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[Jayesh Salvi <>]

Let me see if I can put together some minimal c++ code to demo this.
--
Jayesh



On Tue, May 31, 2011 at 11:31 AM, Sebastien Loriot (GeometryFactory)
<>
 wrote:
> Any complete minimal example showing the problem?
>
> S.
>
> Jayesh Salvi wrote:
>>
>> ^ Bump ^
>>
>> Any thoughts?
>> --
>> Jayesh
>>
>>
>>
>> On Sun, May 29, 2011 at 4:43 PM, Jayesh Salvi 
>> <>
>> wrote:
>>>
>>> Hello,
>>>
>>> In my program I am creating two polyhedrons from two meshes (In this
>>> case a cube and a sphere). Then I convert them to Nef Polyhedra and
>>> apply union (+) operation on them. I then convert the returned Nef
>>> Polyhedron into a Polyhedron_3, but before doing that I run
>>> is_simple() check (just so that if it is not simple, I can generate an
>>> error message, instead of assertion failure crash during the
>>> conversion process).
>>>
>>> In this particular case - with a cube and sphere of specific
>>> geometries - I observed that after some time the program starts
>>> occupying a lot of memory and consumes most of the CPU. From the top
>>> utility, I can see that the process is taking >90% memory and >90%
>>> CPU. To see what's going on, I put cout statements at various places
>>> to see during which part of the program does this start to happen. I
>>> was surprised to find out that this happens when I call is_simple()
>>> check on the nef polyhedron. At this point either I have to kill the
>>> process or the system terminates it.
>>>
>>> I tried to run the program through valgrind, but as I read elsewhere
>>> valgrind can't be used with CGAL programs because of floating point
>>> issues.
>>>
>>> Do you have any suggestions how can I proceed to debug this?
>>>
>>> Thanks in advance.
>>>
>>> (My project is available at http://jayesh3.github.com/cadmium/ I can
>>> provide instructions on how to reproduce the issue, if you need)
>>> --
>>> Jayesh
>>>
>>
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