Novapoint Tunnel Library

In this dialog you can configure your own script for ASCII-file interpretation.

Various vendors have different formats on their exported point cloud files.

Some files have headers describing the format, when it was made etc. There may also be a set of columns having an ID, section number, data set number etc. For the triangulation, only the XYZ position of each scanned point is of interest.

A script contains a series of operations on the file content to remove the unwanted data rows and columns.

A name describing the script. This will also be the filename where the script is stored.

Multiple scanner data files may share a script.

A single command performs a single operation on the file. This list contains all the available commands that can be used.

• Remove Leading Lines - Removes a given number of lines at the beginning of the file.
• Remove Trailing Lines - Removes a given number of lines at the end of the file.
• Remove Column - Removes a single column.
• Value Separator - The various columns may be separated by a space character, tab, comma, point etc. This command enables you to select which character should be intepreted as the separator sign.
• Fixed Width Separator - Columns are always a fixed number of characters. This command enables you to set that number.
• Trim Spaces - Trims away leading and trailing spaces after columns are split.
• Swap Columns 1 and 2 - Swaps the places of the two first columns. Usually to swap X and Y coordinates.

As you build your scripts, you will see all your selected commands in this view. This view also gives a short preview of the options you have selected on a command.

Example:

• You have selected to use the “Remove Leading Lines” command. The Selected Script Command will then display “Remove Leading Lines : 3”. That means, the script will remove the first 3 lines of the file before continuing.

This part of the dialog enables you to edit the options on a given selected command.

This part of the dialog will display a preview of your file content. The preview is updated immediately when changes are done to your script.

Click on OK to save the data and close the dialog.

Click on Cancel to close the dialog without saving the data.