[ros-users] Data is not aligned assertion fails... (SACSegmentation)

[Sabrina Kliegl]

Hi Radu,

I am facing a similar problem as Aitor (I am using the 
tabletop_object_detector). Which CMakeLists.txt do I have to modify exactly? 

I tried the CMakeLists.txt in pcl then "make clean" and "make", but still get 
the failed assertion.

Regards,
Sabrina

Am Dienstag 14 September 2010 10:42:22 schrieb Radu Bogdan Rusu:
> Aitor,
> 
> Thanks for the bug report. We're aware of the eigen 32-bit
>  allocation/vectorization problems and are working on fixing these. In the
>  meantime, you can enable EIGEN_DONT_VECTORIZE (-DEIGEN_DONT_VECTORIZE to
>  add_definitions in CMakeLists.txt), which will fix these issues on 32bit
>  architectures.
> 
> Cheers,
> Radu.
> 
> On 09/14/2010 11:29 AM, Aitor Aldomà wrote:
> > Hi everyone,
> >
> > was using the PCL to detect the dominant plane from a point cloud,
> > similar to what is done in package tabletop_object_detector using
> > SACSegmentation or SACSegmentationFromNormals and one assertion fails:
> >
> > /home/aa/ros/stacks/point_cloud_perception/eigen3/include/Eigen/src/Core/
> >MapBase.h:192: void Eigen::MapBase<Derived>::checkSanity() const [with
> > Derived = Eigen::Map<Eigen::Matrix<float, 4, 1, 0, 4, 1>, 1,
> > Eigen::Stride<0, 0>
> >
> >  >]: Assertion `(!(ei_traits<Derived>::Flags&AlignedBit) ||
> >
> > ((size_t(m_data)&0xf)==0)) && "data is not aligned"' failed.
> >
> > Tried the example from:
> > http://www.ros.org/wiki/pcl/Tutorials/Planar%20model%20segmentation
> >
> > and the error persists but it does not occur always, just every now and
> > then :S I am testing on a 32-Bit Ubuntu operating system.
> >
> > Any idea? I would really appreciate it.
> >
> > Thanks in advance.
> > Aitor
> >
> >
> >
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