] \\ \\ \\ {{mobile_mapping:desktop:core:manage_import:trimble_las_to_las1.2.jpg?nolink&600|}}