FieldGeniusTutorial2

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FieldGenius 2008 v3.2.0 Tutorial 2

Tutorial 2: Measuring a Lot
Introduction

In this tutorial, we will be using the manual input mode to simulate shooting a property.
The figure below illustrates the property that you will be picking up. Although there are some
trees on the lot, in this tutorial we are only interested in locating the four lot corners and then
rotating our new points so they match the plan azimuths.

We will assume that iron pins have been found at the site and look to be in satisfactory condition.
An assumed coordinate will be used for the SW corner of the lot, and our initial backsight will be
to the NW corner.

Starting the Job

Start FieldGenius by double tapping the FieldGenius icon. Depending on your data collector it
will be on the Desktop or in the Start > Programs menu.
© 2005-2007 MicroSurvey Software Inc. Page 1 of 15
FieldGenius 2008 v3.2.0 Tutorial 2

On the FieldGenius Project Manager screen,
press New Project to create a new project.

Name the project “TUTORIAL 2 LOT” and
press OK.

On the Project Review screen, press the
Modify Project Information button.

Enter your project information then press
OK to return to the Review Project screen,
and then press Continue.

Set the project defaults as shown. Select
Meters (3 decimals precision), Degrees
(DDD-MM-SS.s with 1 decimal precision),
and North Azimuth then press OK.

You will be asked if you would like to define
a coordinate system. Choose No.

Occupying a Setup Point
On the Instrument Selection screen, select
Total Station Demo then press Connect.
Typically you would select Total Station, and
have FieldGenius communicate directly with
your instrument, but for the sake of this
tutorial we will use the Total Station Demo
mode rather than connecting to an actual
instrument. Although we will enter the shot
data manually, the manual entries will
simulate actual angles and distances being
measured with your total station.
© 2005-2007 MicroSurvey Software Inc. Page 3 of 15
FieldGenius 2008 v3.2.0 Tutorial 2

You will be asked if you would like to create
a new point. Choose Yes.

We will begin by assigning an assumed
coordinate to point 1. Create point number
1 at 1000,1000,100 with a description IP.
Then press the Store Point button.

When it asks if you would like to setup at the
point, press Yes.

We will setup on point 1, and shoot a
backsight due north.
Set the Occupy Point to 1, and set the
Instrument Height to 1.650m.
Select Backsight Direction, and set the
direction to 0 degrees.
Then press the Target Height button.

Set the Target Height for IR EDM to 2m, and
then press OK to return to the Occupy Point
screen.

Press the Observe Backsight button to
return to the Map Screen.

The measurement mode button “BS
Ang/Dist” indicates that we will be taking an
Angle and Distance shot to the backsight.
In other situations, if you want to shoot the
backsight by angles only, press the
measurement mode button to choose
Angles Only instead of Angles & Distance.

From the map screen, press the Measure
button (or your Enter key) to take the shot.
Normally this will trigger your instrument to
take a measurement, but because you are in
Manual mode it will prompt you to enter the
angles and distance manually.
Enter a Horizontal angle of 0, a vertical
angle of 89.12345 and a slope distance of
25.123. Then press OK.

It will now let you review your backsight
information. Ensure that your HI and HT
were set correctly.
When connected with your total station, you
may be able to choose a Plate Setting
option to zero your instrument onto the
backsight point if your total station supports
this ability.
Press Accept.

When it asks if you would like to store the
measured backsight point, press Yes.

It will now ask for the point ID and
description for the backsight point we just
shot. Give it an ID of 2, and a Description of
POST.
Note, you can not change the coordinates of
a measured point.
Then press Store Point.
Select Yes if you are asked if you want to
add the description POST to your project
automap library.

You will then be taken back to the map
screen. Press the Zoom Extents button
to see the entire job so far. Because we
have completed the setup process, you will
now see an instrument icon displayed on the
setup point (1) and a prism pole icon
displayed on the backsight point (2).

Measuring the Site (Traversing and Sideshots)
Because we do not have a clear shot to the
other two property corners, we will have to
traverse to a new location where we can
shoot them. To do this we will need to
ensure that we have the measurement
mode set to “Sideshot”. If it says “Sideshot
(Auto)” then press the measurement mode
button to change it, and then select
Sideshot.
Depending on your program settings, this
may default to either Sideshot or Sideshot
Auto.

Press the Measure button or your Enter
key to take the next shot.

Enter the Horizontal Angle 54.32123,
Vertical Angle 89.01234, Slope Distance
22.876, and then press OK.

Ensure that Point ID = 3, Target Height =
2m, set the Description= HUB, then press
the Store TR button to store this shot as a
traverse shot.

This leaves us still setup on point 1,
backsighting 2. We need to advance to the
next setup point 3, backsighting 1.

Press the Measurement Mode button (it is
the button above the Target Height that
currently says “Sideshot” then select Occupy
Point.

