CGAL users discussion list

[David Bernstein <>]

Hi Andreas, If I have an image created by

CGAL::Image_3 image(_createImage(mXdim, mYdim, mZdim, data_vector_size,
                                     mVX, mVY, mVZ,
                                     word_size_bytes,
                                     word_kind,
                                     sgn));

and then filled with data what would be the way to write it to an inr file?  
Sorry, I looked through the code and the online manuals but couldn't find an 
answer to this.

Thanks,
Dave

On May 21, 2013, at 1:57 PM, Andreas Fabri 
<>
 wrote:

> On 21/05/2013 19:39, David Bernstein wrote:
>> Hi Andreas, Thanks for your response.  I think perhaps that the part
>> about the sphere surface is not right but the interior
>> subdomain_index seems to be a real issue.
>> 
>> I'm setting the image data manually through function (a red flag I
>> know, I checked it many times and as far as I can tell it's working
>> correctly).  If I can write this to an inr file I'll send it to you.
> 
> yes please.
> 
> andreas
> 
> 
>> 
>> Dave
>> 
>> On May 21, 2013, at 3:02 AM, Andreas Fabri
>> <>
>>  wrote:
>> 
>>> 
>>> Hi David,
>>> 
>>> Is your post in the right thread?  I can't see sharp features in
>>> your spheres.
>>> 
>>> Can you provide the data set of the sphere, and the call to the
>>> mesh generator (plus the #includes and typedefs) so that we can try
>>> to reproduce and fix it.
>>> 
>>> The same for a multidomain segmented image.
>>> 
>>> best,
>>> 
>>> andreas
>>> 
>>> 
>>> On 21/05/2013 03:40, David Bernstein wrote:
>>>> Here's an example of something I've been encountering.  The image
>>>> has voxels set to one value in the interior of a small sphere
>>>> (the sphere is a few dozen voxels in diameter) and another value
>>>> outside.  The mesh appears to be ok except many of the elements
>>>> on the sphere surface and inside the sphere have the subdomain
>>>> index set to the wrong value.  Oddly this happens in some cases
>>>> (consistently in this one) and not others.
>>>> 
>>>> For instance, if I make the image smaller but with same size
>>>> voxels and same size sphere, the mesh is fine.  (This case has
>>>> about 12 million voxels, the small case where it works has about
>>>> 1 million).
>>>> 
>>>> Dave
>>>> <http://cgal-discuss.949826.n4.nabble.com/file/n4657522/tmp1.png>
>>>> 
>>>> 
> <http://cgal-discuss.949826.n4.nabble.com/file/n4657522/tmp2.png>
>>>> 
>>>> 
>>>> 
>>>> -- View this message in context:
>>>> http://cgal-discuss.949826.n4.nabble.com/3D-meshing-of-multidomain-segmented-images-with-sharp-features-tp4657504p4657522.html
>>>> 
>>>> 
> Sent from the cgal-discuss mailing list archive at Nabble.com.
>>>> 
>>> 
>>> 
>>> -- Andreas Fabri, PhD Chief Officer, GeometryFactory Editor, The
>>> CGAL Project
>>> 
>>> phone: +33.492.954.912    skype: andreas.fabri
>>> 
>>> -- You are currently subscribed to cgal-discuss. To unsubscribe or
>>> access the archives, go to
>>> https://sympa.inria.fr/sympa/info/cgal-discuss
>>> 
>>> 
>> 
>> 
> 
> 
> -- 
> Andreas Fabri, PhD
> Chief Officer, GeometryFactory
> Editor, The CGAL Project
> 
> phone: +33.492.954.912    skype: andreas.fabri
> 
> -- 
> You are currently subscribed to cgal-discuss.
> To unsubscribe or access the archives, go to
> https://sympa.inria.fr/sympa/info/cgal-discuss
> 
> 


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