Re: [Meshlab-devel] quadric filters

[Paolo C. <pao...@is...>]

skunkwerk wrote:
> thanks Paolo,
>    it's nice to have you back.  i didn't feel the wiki page answered my
> questions:
> 1)  what's the definition of a border & boundary within meshlab, and are all
> non-manifold faces bordering faces?
>   
I have tried to improve the doc.

http://vcg.sourceforge.net/index.php/Tutorial#Boundary_relations_and_adjacency

It is nice to have someone that actually tests our scarce documentation :)


> 2)  do the number of leaves correspond to the number of border faces, or
> what?
>   
I have not understood what do you mean with leaves? what leaves? what 
tree are you referring to? I have lost the context.

> while these are from other threads, i don't want to send 5 emails to the
> list:
> 3)  the same file you sent me to test on the texture filter froze my entire
> machine & meshlab - did you not encounter any issues with it?  was it not
> working with the 'copied tiles' option or with 'resampled'?
>   
yes it does not works with your filter.  It is a typical dirty mesh 
against which algorithms should be made robust.
(the mesh we are talking about is the old textured minerva 250 face and 
two textures)
> 4)  i tried loading 2 layers into meshlab to use with the hausdorff distance
> plugin, but i don't think the layers are working.  any suggestions?
>   
I have tried on different architecture and layers seems to be correctly 
working.
Can some one be able to replicate this issue?
> 5)  trying to clip triangles with refine.h: you said i need to define which
> edges of the triangle need to be split - but how do I define the points it
> should be split at?  i tried doing a search for 'subdivision' in the
> codebase but couldn't find much - could someone point me to the specific
> file that does some clipping?
>   
I will expand the comment in the refine.h file
look for the next commits.
p.


> regards,
> imran
>
> On Sun, Aug 3, 2008 at 1:26 AM, Paolo Cignoni <pao...@is...>wrote:
>
>   
>> skunkwerk wrote:
>>     
>>> Paolo, may I ask how you determined the number of leaves in the model?
>>>       
>>  The
>>     
>>> .dae had a maximum of 2,766 triangles in one "node"
>>>
>>> sorry for all the questions
>>>
>>> imran
>>>
>>> On Mon, Jul 21, 2008 at 6:10 AM, Paolo Cignoni <
>>>       
>> pao...@is...>wrote:
>>     
>> I have added some notes on the border flags in the vcg wiki
>> http://vcg.sourceforge.net/index.php/Flags
>> p.
>>
>>
>>
>> --
>> Paolo Cignoni  -- Senior Researcher
>> Visual Computing Laboratory - ISTI - CNR
>> http://vcg.isti.cnr.it/~cignoni <http://vcg.isti.cnr.it/%7Ecignoni>
>>
>> ISTI - CNR
>> Via Moruzzi 1,
>> 56124 Pisa
>> ITALY
>>
>>
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-- 
Paolo Cignoni  -- Senior Researcher
Visual Computing Laboratory - ISTI - CNR 
http://vcg.isti.cnr.it/~cignoni

ISTI - CNR 
Via Moruzzi 1,
56124 Pisa
ITALY