topic Re: autocad 3d to 2d in AutoCAD Forum

autocad 3d to 2d

anwarsha138 — Tue, 09 Jan 2024 12:19:49 GMT

Hi,

myself anwar and i need an answer to the following question regarding autocad file

“ is there any way i can convert a drawing with lot of lines, polylines, circles, ellipses , splines ,blocks, blocks with attributes which are seen in different elevations. But when viewed from top it will be seen as a complete drawing like in 2d .( may be exported from another software to a dwg file )

I need to convert this components i mentioned above into one single plane but without exploding cause its a large file!

any commands , any softwares where i can achieved the following

note :already tried flatshot , flatten , exporttoautocad

Re: autocad 3d to 2d

VincentSheehan — Tue, 09 Jan 2024 12:52:05 GMT

Have you tried the Flatten command? It's an Express Tool Command.

Re: autocad 3d to 2d

anwarsha138 — Tue, 09 Jan 2024 12:55:40 GMT

yes. but it contain lots of elements. Blocks. blocks within blocks and all flatten is literally makking the software crash or hang. Used xplode feature but the file size is increasing exponentially.

Re: autocad 3d to 2d

anwarsha138 — Tue, 09 Jan 2024 12:56:27 GMT

yes. but it contain lots of elements. Blocks. blocks within blocks and all flatten is literally makking the software crash or hang. Used xplode feature too

Re: autocad 3d to 2d

paullimapa — Tue, 09 Jan 2024 13:35:51 GMT

How’s about plotting to pdf and then in a new dwg use PdfImport command to bring that pdf back in as vectors?

Re: autocad 3d to 2d

anwarsha138 — Tue, 09 Jan 2024 13:38:49 GMT

but loosing all its details
cause as i said its quite big a file
the hatches are getting out of boundaries
i can’t attch it due to policies ..

Re: autocad 3d to 2d

tramber — Tue, 09 Jan 2024 13:41:14 GMT

Export and Import in WMF... a bit radical.

Or with PDF 😉 or even DWF...

Re: autocad 3d to 2d

paullimapa — Tue, 09 Jan 2024 13:42:12 GMT

Yes you’ll lose a lot by going the pdf route but at least it’ll still be a vector dwg and some of the hatches may still be hatches. I’d say give it a try in a smaller sample just so you can see the results

Re: autocad 3d to 2d

anwarsha138 — Tue, 09 Jan 2024 14:01:49 GMT

the texts are really getting bad.
I am trying with only the arch file. hope its getting better.
is there any other software which can convert this kind of dwg

Re: autocad 3d to 2d

Kent1Cooper — Tue, 09 Jan 2024 14:13:42 GMT

@anwarsha138 wrote:

.... I need to convert this components i mentioned above into one single plane but without exploding ....

If you have Blocks that contain parts that are not all in the same plane, then if you don't want to Explode them, you would need to REFEDIT or BEDIT the Block definitions to flatten their contents, either using the FLATTEN command [it can be used within either Block-editing command] or by selecting things and changing all their Z coordinate and Elevation values to 0. A routine could presumably do that for you [within limits], comparable to routines that are out there for the Searching, that do things like put all parts of all Block definitions on Layer 0, or change the color property of all parts to ByLayer.

Are there ever 3D Solid objects?

Re: autocad 3d to 2d

VincentSheehan — Tue, 09 Jan 2024 14:14:37 GMT

Try to purge what you can after you explode them.

Re: autocad 3d to 2d

AVCPlugins — Tue, 09 Jan 2024 14:17:41 GMT

Try this plugin too. It is much smarter than normal commands.

Re: autocad 3d to 2d

pendean — Tue, 09 Jan 2024 14:19:49 GMT

@anwarsha138 wrote:
...I am trying with only the arch file...convert this kind of dwg...

If you mean the 3D content was created by AutoCADARCHITECTURE, then in that program first export "to AutoCAD" then use that file with FLATTEN command

@anwarsha138 wrote:
the texts are really getting bad....

PDF is a messy conversion option, not always great.

@anwarsha138 wrote:
is there any other software which can convert this kind of dwg

Doubt it. May I ask why you need a flat 2D of a 3D Architectural plan? That would help others help you better.

Re: autocad 3d to 2d

anwarsha138 — Tue, 09 Jan 2024 14:36:24 GMT

cause inorder to insert to anothwr software

where the files should be less size and not in 3d

Re: autocad 3d to 2d

pendean — Tue, 09 Jan 2024 15:07:51 GMT

@anwarsha138 wrote:

cause inorder to insert to anothwr software

where the files should be less size and not in 3d

Which other software?

Did you do this yet

Re: autocad 3d to 2d

Kent1Cooper — Tue, 09 Jan 2024 15:08:18 GMT

@anwarsha138 wrote:

cause inorder to insert to anothwr software where the files should be less size and not in 3d

Those [file size and 3D-ness] are two different considerations. A complex drawing is going to be a large file, which you may be able to reduce in size with Purging and so on, but obviously there will be a limit to how much it can be reduced. Converting everything to 2D from 3D is not necessarily going to reduce the file size. A 3D Polyline with Z-coordinate differences is not going to take any less memory when made to lie in a flat plane [though there could be a small difference if it can be made into a 2D lightweight Polyline]. Neither is a Block whose contents have a 3rd dimension necessarily going to take less memory when those contents are made flat. Things like linework that have non-zero Thickness and/or Elevation can have those properties changed to zero, but they still need to have values stored in those properties even if they are zero, so no memory reduction will result. Etc.

It sounds to me like the not in 3D must be the more important consideration, since I assume it is an absolute, whereas less size is relative.

Re: autocad 3d to 2d

anwarsha138 — Wed, 10 Jan 2024 06:11:49 GMT

but a third party does it
i don't know how but they reduced it.
there where no blocks in the resulting dwg ,there was only one style each
,i mea the text,annotation....
i have used FLATTEN, EXPORTTOACAD ,PURGE AND ALL THAT

Re: autocad 3d to 2d

pendean — Wed, 10 Jan 2024 14:16:08 GMT

@anwarsha138 wrote:
but a third party does it
i don't know how but they reduced it.
there where no blocks in the resulting dwg ,there was only one style each
,i mea the text,annotation....
i have used FLATTEN, EXPORTTOACAD ,PURGE AND ALL THAT

You've then hit the limit that is AutoCAD. Sorry.

Re: autocad 3d to 2d

TheCADnoob — Wed, 10 Jan 2024 14:31:00 GMT

Does FLATSHOT do what you need?

https://help.autodesk.com/view/ACD/2022/ENU/?guid=GUID-746F10D2-7CFD-412D-B51F-33574C773B95

Re: autocad 3d to 2d

anwarsha138 — Wed, 10 Jan 2024 14:43:02 GMT

it contain lot of blocks , blocks within blocks ….
elements are about 13 lakhs