Changes between Initial Version and Version 1 of Processing/TScanFW


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Timestamp:
Sep 3, 2010 2:38:52 PM (11 years ago)
Author:
emca
Comment:

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  • Processing/TScanFW

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     2= Viewing Full Waveform Data in !TerraScan =
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     4In order to view the full waveform data you first need to create trajectory files. With the !RawLaser data loaded in ALSPP select Utilities > Generate trj files. This creates an individual trajectory file for each flightline.
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     6In !TerraScan, select Manage Trajectories ( /// icon)  from the General tool bar. Under File > Set Directory select the location of the trj files.
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     8Alternatively you can use the .sol file. Under Manage Trajectories > File > Import Files > ***.sol. This creates a .trj covering the entire project (which is included with the delivery).
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     10Load in a full waveform .LAS files. It is advisable to create a small fence and only load points inside the fence as !TerraScan can't seem to cope with entire flightlines.
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     12From the main !TerraScan window select Flightline > Deduce Using Time.
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     14On the main !TerraScan toolbox select View Waveform Data to open the waveform viewer (the sideways barchart icon, on the bottom right of the Main toolbar). Under Settings > Display Settings you can adjust how the wave is viewed by varying maximum value (x axis) or sample height (y axis).
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     17=== !WaveForm Extractions: ===
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     19The PI may request waveform extractions to be included with the delivery. These are ASCII files (one file per return) containing the full waveform information.
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     21 * Draw a fence around the area of interest
     22 * Open the View Waveform Data window
     23 * File > Save As Text
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     25
     26=== Extract Echoes: ===
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     28This tool can be used to create additional discrete points from the full waveform data.
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     30 * Draw a fence around the area of interest
     31 * Select Extract Echoes from the waveform toolbar
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