I need a little clarification. I understand that SU has its own origin and when bringing in a file from autocad it has its own origin. I’m going to try explaining as precise as I a can because its clear in my mind what I’m asking but wording it right might be a little more complex. I’m asking for clarification for the purpose of shade studies which might get you on the same page as I.
First, is SU origin a default geographic specific location? When I bring in autocad file and say check keep model origins it gets placed far from SU origin. My thought process for this is because SU origin is located at some given geographical coordinates, lets just say Charlo MT, and my autocad model is located in Newport Beach CA.
Nowhere on the web discussions have I seen it explained as such. Everyone just say use google to geolocate the model. Following their advice if I have autocad file placed at SU origin and then geolocate using google, really all it seems to do is help locate my autocads orientation and Z value correctly.
My worry is that though I get the orientation and Z value correct, sun studies will have different results between Charlo MT and Newport Beach CA at 6:00 pm July 4th. BUT I wonder when i geolocate with google, google then tells sketchup the model is now at this give geographic area and treat it as such. I would then understand why everyone says just geolocate it with google.
I’m wondering how many people are lost with my explanation. Shade studies are important and obviously you’d get different results between NYC and Rio at the same exact time. I need to make sure I understand this to get accurate results.
I think I can perform my own test. Place a model at SU origin. Geolocate it in the northern hemisphere somehere, then geoloacate it again in the southern and see if the shade studies are different at the same date and time.