State Plane Coordinates are ObsoleteSurveyors measure angles distances in a variety of configurations. We make maps from those measurements. Maps ar...
There are times when a single grid scale factor is applicable to the entire line - depending upon the tolerance desired, maybe a mile or two.For longe...
Education - my revised perspective - another "right" answerThanks to those who read, think, and post. I believe that assimilating and sharing ideas h...
LINK to a recent Linkedin discussion ...Thank you - that is the link I was looking for. I follow threads on surveyorconnect more closely than I do L...
This thread raises a number of legitimate questions. No, I don't have answers for all the issues but would like to look forward. I am of the opinion...
Good question and interesting discussion - 1. How "exact" do you need the answer? For example, an elevation factor to 8 decimal places will provide ...
A similar question is why balance backsight and foresight distances when performing precise leveling? My comments apply to both stiff-legged tripods ...
Physical fact - meridians are not parallel.Basic concept - the difference between grid north and true north is determined by selection of the central ...
Ask your vendor. The GPS community is well aware of all the GSDM concepts. Those concepts are inherent in the underlying computational process. But...
See #7 and #54 on the same list as above.
In this case, I'll suggest that you can have your cake and eat it too.The global spatial data model (GSDM) allows you to preserve the "big picture" ge...
Sounds like an exciting project. Two sources of information you may wish to consider are: 1. Elevations and the Global Spatial Data Model 2. One ...
At the risk of being cynical, "no job is difficult if you have the right tools . . . and use them properly."My suggestion has already been implemented...
This thread and associated links contains a lot of valuable information - and some misleading information as well. Being gone all weekend, I did not ...
Computing geodetic azimuths can be fairly easy if one uses the global spatial data model (GSDM). The geodetic azimuth (forward) from "here" to "there...
All;I apologize for not keeping up and responding to posted inquiries.I just returned from a 4-week 6,200 mile road trip that took me to Virginia wher...
Scott and I worked through numerous comments and appreciate all who made the effort to respond. Thank you. The original paper and a preliminary summ...
Proposed Basis-of-Bearing - FollowupThanks to everyone who took the time to contemplate and respond. I sincerely appreciate your input. As it stands...