[ITK-users] Error running Exmaple code -- ICP2.cxx

[Matt McCormick]

Hi Kevin,

Welcome to ITK!

Please send your CMakeLists.txt, code, data, and the command that you
run so that others may understand the problem.

Thanks,
Matt

On Sun, Oct 19, 2014 at 8:13 PM, Kevin <gralewskik at email.chop.edu> wrote:
> Hello,
>
> Just started working with ITK and could use help from this nice community
> getting up to speed.
>
> As the subject reads, I'm currently trying to run iterativeclosestpoint2.cxx
> from the example source code to register 2 volume meshes. Below is the
> copied error message I keep getting (ClosestPoint3D is the executable name,
> obviously):
>
> /ClosestPoint3D(15746,0x7fff79138310) malloc: *** error for object
> 0x7f818d00e328: incorrect checksum for freed object - object was probably
> modified after being freed.
> *** set a breakpoint in malloc_error_break to debug
> Abort trap: 6/
>
>  I haven't coded in about 10 years and was never great at debugging so I'm
> at a bit of a loss. I'm running the official release 4.6.1 on OS X 10.9.5
> with clang, Apple LLVM 6.0 (based on 3.5).
>
> Here are a few more details/curious notes: when I would pass it the mesh
> files in either .STL or .vtk format the code would get stuck in the indexing
> function (I just dropped and returned an counter in the while loop).  It
> never kicked out even after running for iterations orders of magnitude more
> than the points (and edges for that matter).
>
> I then passed it a point cloud file as both a .txt and .xyz (a 3D point plot
> from MeshLab 1.3.3). This is when I get the checksum error. The code indexed
> and returned the points tally fine, and initiated a matrix transform, but
> would the abort. Even more oddly, when I run the executable again (with the
> same files) to make sure I got the error message right it returned a
> solution with the .txt, along with the checksum error, but not the .xyz
> point cloud.
>
> Lastly, I lowered the convergence criterion, epsilon, to .001 thinking maybe
> it wasn't converging before the number of iterations was hit, but that
> didn't alleviate the issue. In fact, it wouldn't return the initial identity
> matrix.
>
>
>
>
> --
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