====== 3DT Scanfly Lidar ======

This page describes the original 3DT Scanfly data import for aerial mapping resource creation. 

To import the described original data, use the corresponding [[262:desktop_ext:mapping:manage_import:templates|Orbit Import Template]]. \\
It is recommended to read first [[262:technology:3d_mapping:about_resources|]].

===== Trajectory =====

=== Trajectory positions file ===

  * File : one ascii txt file.
  * File structure Rows : Each trajectory timestamp is one record.
  * File structure Columns : Comma separated (char44), headers, with exact order as the example below.
  * Value of Timestamps "Timestamp" : GPS Absolute time or GPS Week time, decimal notation.
  * Value of Coordinates : any [[262:technology:core:crs|supported coordinate system]] can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator.

<code>
Timestamp,X,Y,Z,Pan,Tilt,Roll,X_Rms,Y_Rms,Z_Rms
...
</code>

===== Planars =====

=== Image files ===

  * Image type : Undistroted images.
  * File format : Each image is one *.jpg file.
  * File name : Exactly as Image ID of photo position file, see below
  * Folder structure : all image files of one camera in one folder

=== Image positions files ===

  * File format : one ascii txt file for each camera.
  * File structure Rows : Each image is one record.
  * File structure Columns : Comma separated (char44), no headers, with exact order as the example below.
  * Value of "Timestamps", column 1 : Same Time Reference as Trajectory, see above.
  * Value of "Filename", column 2 : File name as on disk, with file extension.
  * Value of Coordinates : any [[262:technology:core:crs|supported coordinate system]] can be used, Long/Lat order for geographical coordinates, decimal notation, without thousands separator


<code>
Timestamp,Filename,X,Y,Z,Roll,Tilt,Pan
...
</code>

=== Camera calibration file ===

  * SensorSizePIXX: Sensor Size width (Pixels)
  * SensorSizePIXY: Sensor Size Height (Pixels)
  * SensorSizeXMM: Sensor Size Width (mm)
  * FocalLenghtMM: Focal Length (mm)
  * PIXEL_SIZE: Pixel Size (micron)

===== LiDAR =====

=== Point cloud files ===

  * File format : One or more [[262:technology:supported_formats:index]]
  * Value of Coordinates : Same CRS as Trajectory, see above.
  * Value of Timestamps : Same Time Reference as Trajectory, see above.