Triton TritonNav - Manual (Page 77)

2004.06.28 CHAPTER 1: Using DelphNav™ (Survey Control Panel) 71
Using Delph Nav An Example of Survey Planning in DelphNav
• Perform the procedure ‘Creating a Channel’ starting on page 67.
2. In either of those referenced procedures, recall that the last step in creating the channel
design in DelphNav’s Channel bathymetry dialog box is to click the
OK button.
When you click OK , the system automatically creates an ASCII file containing the
channel design data. By default, the location of that file is the same as the location of
the Survey Planning Editor. In Windows 2000 that location is…
C:\Documents and Settings\USERNAME\Local Settings\Temp
…where USERNAME represents the name of an actual user. That location contains a
file having all the X, Y, and Z values associated with the designed channel. Initially
this file is named:
NewProject_Planning_Channel_1.chn
3. Having created the channel design file, exit DelphNav.
4. Go to the above-mentioned folder and rename the file by changing its file extension
from CHN to TXT. (You can also rename the primary part of the file from
NewProject_Planning_Channel_1
to a name that reflects the nature of your
work. You may also want to move the file to a more convenient working directory for
additional work.)
To import the channel design TXT file into Bathy Pro™
1. Run Bathy Pro and right-click on the Project files folder.
2. Choose the Add XYZ ASCII file (Single Beam Data) option and specify the channel
design TXT file name.
3. While specifying the channel design file name, verify the following parameters for the
file:
• that input and output projections match the survey area, and
• that the grid resolution is comparable to what will be specified for the multibeam
survey.
4. Choose Bathy Processing
→
Process to process your data.
When you choose Process , the system automatically creates a DDS_VIF raster file
with the same primary name as the TXT file you imported.
5. Having created the DDS_VIF file, exit Bathy Pro.