***This is the Survnet Resource Center***
You can use the Attached PDF Documents below for the Survnet Tutorials along with the sample files inside the file
"SurvNetTut.zip"
For some tips on preparing an RW5 raw file for Survnet you can click the link below:
Raw File Troubleshooting Tips
There is also attachments and links at the bottom of the article for:
Survnet PDF Manual
Survnet Closure document
Geoid files for Survnet
Survnet Movies
Here is some Information on HOLDING POINTS in SurvNet:
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In least squares control points are considered to have errors and they can be adjusted. Just because a
point is entered as a 'PT' record in the RW5 raw file does not necessarily mean that the point is fixed. If you want the
point to be fixed you have two options. The first approach requires that we add in a "PT Record" to the RW5 raw file by
tapping the Add pulldown then choose Point and Blank Point to hand enter the correct coordinates for the control point
that we want to hold:
1) The easiest way to fix a point is to assign a small standard error for north and east standard error in the project
settings. In the Project Settings dialog go to the 'Standard Errors' tab and enter .0001 for both the 'North:' and
'East:' coordinate standard error. Save the project and reprocess the project. You will see that the adjusted
coordinates for the 'PT' points were basically held fixed. My bet is that you had the 'North/East' standard error set to
something like .01 when the points were being adjusted. So in a nutshell to fix the control 'PT' points in a project set
the 'North/East' standard error to something very small like .00001.
2) You can also enter a standard error record in the raw data file and designate the points as fixed. For example I
entered the following standard error into your raw data file
CSE,N !,E !,EL*,AZ*
The '!' character tells the program to hold all the PT points that follow the CSE record fixed. Insert the CSE record
into your .RW5 file (enter this in RIGHT ABOVE where your PT records are) and reprocess the file. You will see that your
points are held fixed.