Prepare MM data Generic Import

This page describes how to prepare mobile mapping resources for a generic import.
Using the generic Orbit import templates prepared mobile mapping resources can be imported into Orbit.

It is strongly recommend to read first Understand Mobile Mapping data in Orbit.

Currently not supported on generic import.

• Image type : equirectangular panoramas
• Image resolution : ratio 2×1
• Files : *.jpg files, each image is one jpg file
• File name : exactly as “Filename” value of photo position file, see below
• Folder structure : all files in one folder

• Files : one asccii *.txt or *.csv file
• Rows : each image is one record
• Columns : tab separated (char9), headers, with exact order as the example below
• Value “Filename” : file name as on disk, without file extension
• Value “X”, “Y” : any supported coordinate system can be used, but all mobile mapping resources should have the same crs

Filename	X	Y	Z	Pan	Tilt	Roll Timestamp
Brussel_1000000	4.404878286326054	50.85106227753124	128.33142823723782	88.132974310915699	0.095102381910084	-359.06942401248796	0
Brussel_1000001	4.404918241374241	50.85107702770032	128.37570893339338	39.507857332631851	-1.084923642050256	-359.32845731111627	1
...

• Image type : rectified images
• Image resolution : camera calibration setting
• Files : *.jpg files, each image is one jpg file
• File name : exactly as “Filename” value of the photo position file, see below
• Folder structure : all files in one folder

See above, image positions and orientations file for panoramas.

• SensorPixelSize : physical size of pixels on the sensor CCD, expressed in mm
• SensorPixelCountX : number of pixels in widht of the camera sensor and image
• SensorPixelCountY : number of pixels in height of the camera sensor and image
• SensorPixelPPX : principal point value along the sensor width
• SensorPixelPPY : principal point value along the sensor height
• FocalLength : focal length of the lens, expressed in mm

For every camera it is required to review and adjust the default Orbit template camera calibrations, prior to the import.
<Orbit installation directory>/program/ext/mobile_mapping/project/template/<template name>/planar<1,…>/import/import_locations.ord

• Files : one or more supported LiDAR resources
• File name : free of choice
• Latitude, Longitude : any supported coordinate system can be used, but all mobile mapping resources should have the same crs

• File structure if point cloud file is imported as *.txt or *.csv file
• Flat ascii text file, comma or tab separated, column headers, with exact columns : X, Y, Z, R, G, B, I
  • R, G, B, I value ranges 0-255, values may be empty
  • All lines are terminated by a carriage return char(13) / newline char(10) sequence
  • Name of headers are not free of choice
    
    

    Longitude	Latitude	Z	R	G	B	I
    4.40487692010655	50.8510926423286	125.763312461527	16	17	19	46
    4.40487698750245	50.8510916370433	125.761583937394	16	17	19	46
    ...