Tripod Data Systems SURVEY PRO User Manual page 100

Survey Pro GPS User's Manual
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How to switch from Ground Coordinates back to grid coordinates.
•
How to set the survey scale factor for a point on a map projection.
•
How to use the survey scale factor when storing COGO points on a
map projection grid.
Procedure
1. Start a new job.
•
Choose not to use a control file. Use point 1 and accept
default starting coordinate.
2. Import control coordinates from ASCII file
•
Go to File | Import, and set the type to Text files .csv. Select
TdsControl_Oregon North metric.csv.
•
Create a layer named CONTROL to import the points onto.
This will protect these points as job file control.
3. Start a mapping plane survey.
•
Go to Stakeout | Stake Points to open the Start GPS Survey
wizard. Choose to Select a Mapping plane zone> to open the
Select Coordinate System screen. Choose US State Plane 83
zone Oregon North 3601. The default geoid is Geoid99, but
you can also select Geoid03, or EGM96.
• Tap Finish to set the coordinate system. Because you selected
a new coordinate system, the Adjust with Projection wizard
will run. In our example, our imported ASCII points have
only plane locations, so no job points will be updated. Tap
Next> and you will see a message that no job points would be
changed by the adjustment. You can review the report
anyway, or just tap Apply to finish setting the coordinate
system.
4. Set the base and rover.
• Select Set New Base>, 'connect' to the Demo Mode base
receiver. Enter 'new' for the name of the base point and tap
Next> to start the survey from an autonomous position. Tap
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