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Re: [libredwg] Where is lineweight in a layer?

From: Till Heuschmann
Subject: Re: [libredwg] Where is lineweight in a layer?
Date: Thu, 28 Apr 2011 10:56:58 +0200

LibreDWG uses the Dwg_Object_LAYER struct to read a LAYER.
The lineweight is stored in the 'values' variable, according to the spec
you should mask it with 0x03E0 (valid for R2000 and newer files).


I am pretty sure the DXF spec states it's possible. This is something that LibreDWG already does,
but I should read teh spec for sure, right?? :)
Saving and loading a DWG with draftsight also reveals that the lineweight is loaded back.
with the drawing. I will see if I can look a bit further...


On Apr 24, 2011, at 11:20 PM, Rodrigo Rodrigues da Silva wrote:

On 24-04-2011 13:28, R. van Twisk wrote:
Hey Guys,

I am looking for the lineWeight parameter for the layer.
Unfortunately I cannot find it (similar to a entity).

Anybody happen to know where I can find it?

I looked on LAYER and LAYER CONTROL entities and couldn't find it either.

Maybe the format cannot store a "by layer" linewheight, and the
application just applies a linewheight to all objects in a layer?

Did you look for it in the DXF spec? (don't have the link right now but
you can find it easily at

Rodrigo Rodrigues da Silva

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