Triangulation from TS / theodolite data
Hi,
I’m wondering what software options exist to calculate positions of points, as observed from two known control points.
Context : I’m measuring features inside a building, and I’m using an older TS (Wild TC1000) that doesn’t do reflectorless distance. So basically using it as a theodolite. For some features (mapping floor height), I’ve used a prism, but working alone is tedious and only gets worse for other features ( walls, windows, stuff on the ceiling etc).
It makes perfect sense (to me) to just setup the TS on control point A, measure azimuth+elevation to all the features; then setup TS on point B, and measure Az+Elev on the same features. Solving for the intersections is then a simple trig problem. But either I’m not looking for the right thing, or no software I’ve seen has something already available for this ?
I’m using a TSCe to save data, but I don’t think it can do these calculations. I checked in “Trimble Total control” (old stuff !), and couldn’t see anything obvious. QGIS may have some plugins for this, but nothing stood out at first glance.
Sure I can hack together a spreadsheet to do the math, but… hasn’t this wheel already been invented many times over ?
Thanks!
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