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Triangle tessellation to continuous surface

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Message 1 of 8
Anonymous
747 Views, 7 Replies

Triangle tessellation to continuous surface

Anonymous
Not applicable

Hello,

I got a 100Mb DXF file which seems to be a readapted STL 3D scanning as it is made of tons of small triangles and despite being on a quite new machine, the program frequently freezes.

Is there a way to replace all the triangles with a surface, possibly simplifying the drawing (I only need to split the elevons and modify the front cover of this delta wing plane?

Thank you

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Triangle tessellation to continuous surface

Hello,

I got a 100Mb DXF file which seems to be a readapted STL 3D scanning as it is made of tons of small triangles and despite being on a quite new machine, the program frequently freezes.

Is there a way to replace all the triangles with a surface, possibly simplifying the drawing (I only need to split the elevons and modify the front cover of this delta wing plane?

Thank you

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7 REPLIES 7
Message 2 of 8
maxim_k
in reply to: Anonymous

maxim_k
Consultant
Consultant
Accepted solution
Welcome to Autodesk Forums!

Hi

If the model consists from 3D Faces , then yes, you can:

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Conver...

But keep in mind that such operation can easily overload your Mac, so you can try to do the conversion by small parts.

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Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
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Welcome to Autodesk Forums!

Hi

If the model consists from 3D Faces , then yes, you can:

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Conver...

But keep in mind that such operation can easily overload your Mac, so you can try to do the conversion by small parts.

Do you find the posts helpful? "LIKE" these posts!
Have your question been answered successfully? Click 'ACCEPT SOLUTION' button.


Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
Message 3 of 8
Anonymous
in reply to: maxim_k

Anonymous
Not applicable

thanks the solution is working but it totally freezes the PC even on a small surface. Is thee any way to simply the computational time? 

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thanks the solution is working but it totally freezes the PC even on a small surface. Is thee any way to simply the computational time? 

Message 4 of 8
maxim_k
in reply to: Anonymous

maxim_k
Consultant
Consultant
Can you share your drawing?
Save it in DWG format, it should become much smaller in size.

Maxim

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Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
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Can you share your drawing?
Save it in DWG format, it should become much smaller in size.

Maxim

Do you find the posts helpful? "LIKE" these posts!
Have your question been answered successfully? Click 'ACCEPT SOLUTION' button.


Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
Message 5 of 8
dgorsman
in reply to: Anonymous

dgorsman
Consultant
Consultant

@Anonymous wrote:

thanks the solution is working but it totally freezes the PC even on a small surface. Is thee any way to simply the computational time? 


AutoCAD isn't that great at complex surfaces.  You might be better off with Fusion 360 or a full-blown surface sculpting program for most, if not all, of such a process.

----------------------------------
If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.



@Anonymous wrote:

thanks the solution is working but it totally freezes the PC even on a small surface. Is thee any way to simply the computational time? 


AutoCAD isn't that great at complex surfaces.  You might be better off with Fusion 360 or a full-blown surface sculpting program for most, if not all, of such a process.

----------------------------------
If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.


Message 6 of 8
Anonymous
in reply to: maxim_k

Anonymous
Not applicable

Here is the DWG, as suggested this format saves up a lot of space (21Mb vs 100Mb) but again even small surface union cmd isn't doable using a consumer pc.

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Here is the DWG, as suggested this format saves up a lot of space (21Mb vs 100Mb) but again even small surface union cmd isn't doable using a consumer pc.

Message 7 of 8
maxim_k
in reply to: Anonymous

maxim_k
Consultant
Consultant

Hi Giammarco,

 

I looked at your drawing and realized that @dgorsman was right - it is practically impossible to convert 3d faces that form the model into 3d Solids or Meshes in AutoCAD.

I used Rhinoceros for Mac to convert 3d faces in your drawing to 3D Solids, but at first I reduced meshes by 90% in Rhinoceros.

You can look at the result in attached drawings - Rhino export-solids.dwg - as it was exported from Rhino (solids)

and Rhino export-meshes.dwg - I converted solids, created in Rhino to Meshes to reduce file size.

 

Maxim


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Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
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Hi Giammarco,

 

I looked at your drawing and realized that @dgorsman was right - it is practically impossible to convert 3d faces that form the model into 3d Solids or Meshes in AutoCAD.

I used Rhinoceros for Mac to convert 3d faces in your drawing to 3D Solids, but at first I reduced meshes by 90% in Rhinoceros.

You can look at the result in attached drawings - Rhino export-solids.dwg - as it was exported from Rhino (solids)

and Rhino export-meshes.dwg - I converted solids, created in Rhino to Meshes to reduce file size.

 

Maxim


Do you find the posts helpful? "LIKE" these posts!
Have your question been answered successfully? Click 'ACCEPT SOLUTION' button.


Maxim Kanaev
Architect
MARSS

MacACAD | Linkedin

Etiquette and Ground Rules of Autodesk Community
Message 8 of 8
Anonymous
in reply to: maxim_k

Anonymous
Not applicable

Thank you very much

Actually that's the only solution as the file is too complex to create a mesh

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Thank you very much

Actually that's the only solution as the file is too complex to create a mesh

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