Machine Control Solutions
Make
your work more efficient
pg. 21
2.5
Topo Points
Topo points are used when creating a topographical map of a surveyed area. They give accurate
Northing, Easting and Elevation (NEZ) at each point on the map. They are stored as an (.nez) file.
2.5.1
Use Provided Topo
To use topo points sent from an emailing source you must download and then unzip them into a
findable location. Now open the DITCH application, then the Topo Points setting and select
Open
, and find the folder containing the files. Select the file and open it.
2.5.2
Create New Topo
To start creating a topography map, find a starting point at the edge of an area that needs to be
surveyed. Follow a path around the surveying area that keeps the points within 50 feet of each
other and covers the whole site area. For the most accurate map, keep your points as close as
possible without constantly overlapping them and fill in the map.
a.
Press the
Collect
button in the left margin.
b.
Choose a file name and folder for your topo survey and press OK.
c.
If the file already exists, you will be asked if you want to append survey points to
the existing file or clear all existing points and start new. Choose Clear if this
happens.
d.
The word “Collecting” should
appear in the upper-right part of the screen.
e.
Move the GPS antenna in a pattern to perform a survey. A new yellow dot should
appear whenever the GPS antenna moves 10 feet.
f.
To temporarily pause the collection of new topo points, press the Pause button in
t
he left margin. The word “Collecting” should change to “Paused.” No new yellow
dots should appear.
g.
To resume collecting topo points, press the Resume button in the left margin. The
word “Paused” should change back to “Collecting.” New yellow dots should ap
pear
whenever the GPS antenna moves 10 feet.
h.
When finished collecting points, choose Topo Points and then Stop Collecting from
the Options menu (
⋮
). The word “Collecting” should disappear.
2.5.3
Resume Previous Topo
a.
Close the app by selecting Exit from the Options menu (
⋮
). Topo points are
automatically saved every 20 seconds.
b.
Restart the app.
c.
Press the
Connect
button in the left margin.
d.
Choose your GPS device.
