SDR File Settings Dialog

(also Pentax / Trimble)

These settings are also used for the Pentax PTS 600 (SDR) format and Trimble DC10.7 format.

Import - Protect Imported Coordinates

Use this option to protect the position record (08KI and 02) coordinates as they are imported. If you do not protect the coordinates (default), they are recomputed by the raw data that was imported.

Import - Overwrite Existing Data

Use this option to update existing points in the survey with the data being imported. If an imported point has the same label as an existing point, the imported coordinates are copied to the existing point.

If this option is off (default), and an imported point has the same label as an existing point, TPC creates a new survey point for the imported point. The one exception to this is that if an imported stored point (08KI) has the same label and coordinates as an existing point, the imported point is assumed to be the same as the existing point and a new point is not created.

Import - Include Notes

Insert comment records (13) into the traverse as a Note record.

Import - Add Stored Points to Traverse

Use this option to create a traverse points for each stored point (08KI) being imported. If this option is off (default), stored points are added to the survey and therefore can be accessed through the Points Manager, but are not added to the traverse created by the import.

Import - Treat First Observation as Backsight

Use this option to treat the first observation (09F1) after a station record as a backsight observation (default). Many of the early SDRs like the 20 and 22 did not force the user to enter a backsight record (07). They assumed that the first observation recorded after a station record would be to the backsight. This option does not treat the first observation as a backsight if the station is followed by a backsight record (07).

Import - Combine BS, OP and FS

Use this option to eliminate redundant points in the traverse created from the import.

The SDR file format includes the following records for each foresight (02-station, 07-backsight or 09F1-backsight and 09F1-foresight). This results in the following traverse point sequence:

1 OP

99 BS

2 SS

2 OP

1 BS

3 SS

3 OP, etc.

This option reduces this sequence to the following:

1 OP

99 BS

2 FS

3 FS, etc.

This format is much cleaner to work with and is typical of how the traverse would look if you had entered the data manually.

Import - Details

Creates a detailed report in the Message View, showing how the file was converted. You will also see the following:

MC records that are ignored.

Unsupported records - displays the entire record

Every station (02) and backsight (07) record, even if you choose to combine them.

All comments (13), even if you choose not to include notes in the traverse.

Import - Convert Horizontal Circle to Angles

Use this option to convert horizontal circle readings to angles. TPC does this by subtracting the BS circle reading from any observations and setting the BS circle reading to zero.

Some surveyors set the BS circle to the reference azimuth of the BS. Any angles turned can be read as a direct azimuth if desired. TPC computes these observations just fine, but if you then copy data to the scrap traverse and include raw data you can loose the association of the circle reading and its original backsight. Conversion from a circle reading to the resulting angle can eliminate the side effects of these actions.

Import - Apply Prism Constant if Found

Adds any prism constants found in the file to the slope distances.

Many of not most total stations correct for the prism constant before they report or store a shot to a target. In this case, you will want to turn this option off (default). If your total station does not correct for the prism constant and includes it in the imported data you can turn this option on to apply it.

Export - Raw Data

Use this option to include raw data records 09F1 and 09F2.

Export - MC Records

Use this option to include 09MC records for each SS or FS.

Export - Checksum

Use this option to compute and add the checksum value to the end of the file.

Export - Control Characters

Use this option to include the 02 control character at the start of the file and the 03 character at the end.

Export Header File

When exporting a file, TPC reads the file header data from the corresponding data file located in the program folder and uses it to create the header of the exported file. The header data is updated to include the current survey job name and distance units.

Sokkia SDR2X uses sdr2x.dat

Sokkia SDR3X uses sdr3x.dat

Trimble DC10.7 uses TrimbleDC10-70.dat

You can edit these files in any text editor and change the information.