[Insight-users] use of std::vector with ITK typedefs

[Matt McCormick]

Hi Arvind,

That cannot be all of the function because "points" is not used inside.

Matt

On Thu, Apr 5, 2012 at 12:34 AM, Arvind Rao <arvind.sbia at gmail.com> wrote:
> Hi Matt,
>
> Thanks for replying. ReadStreamFile(...) is defined below. The "bad_alloc>
> caught: St9bad_alloc" error seems to originate from this function. For
> clarity, TPixelType = itk::Vector<float, 3>
>
> template< typename TPixelType>
> void ReadStreamFile( std::string filename, std::vector<TPixelType> &points )
> {
>    TPixelType dir;
>    int num;
>    std::vector<float> vec;
>    std::ifstream indata( filename.c_str() ); // opens the file
>
>    indata >> num;
>    while ( !indata.eof() )  { // keep reading until end-of-file
>       vec.push_back( num );
>       indata >> num;}
>    indata.close();
> }
>
> Best,
> Arvind
>
> On Wed, Apr 4, 2012 at 10:53 PM, Matt McCormick <matt.mccormick at kitware.com>
> wrote:
>>
>> Hi Arvind,
>>
>> It looks like the error is happening inside ReadStreamFile, so please
>> post how that is declared and defined.
>>
>> Thanks,
>> Matt
>>
>> On Wed, Apr 4, 2012 at 8:57 PM, Arvind Rao <arvind.sbia at gmail.com> wrote:
>> > Hi all,
>> >
>> > In order to read-in a variable number of points from a file I want to
>> > use a
>> > dynamically sized container like STD::VECTOR. The points are stored like
>> > so:
>> > ( points is the vector I use )
>> >
>> >       typedef itk::Image< itk::Vector<ComponentType, Dimension>,
>> > Dimension>
>> >                                 PeakImageType;
>> >       typedef PeakImageType::PixelType
>> >                                                        DirectionType;
>> >       std::vector<DirectionType>
>> >                                                                points
>> >
>> > However, the following try-catch statement gives, at
>> > run-time, "bad_alloc
>> > caught: St9bad_alloc"
>> >
>> >       try
>> >       {
>> >                 std::vector<DirectionType> points;
>> >                 ReadStreamFile<DirectionType>( streamArg.getValue(),
>> > points
>> > );
>> >       }
>> >      catch (std::bad_alloc& ba)
>> >       {
>> >                 std::cerr << "bad_alloc caught: " << ba.what() <<
>> > std::endl;
>> >                 return 0;
>> >       }
>> >
>> > So, what is going on? Its seems like POINTS is not being allocated
>> > properly,
>> > but I'm sure how to fix this.
>> >
>> > Thanks for any help you can provide.
>> >
>> >
>> > --
>> > Arvind S. Rao, PhD
>> > Section of Biomedical Image Analysis
>> > Department of Radiology
>> > University of Pennsylvania
>> > 3600 Market Street, Suite 380
>> > Philadelphia, PA 19104
>> >
>> >
>> >
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>
>
>
>
> --
> Arvind S. Rao, PhD
> Section of Biomedical Image Analysis
> Department of Radiology
> University of Pennsylvania
> 3600 Market Street, Suite 380
> Philadelphia, PA 19104
> tel: (267) 283-8959
>