![import 3d line in trimble survey controller import 3d line in trimble survey controller](https://s3.manualzz.com/store/data/034170989_1-7643ea937137d2166a751349e6fd3074-360x466.png)
Now it’s time to export the corrected COR file to a DXF file. View the estimated accuracy summary to insure you got acceptable results based on the specifications of your GNSS system and your project accuracy requirements, if any.
![import 3d line in trimble survey controller import 3d line in trimble survey controller](https://img.yumpu.com/32149076/1/500x640/trimble-survey-controller-software-accupoint.jpg)
IMPORT 3D LINE IN TRIMBLE SURVEY CONTROLLER DOWNLOAD
Take your GNSS mapping system into the field and occupy as many locations as you found, being careful to hold the antenna over the point and collect the necessary number of positions (10-30) to insure an accurate observation.īack in the office, download the file and go through the differential correction wizard to post process the data, making sure to use a base station as close to the project site as possible that also has the correct reference datum along with a high integrity index. We recommend that you find at least 4 or 5 of these locations to produce a good result. Typically you can find several points on the drawing that you can also occupy with your GNSS mapping system. In order to get your drawing to into TerraSync as a background file using a known coordinate system, we must study the drawing to determine if there are points (locations) in the drawing that can be recognized by going out into the field and occupying those points.Įxamples of this are road intersections or individual features like survey control points or property corners. The first option is the easiest and probably the one that most users would choose. Since there are two ways to create successful communication between these two systems, you first must decide that either 1) you want to assign a known spatial reference to your AutoCAD drawing, or 2) you want your GNSS system to adopt the arbitrary coordinate system that the AutoCAD drawing is using. During the course of providing training for our customers who purchase a GNSS mapping system, we often get asked, “How do I get my AutoCAD drawing into TerraSync?”ĭepending on how AutoCAD is used, the drawing could have a known spatial reference or it could have an arbitrary coordinate system defined as the lower left corner of the drawing as “zero-zero.” Since GNSS doesn’t understand what zero-zero is, we have to transform that drawing to a known coordinate system or get the GNSS mapping system to understand the arbitrary reference system used by the drawing.