CEC Dealer Forum
CEC Dealer Knowledge Center
MGIS Distributor Community
Geospatial Forum - Public
Trimble Connect - User
Civil Engineering and Construction Forum - Public
Mapping and GIS Forum
View All Forums
to create and rate content, and to follow, bookmark, and share content with other members.
Topcon machine control set up, with a Trimble calibration?
Question asked by
on Apr 16, 2019
on Apr 17, 2019 by Guest
Show 1 Like
Is it possible for Topcon to use the Trimble DC file with the site calibration?
No one else has this question
Mark as assumed answered
This content has been marked as final.
Show 1 comment
(Required, will not be published)
Add a reply
Apr 17, 2019 7:13 AM
Create a TopCon Calibration file, surface and linework
Trimble project .cal file
Trimble/Carlson surface file exported as a .xml
Trimble/Carlson linework exported as a .dxf
This is the procedure for creating a TopCon .gc3 calibration file. You will have to match up the measured Lat Lon Height of the control points from the Trimble calibration report to the grid values of the control points.
Open new Business Center Project
Save project as "…"
Drag and drop ".cal" file into your Business Center Project
Under the Project tab click on "Site Calibaration"
Calibartion Settings dialog box opens
Check box for "Horizontal Calibration" (Note do not check "Set Scale factor to 1")
Check box for "Vertical Calibartion" make sure "Verical Shift + Incline Plane" is selected
Geoid model: None
Select "Compute" at the bottom of the dialog box.
(A dialog question box will ask "Old calibration results will be deleted! Do you want to continue?" Select "Yes"
The Site Calibration dialog box will have the "Results" residuals for your control points Select "apply and Okay"
Go to "Reports"
Select "14 Site Calibaration Report"
File save as type "Wedpage,complete(*.htm;.html)" make sure the File name has the ". html" extension
Close Business Center
Open "Topcon 3-D-Office"
File "New" save project as "…"
Under "Project tab" select "Control Points"
A control ponts dialog box will open select "ADD"
Open the .html file which you created from Business Center(This will give you the GRID POINT Point #/Northing/Eastng/Elevation & GNSS POINT Latitude /Longitude/ Height
Use the "GRID POINT" data Point #/Northing/Easting/Elevation for the Box North/East/Elev (you can copy & paste this data )
Use the "GNSS POINT" Latitude/Longitude/Height for the WGS84 Latitude/WGS84 longitude/WGS84 height Boxes. (If you copy & paste after you paste you will need to erase the "N" /degree sign/all symbols. Add a period only where the degree sign was"
The Horizontal will come in as "North" (if for some reason your information is South add a "-" negative sign before the Latitude numbers.)
For the Longitude you will need to add a "-" negative sign before the Latitude as your information is "West" (Nothing in front of the longitude numbers will be "East")
Copy and paste the Height informaiton
The control point will appear on the project screen.
Repeat this process for all your control points.
Once all control points are added and are on screen under "Project" select "Export Control Points" to "to 3D control file(*.GC3)…
You will send this GC3 file with the linework (.LN3) & surface (.TN3) once converted
To convert surface & linework files:
You will now need a ".xml" file from your tin surface &".dxf" line work file Bring in your surface file first-
Select "TIN"/ import Tin from Land XML file
The triagulation will appear on screen.
Click anywhere on your triangulation - right click and select "
set (surface name) as active tin
Under TIN tab select "Export current surface" to 3D TIN file(*.TN3)…
Select "Linework" / import linework/ from Auto cad file browse to your dxf linework drawing
The linework will appear over your surface triangulation
Make a window around all your linework to select the linework while highlighted go to "Linework" > "Select highlighted linework" > "to 3D linework file(*.LN3)…
Store the exported files in S:\GPS Department\Projects\XXXX-Project Name\5. Data\Current Field Models\TopCon\XXXX design name
Send the .GC3 & .TN3 &. LN3 to the field.
Show 1 Like
Retrieving data ...
Offset Line and Side Slope Issue
Why do I have less satellites used then satellites tracked?
how do you add a local site calibration from SCS900 to the Coordinate system Manager?
SCS900 New Datum Create