[cgma-dev] [CGMa-announce] algorithm to extract closed volume from nonmanifold faces model

Jane Hu janejhu at gmail.com
Tue May 24 12:40:38 CDT 2011


stitch_surfs will create a shell body, not a volume body.  When you use
make_Lump, it makes a volume body if the surfaces are manifold.

Can you give an example of the failure case and the situation that you want
to solve? I want to understand your request better before going further.

Jane

On Mon, May 23, 2011 at 7:16 PM, Yu Wenhui <yuwenhui1981 at 163.com> wrote:

>   I notice CGM will create a volume no matter if the surfaces are manifold
> or not.
>
> Does CGM have a function to separate this non-manifold volume to several
> manifold volumes?
>
> BTW : stitch_surfs doesn’t work sometimes. Does CGM have a function to set
> the tolerance for it?
>
> Thanks,
>
> Yu
>
>  *From:* Jane Hu <janejhu at gmail.com>
> *Sent:* Monday, May 23, 2011 10:35 PM
> *To:* Yu Wenhui <yuwenhui at live.com>
> *Cc:* cgma-announce at mcs.anl.gov
> *Subject:* Re: [CGMa-announce] algorithm to extract closed volume from
> nonmanifold faces model
>
> No, CGM doesn't have this function. However, if you provide manifold
> surfaces, CGM can stitch them together to create a volume, stitch_surfs is
> the function.
>
> Jane
>
> 2011/5/22 Yu Wenhui <yuwenhui at live.com>
>
>>   Hi Gurus,
>>
>> I’d like to know if CGM have a function which extract closed volumes (
>> closed faces, not contained each other ) from nonmanifold faces model.
>>
>> Thanks,
>>
>> Yu
>>
>
>
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