Setting up Laser Stations & Reference Points

    Intro

    Rock Mapper usesĀ drive direction lasersĀ (referred to asĀ Laser Stations) and Reference Points (referred to as Points) to georeference rock face photographs as well as LiDAR scans including all annotations.
    • POINT
      Based on the known location (X/Y/Z) of a point on the rock face (e.g., channel sample collar point OR lower left corner of a rock face), the photograph and/or LiDAR scan can be positioned in 3D space
    • LASER STATION
      Based on the known location (X/Y/Z) and the orientation (azimuth, plunge) of a drive direction laser station as well as the measured distance, the position of the projected laser point on the rock face is automatically calculated and then used to position the photograph and/or LiDAR scan in 3D space
      ā„¹ļøĀ For more info about drive direction lasers, please visitĀ DrillcubeĀ orĀ McGarf.

    ā„¹ļø Please be aware that the face photograph and the LiDAR scan have to use the same point or laser station for georeferencing.

    Workflow

    Laser station information are stored in theĀ Laser_Stations.csvĀ file and Reference Point information in the Points.csv file. Both are stored in theĀ SYNCĀ folder of your Rock Mapper Cloud Account.Ā 

    Both files can be edited in Excel or directly in the browser through the Rock Mapper Cloud.Ā Alternatively, Laser Stations and Points can be directly entered and edited on theĀ Laser StationsĀ andĀ PointsĀ Page within the Rock Mapper app.

    To download the georeferencing data, simply open your browser, visit the Rock Mapper Cloud and login using your user credentials. Then go into theĀ SYNCĀ folder and click on theĀ Laser_Stations.csvĀ OR Points.csv file to open it.Ā 

    Users can add/remove/change any rows right within the browser. Every row is a new Laser Station / Reference Point and needs at least 6 inputs and 4 inputs respectively (ID,X,Y,Z,azi,plunge OR ID,X,Y,Z). All changes will be automatically saved. ClickĀ XĀ in upper right corner to close editor.



    ā„¹ļøĀ X, Y, Z, AZIĀ and PLUNGE fields are mandatory. If left empty, these rows won't be downloaded onto the device. The DATE and COMMENT fields are optional and can be left empty.
    AZI values are from 0 to 360 and positive plunges are pointing down into the ground (geologist's convention).

    āœ‹Ā DO NOT use comma to separate the thousands digits for numeric values (e.g., 1,434.121 should be entered as 1434.121). Use decimal point or decimal comma depending on your number format settings (see this article).

    ā„¹ļøĀ Strictly follow the formatting as shown in example above.


    Laser Stations and Points stored in the CSV files can be downloaded individually by pressingĀ Download in the upper rightĀ on the Laser Stations Page and Points Page.Ā 



    ā„¹ļøĀ All Laser Stations and Points are alphabetically sorted based on their ID.Ā 

    Laser Stations and Points can be deleted with a swipe left gesture. Deleting a Laser Station or Point won't affect the Laser_Stations.csv or Points.csv file hosted on the Rock Mapper Cloud. Additionally, it will not affect any rock face that is usingĀ the Laser Station or Point because the associated coordinates are directly stored with the rock face.

    If a Laser Station or Point has already been downloaded to the app, then you will see a check mark symbol. If a Laser Station's or Point's coordinates differĀ from what's stored locally in the app, then it's highlighted red and you have the option to update this item by pressing the blue Update button. Lastly, if a Laser Station or PointĀ has not been downloaded to the app yet, then you will see a blue Download button.


    All Laser Stations and Reference Points are available to pick in theĀ Reference windowĀ after tapping the cross hairs icon on the georeferencing toolbar at the bottom of the Mapping or Sampling Page.Ā 


    Published