Traverse PC and KML
For all you Traverse PC Connection members out there, we’re going to have quite a treat for you in the next release. Those who have used Google Earth know that it’s a fun and nifty tool for hobbyists and professionals. At Traverse PC, we love fun and nifty tools so the decision to add Google Earth’s KML files into TPC was a simple choice.
Google Earth handles what are known as KML files. KML is a special file type that GE (Google Earth) uses to render lines, polygons, points, colors and etc. These lines, polygons, etc. are placed at a Latitude / Longitude and GE does all the rendering for us at that location. If your survey uses geodetic positions then you can export your data and send that KML file to a client and let them view the survey inside of GE.
TPC’s KML module can export anything that you can select in the What List. You can export Surfaces, Traverses, Points and Drawings. Exported drawings include entities such as lines, circles, arcs, polylines and rectangles. Google Earth’s KML files are somewhat limited in that they do not support text entities or point symbols. Google Earth does place their push-pin symbol at the location of the TPC points.
I had the most fun in implementing KML when I started to work on surfaces. It was lovely being able to see the exported surface’s major and minor contours follow the geographical features of the terrain in Google Earth. Clients or surveyors who receive a KML file can now view beautifully rendered surfaces, traverses and points right in Google Earth.
I’ve talked about what TPC can export to KML, but what about importing KML files? It’s easy. Anything that TPC originally exported can be brought back into TPC with no problem. TPC can also read KML files from other sources as well.
KML in Traverse PC will be here soon for all of our TPC Connection members. The rest of you will have to wait until 2016. So keep an eye out for TPC Desktop 2015 R1 this spring.
Oliver Bochsler, Software Developer