How to convert coordinates in DGN to WGS84
Is there any formula to calculate latitude and longitude
Give me a hint
I want to find the formula to calculate latitude and longitude
Not so easy as it depends on input coordinate system.
Here is a formula in PHP to convert to/from UTM to WGS84
gist.github.com/.../8654c9bb3f62e6a6c201b11075ad5905
Indeed, not at all easy. Once you know what your DGN coordinates are, you can find a formula, maybe even a ready made Excel spreadsheet to do that. Search on geodetic and/or surveyor's web sites. Back in the bad old days, we had to do this sort of thing a lot. Quite the pile of numbers.
For the last 20 years I've simply used Corpscon from the U.S. Army Corps of Engineers for single point calculations. We're supposed to be getting new datum this year, redefining the geoid once again. Good news is they're going to eliminate the US Survey Foot, which has often been a real trouble maker.
Connect r17 10.17.2.61 self-employed-Unpaid Beta tester for Bentley