I am working on a new property where we will need a home and several buildings. Detailed Topo Elevation data seems hard to find as the area is rather rural.
Having built a spreadsheet of test XYZ data and importing that into CA/Home Designer worked quite quickly to produce a terrain surface. Since that worked well, I would like to take a handheld GPS and walk the property and develop a elevation point grid to have a relatively accurate terrain model to design on. The elevation over the property likely varies about 100 feet. An minimum accuracy of within 5 feet would work for this project.
I would be interested to hear from users that have tried using GPS points to build terrain models and get any info as to how well it worked. Possibly what GPS units were used as well.
I would really appreciate any suggestions and advice about how to gear up for this so as to avoid reinventing the wheel :^)
Glad it worked for you Bruce & Mike. Wow Bruce 500 point markers, that took a few minutes.
Scott & Perry
Navigate to your lot. zoom in so you can see lot boundary lines.
Place about 100 + markers over your lot or area. Chief extrapolates the contours better with more points.
Then export the waypoints.
Then import the gpx file into chief using the gps import function. Rebuild terrain and presto!
Here is a file that I made about 220 or so points. It is in Steamboat CO.