Changes between Initial Version and Version 1 of Processing/TScanFW

Timestamp:

Sep 3, 2010, 2:38:52 PM (15 years ago)

Author:

emca

Comment:

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Processing/TScanFW

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+
+= Viewing Full Waveform Data in !TerraScan =
+
+In 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. 
+
+In !TerraScan, select Manage Trajectories ( /// icon)  from the General tool bar. Under File > Set Directory select the location of the trj files. 
+
+Alternatively 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). 
+
+Load 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.
+
+From the main !TerraScan window select Flightline > Deduce Using Time. 
+
+On 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).
+
+
+=== !WaveForm Extractions: ===
+
+The PI may request waveform extractions to be included with the delivery. These are ASCII files (one file per return) containing the full waveform information.
+
+ * Draw a fence around the area of interest
+ * Open the View Waveform Data window
+ * File > Save As Text
+
+
+=== Extract Echoes: ===
+
+This tool can be used to create additional discrete points from the full waveform data. 
+
+ * Draw a fence around the area of interest
+ * Select Extract Echoes from the waveform toolbar
+  
+ 
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+
+