Your coordinate system library is not available

[JesusSubires]

I have a drawing that I want to geolocalise.

The coordinates of the drawing are set in Geographical coordinates from Belgium (Belge72 i.e. EPSG 31370).

During the geolocalisation procedure (Insert/ SET LOCATION /FROM MAP), I get the message "Your coordinate system library is not available".

As a result the drawing and the map do not overlap properly.

Is there a way to get and install geographical coordinates library for Belgium?

Thanks.

[cadffm]

Hi,

also in a NEW acadisolt.dwt based DWG ?

What is your productversion? Command: ABOUT

[JesusSubires]

Indeed when creating a new drawing from acadltiso.dwt, the message does not appear.

Product Version: R.154.0.0 AutoCAD LT 2021.1.1.

[cadffm]

Ok, then please share this dwg (you can erase all normal cad objects and saveas Copy, if you like)

[JesusSubires]

Herewith a copy the drawing.

I have erased a large part of the original objects.

Thank you

[cadffm · Accepted solution]

That's normal because you changed the units! (right?)

Your File is set up to use imperial units, but you changed to Meters and in this case (or for the opposite cases)

you get this message.

The question is: How clever is it to use meters in a imperial setting(DWG) ?

The main thing for MEASUREINIT is controling default hatchpattern- and linetyp-definition,

but also for initial aec- setups and more. It seems GEOLOCATION is one more command

what is looking for this setting.

[JesusSubires]

The drawing is not in Imperial Units.

Please see attachment.

I am not sure to follow you .

Yes I was requested to confirm Drawing Unit (i.e. meters) during "Geographic Location - Set Coordinate System' procedure.

[cadffm]

This a a nice dialog, but has nothing to do with it.

Read more about measurement  in your help[F1] or ask your mentor (if available)

[JesusSubires]

Noted.

But how to get the drawing properly set on the satelitte image?

Furhter to your previous memo, I have used MEASUREMENT instruction to turn the drawing back to metric (value <1>).

I have proceeded afterwards with SET LOCATION /FROM MAP.

But the drawing is still offset compared to the satellite image.

PS/ The drawing is effectively drawn in meters.

When I import it in a GIS, there it fits perfectly.

[cadffm]

Hey, we don't have your data, how should i see what's going wrong?

And for me: I am not an expert about geo-locations, but we have somebody in our community.

Upload your file an tell us where it should be (coordinates and it would be perfect if we would have a lake, house or something like this to "see" the issue.).

My only try: Are you sure it is just "moved" to the wrong location, but the size is correct?

Just a question.. because we can not check this without your cad data.

I am out, the topic-issue is solved! I think an expert will check your DWG