Ish Posted March 5, 2022 Share Posted March 5, 2022 Dear Any lisp program or trick to make make label of point or any pick location coordinate XY and lat long. I have only autocad other software not allowed. See attached image Thanks. Quote Link to comment Share on other sites More sharing options...
BIGAL Posted March 6, 2022 Share Posted March 6, 2022 There is xy to lat long out there but need a world co-ord file to match your location for the formula used. 1 Quote Link to comment Share on other sites More sharing options...
Ish Posted March 7, 2022 Author Share Posted March 7, 2022 On 3/6/2022 at 4:46 AM, BIGAL said: There is xy to lat long out there but need a world co-ord file to match your location for the formula used. Any add-in or VBA program for AutoCAD sir, I search on cadtutor but not found and other search engine also. Quote Link to comment Share on other sites More sharing options...
BIGAL Posted March 7, 2022 Share Posted March 7, 2022 It is out there keep digging. I use Civ3d built in. Quote Link to comment Share on other sites More sharing options...
eldon Posted March 7, 2022 Share Posted March 7, 2022 The E and N coordinates are based on the Universal Transverse Mercator coordinate system. This is a map projection system that allows mapping of a curved surface to be drawn on a flat surface. The world is divided into 60 zones with a designated central meridian and a scale factor at the central meridian. Added to these 'official' zones, there are many local zones which fit the mapping area better. So, for a lisp that covers the whole world, there are a lot of constants that have to be applied to each zone. The likelihood of a philanthropist lisper who would put out all this work as a freebie is vanishingly small. But I wish you the best of luck in discovering this golden pot. For the rest of us, the lisps available generally use the built-in functions in Civil3D, Land Desktop and Map. If you only have basic AutoCAD, then your best way forward is to do the conversions manually form the many sites available for free on the web. 1 Quote Link to comment Share on other sites More sharing options...
Steven P Posted March 7, 2022 Share Posted March 7, 2022 I did have something half written but got distracted, I think Christmas holidays finished and I had to do work again. I couldn't find anything much out there all ready written to convert XY to Latitude / Longitude that fitted what I wanted accurately. There are conversion websites out there and some have the formulas available so might not be the exact LISP you need but there might be the formulas to use and you can work from there Noting as above each part of the world have different constants to use so you'd need to find your local ones 1 Quote Link to comment Share on other sites More sharing options...
BIGAL Posted March 9, 2022 Share Posted March 9, 2022 There is a formula to lisp code out there it may work but the lat long is complex formula. Some thing in the last month maybe at forums/autodesk. Quote Link to comment Share on other sites More sharing options...
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