PDA

View Full Version : DWG import and poly connecting?


Ernest Burden
04-10-2008, 03:48 PM
DWG import does not have the 'connect by...layer...color..' option that DXF does, and indeed, it does not connect polys. I have to do this manually, and its tedious. Am I missing something that would allow normal connection of polys that are on the same layer/color?

Per-Anders
04-10-2008, 04:23 PM
Is there any particular reason you're not using the "Keep NURBS Objects" option in the prefs? With regards connecting the poly objects I can't see your scene, but you shouldn't have too many problems running optimize with a very low tolerance threshold, DWG imports pretty cleanly in my tests.

Ernest Burden
04-10-2008, 04:38 PM
Is there any particular reason you're not using the "Keep NURBS Objects" option in the prefs?

No, I'm using it.

connecting the poly objects I can't see your scene, but you shouldn't have too many problems running optimize with a very low tolerance threshold, DWG imports pretty cleanly in my tests.

Optimize will merge a list of poly objects into one connected poly object? Even if it does, it means you still have to manually select all the poly objects to connect in a way you do not have to when importing the same file with DXF.

The reason to use DWG is to read blocks in as Ref. objects.

Speaking of which, I'm sad to note that the DWG import does not nest blocks, meaning if the block had another block as a sub in the CAD file (ex. a kitchen block which has a sub block of a dishwasher, fridge, etc.) that ref. object should come in under the main in C4D, but it/they do not. That's an improvement we need to make, nesting blocks is common and powerful.

lllab
04-11-2008, 10:55 AM
i also have the exact same problems as ernest.

the dwg import would maybe needs some small additions to make it more usefull for architectural projects.

it is nice that it brings in the layers. but for the orgnanisation, some better structuring and the poly merge would be very fine. also an option to automegre layers, polygons and splines seperated would be great.

cheers
stefan

Ernest Burden
04-11-2008, 02:31 PM
OK, so I'm not missing a setting to connect my polys with DWG import. How did this get through beta-testing without someone pointing this out? All it needs is to use the existing DXF import abilities.

The lack of nesting blocks is big. I'm SO happy we have this import option for layers and blocks>Ref. objects, but it will need some additional function to be up to the standards of every other 3D program normally used for architecture.

I'll have to modify my workflow in the meantime. Perhaps we should explode our blocks and export as DXF so the polys get connected properly, then copy/paste the results into the master Ref. objects in a DWG import. That's still easier than manually connecting thousands of polys across multiple objects/layers. And of course, manually nest Ref.s into other Ref.s.

JoelOtron
04-11-2008, 03:09 PM
I have some questions as well.

When dealing with poly line dwg import--the lines are there--but I cant seem to do anything with them. I was thinking it would be good for importing the object profiles and extruding with extrude nurbs to create some basic shapes that you could build out, but it seems like all segments are brought in separately. For instance (this is a simple example) you bring in a square polyline object via dwg, and in my tests each side of the square is a separate line as opposed to a closed square shape that I could extrude from. Ive only tried one dwg file so far--so it may be how it was constrcucted.

ALSO--I thought maybe I could render my lines via S&T---but they dont show up when "splines" are selected. I guesss because these arent splines.

Last question- the language comes through as French when importing dwg files only (dialogue boxes and all attributes manager/Object manager text).

lllab
04-11-2008, 04:07 PM
well everybodys workflow is a bit different, but i hope maxon will hear our wishes of the "real world architectural users" here and give the dwg import a next step. the potenial of this feature is very big, but i think it is not yet 100% done to be perfect.

i am new to betatesting and could not test v10 or 10.5, but i will try my best to convince maxon for the needs of architecural or archviz users reagrding dwg and others. would be nice to collect and structure those wishes .

i do think this is a very important format, if we like autodesk or not;-)
cheers
stefan

p.s the erros messages are french as the dwg connection was written by the same people that did some stuff similar for vectorworks, i think these arevery talented guys, their language is french though (canadien or french european)

georgedrakakis
04-11-2008, 09:50 PM
I was thinking it would be good for importing the object profiles and extruding with extrude nurbs to create some basic shapes that you could build out, but it seems like all segments are brought in separately.

hi JoelD,
it is better to organize the dwg before exporting -> using PE (polyline edit) or BO (boundary) commands (or FI (fillet) in some cases). this way you will end up with some basic polylines shapes
(single objects).


ALSO--I thought maybe I could render my lines via S&T---but they dont show up when "splines" are selected. I guesss because these arent splines.

actually they do.
this is a simple scene with 3-4 objects instead of a bunch of lines.

JoelOtron
04-12-2008, 02:34 AM
thanks george for the feedback

monsterfish
04-12-2008, 07:57 PM
I have some questions as well.

When dealing with poly line dwg import--the lines are there--but I cant seem to do anything with them. I was thinking it would be good for importing the object profiles and extruding with extrude nurbs to create some basic shapes that you could build out, but it seems like all segments are brought in separately. For instance (this is a simple example) you bring in a square polyline object via dwg, and in my tests each side of the square is a separate line as opposed to a closed square shape that I could extrude from. Ive only tried one dwg file so far--so it may be how it was constrcucted.

I had the same experience and I second that it would be nice if the segments came in connected. It's not terrible joining them but it does eat up some time when you have a bunch of profiles to do. I don't have any other apps that open DWG files so I have to take them in the way they are.

It is nice being able to at least import them though.

belushy
04-14-2008, 09:00 AM
Rhino offers this option that "polylines are not exploded during export"
it's not checked by default but made me cracy altthough dxf segemens weren't exploded
finaly im quite happy using either dxf or dwg since somethimes it does not recongnise some dwg's from rhino

don't know from any else programs

CGTalk Moderation
04-14-2008, 09:00 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.