DWG Layer color changes when linked in Revit

[s.koulis]

Hello,

I am trying to link a DWG (ordnance survey) in a blank Revit file and preserve the Layer colours.

I have set all objects in AutoCad to colour by Layer and I link using "Preserve" the resault is a bit strange as you can see in the attached image.

for example colour 253,219,175 is changed to 255-223-127 which is quite close but others are more random 219,255,188 is changed to 204-204-204 which is from light green to grey....

Any ideas as how to troubleshoot this...?

Thanks

[ennujozlagam]

hi, you can try this link. hope it helps.

http://lineshapespace.com/3-steps-to-linking-dwg-files-into-revit/

[s.koulis]

Thanks for this,

Unfortunately it does not help explain the issue...

I have done another test for this:

I created a new DWG in AutoCAD 2014 and used some ACI colors and some RGB ones, I also named the layers to reflect the color and have all object properties SETBYLAYER
I linked this in Revit 2014 an the resault can be seen in the attached image...
Most of the ACI colors where translated to correct (from a list I found online) RGB values except one
(Layer with ACI 245 was given the RGB values of 247)
The RGB layers started to be all over the place a black (RGB 0,0,0) became brownish (RGB 38,0,0) The pure red green blue values were translated to Red Green Blue Revit colors and some other shifted.

Any ideas on this?

Thanks

[efficientbim]

I have the same problem. Managed to fix this?

[barthbradley]

Hello @efficientbim. What is "the same problem" you are having?  RGB color representation? 

[efficientbim]

My problem is that I have a 0,0,0 RGB in my AutoCAD and when I import to Revit that same layer shows up as 38,0,0 RGB.

[barthbradley]

How did you determine it was 38,0,0 in Revit? 

[efficientbim]

'vg' -> object styles -> Imported objects

See attachments in previous posts to see what I mean.

[barthbradley]

Okay; so you know how to correct. That's useful to know because the Autodesk Knowledge Network warns us that "RGB colors may not be a 100% match to the original file".  

[hanslammerts]

My workaround is this.

Store and use a seperate DWG for linked-in Revit.

Tweak dwg to 'fix' revit problems / needs

[hanslammerts]

The compatibility between these still has some minor issues.

Doing 'civil with revit,' my workaround is this.

-Store and use a seperate DWG for linked-in Revit.

-Tweak dwg to 'fix' revit problems / needs.

-Delete what is not needed, move to origin and undo form all AEC definitions.

-Keep 3D and 2D seperated in DWG fils.

[barthbradley]

I got another trick for you...rename the RGB 0,0,0 layer in the AutoCAD drawing (something brand new; never imported), and then re-import into Revit. Betcha a buck the RGB comes in correct.