Make sure the Occupy Point is set to 3.
Enter the new instrument height at our new
setup, 1.7 meters.
Select the Backsight Point method, choosing
Backsight Point 1.
Make sure the Target Height is still 2m.
Press Observe Backsight.

Note that the mode is “BS (Ang/Dist)” and
that the target height is 2m. Press the
measure button to shoot the backsight.

Enter the following shot information back to
point 1: Horizontal Angle = 0, Vertical Angle
= 89.20555, Slope Distance = 22.874

It will now let you review your backsight
information. Ensure that your HI and HT
were set correctly.
Because you have backsighted an existing
point, you can ensure that your backsight
errors are tolerable.
Press Accept.

You will now see the instrument icon on
point 3 and the backsight icon on point 1.

All we have left now is to pick up the last two
points. Press the measure button.
Enter Horizontal Angle = 141.0608, Vertical
Angle = 89.0022, Slope Distance = 12.5432,
then press OK.

Ensure that the point id number is 4, target
height is 2m. Enter the description POST
then press Store SS to save this shot as a
sideshot.

To pick up the last pin, press the measure
button.

Enter the shot information, HA=291.4527,
VA=89.0011, SD=13.502 then press OK.

Ensure that PointID = 5, Target
Height=2.000m. Description=IP, then press
Store SS.

We have now picked up all four property
corners.

Rotating your Job to match a Plan

Now that we have finished shooting the property, we may need to rotate it if you want it tomatch
an existing survey plan. The plan (as shown on page 1 of this tutorial) has the property line
between the two IP’s (our points 1 and 5) at an 85 degree azimuth.

Press the FieldGenius Start icon, then Calculations, Rotate/Translate/Scale.
© 2005-2007 MicroSurvey Software Inc. Page 11 of 15
FieldGenius 2008 v3.2.0 Tutorial 2

Let’s say we want to hold point 1 fixed at its
current assumed position, so set the
Rotation Base Point to point 1. We can do
this by either typing 1 into the Rotation Base
Point field, or by double clicking in the
extended edit field (the red bar in the field
indicates that it is an extended edit field,
which means that double tapping in it will
launch a related command) and then
selecting point 1 from the map view.
Then select Direction Difference for the
method to use. For the Original Direction,
we want to get the inverse between points 1
and 5. To do this, you can either type 1..5 in
the Original Direction field, or launch the
inverse command by double clicking in the
extended edit field and picking Inverse from
the list that appears. Set the Destination
Direction to 85, then press Adjust Points.

We want to adjust all five points, so enter
1..5 or 1-5 as the point range, then press
OK.

You will see a message indicating that 5
points were processed. Press OK.

Because we have moved our backsight
point, a message appears reminding us that
our previous setup is no longer valid.
Press Continue.

You will then see the rotated points, with
1..5 now lying on an 85 degree azimuth.
You may need to click the Zoom Extents
button to see the entire job.

Inversing to get property line information

Now that we have all of the pins shot, we should check the inverses to make sure everything was
picked up correctly, and that our property lines are accurate according to the plan. If we inverse
completely around and close back on the starting point number, FieldGenius will also calculate
the area and perimeter.
Click the FieldGenius Start icon, then
Inverse.

Tap on the points in the map screen in the
order you want to inverse. Tap on point 1,
then 2, then 4, then 5, then 1 again.

Because we have now closed back to the
point we began inversing from, FieldGenius
will also calculate the area and perimeter.
Click on the Information button, then
scroll down in the information toolbar to see
these values.

Cick in the information toolbar to get a full
screen view of the results. Press Close
when you are done reviewing it, then press
the red X to close the Inverse toolbar to get
back to the main interface.

All of the Inverses we calculated above are
saved with the project, so we can easily
review all of the calculations without having
to re-enter the inverses. Click on the
FieldGenius Start icon, then Menu Home,
Survey Tools, COGO History Viewer.
You can review all of the results at once.
This is a good place to confirm that our
property lines do match what was expected
by comparing it to the original plan. Press
Close to go back to the main interface.
© 2005-2007 MicroSurvey Software Inc. Page 14 of 15
FieldGenius 2008 v3.2.0 Tutorial 2

© 2005-2007 MicroSurvey Software Inc. Page 15 of 15
If desired, you could also draw a figure
representing your Property line, using the
same method discussed in Tutorial 1.

Summary

Congratulations! You have now used FieldGenius 2008 to manually measure a lot. You
occupied a point, traversed to a new occupy point, and took some sideshots. You used RTS to
rotate your project, and you used Inverse to calculate the property lines, area, and perimeter of
the lot.

Tutorial 2: Measuring a Lot
Introduction
Starting the Job
Occupying a Setup Point
Measuring the Site (Traversing and Sideshots)
Rotating your Job to match a Plan
Inversing to get property line information
Summary

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