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jserjeantson
482 Vistas, 3 Respuestas

Georeferenced site plan with external image?

Hello,

 

I'm trying to create a georeferenced site plan using an external image in Vanilla AutoCAD. I have the image and drawing loaded, take a known locations lat/long off of google maps, then use 'Set Location'. However, it's hard to tell how well lined up everything is, given the AutoCAD imagery is terrible. I've tried using a .kmz file as well without any luck, it just redirects me back through the 'From Map' prompts. I've also set it to UTM83-8, NAD83 but when I try to confirm the coordinates given on AutoCAD with an online converter the numbers are totally out to lunch.

 

Image and drawing overlaying AutoCAD map imagery:

jserjeantson_0-1676578175655.png

Just AutoCAD map imagery:

jserjeantson_1-1676578263686.png

 

Some macrofeatures appear to be off but its hard to tell given the poor resolution.

 

I also see no option to change imagery in the geolocation tab:

jserjeantson_2-1676578324970.png

 

Any resources or suggestions would be much appreciated.

 

fkellogg
en respuesta a: jserjeantson

I use Command: GEOGRAPHICLOCATION Set location from [Map/File]<Map>:

Select "Map"

This brings up a dialog box to enter an address, and you can pan around to where you need to be.

I use the "Road" view, which gives me a very un-cluttered street map view.
I enlarge the window as much as possible, and take a screen shot of it, to paste into Paint and zero in on what I want.


This may not be what you need, but when I found that I could get a clean map without all the Commercial B.S. I was pretty excited, and took the opportunity to share this.

 

CFKellogg

pendean
en respuesta a: jserjeantson

@jserjeantson Unless there is something about that location that has restricted satellite imagery, the MAPS feature in plain AutoCAD is pretty darn decent for non-Civil work here for us, no better or worse than Google Maps.

Perhaps you need to be using the MAP3D or C3D variants for your line of work? They have more tools and options I believe.
jserjeantson
en respuesta a: pendean

The location is in the Yukon, so it makes sense the imagery is poor. But even compared to Google's it's utterly horrendous. Not sure Civil3D is entirely necessary. This is just for a 2D site plan that needs to be georeferenced as per submission guidelines to AHJ for the beginning process of the project.

 

Before this post I sifted through a lot of videos but just found this one:

https://www.youtube.com/watch?v=l8SJkCdbmrg

 

Seems to be pretty much exactly what I need, will try this and mark as Solution Accepted if it works as I hope.