STAR*NET V6 - Circe
STAR*NET V6 - Circe
STAR*NET V6 - Circe
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Chapter 4 Options<br />
Create Geodetic Positions (POS) File – When selected, a Geodetic Positions file will<br />
be created by the adjustment of a grid job. The file consists of station names,<br />
latitudes and longitudes, ellipsoid heights (in a 3D job), and station descriptors. This<br />
is a text file which will have the name of your project plus a “POS” extension (i.e.<br />
SouthPark.pos) and it can be viewed from a selection in the Output menu.<br />
Default Precisions – The decimal precisions set in these fields for coordinates,<br />
geodetic positions and elevations are used for creating the files described above<br />
unless specific precisions are defined in the “format” selected. The DMP file<br />
described below outputs full precisions and is not controlled by these settings.<br />
Create Station Information Dump (DMP) File – When selected, a comma-delimited<br />
file will be created by an adjustment. It will contain information about each station.<br />
The file will have your project name plus a “DMP” extension (i.e. SouthPark.dmp)<br />
and it can be viewed from a selection in the Output menu. This text file may<br />
imported by spread sheet (Excel, etc.), database (Access, etc.) or other external<br />
programs to create custom reports. The first line of text contains headings which<br />
describe what information is in the following fields. Each subsequent line contains<br />
information for a station. The example below shows the first few lines from an actual<br />
“Dump” file. The lines have been truncated because they are very long.<br />
"Name","Description","Northing","Easting","Elevation","Latitude","Lon ...<br />
"0001","Iron Pipe",229833.3213615992,110158.0133318822,215.7733154476 ...<br />
"0002","Jones & Taylor",230797.4132695578,111270.0991547375,216.67223 ...<br />
"0003","",229169.8786997623,111439.5398236188,181.9398806813738,33.06 ...<br />
"0004","Iron Pipe",229887.8965116776,112041.5939534157,174.5938744477 ...<br />
"0005","",219827.9211207605,113465.0155055414,202.5212603320946,32.97 ...<br />
etc.....<br />
Information on each output line includes: Point Name, Descriptor, Coordinates,<br />
Elevation, Latitude, Longitude, Ellipsoid Height, Grid Factor, Elevation Factor,<br />
Convergence, Standard Deviations, Variances and Covariances. Linear units are in<br />
the units of your job when it was last run, angular units are always in degrees, and<br />
text fields (point names and descriptors) are surrounded by double quotes.<br />
When an adjustment is performed for a local (non-grid) job, grid and elevation<br />
factors will have values of 1, and latitudes, longitudes and ellipsoid heights, values<br />
of 0. When error propagation is not performed, the standard deviations, variances<br />
and covariances will have values of 0.<br />
In addition, when the “Include Relative Connection Covariances” box is checked,<br />
another section to the dump file is created which includes covariance values between<br />
connections in the network. These connections are by default, all connections created<br />
by observations, otherwise those named using the “.RELATIVE” inline. A heading<br />
for this section describes the content of this extra information.<br />
A user with knowledge of the relationships between standard deviations, variances<br />
and covariances can use these values for specialized purposes such as in deformation<br />
analysis. Details of these mathamatical relationships are not discussed here.<br />
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