[ITK] Compilation errors
Girish, Gavaskar Ruturaj
gavaskar.ruturaj.girish at philips.com
Thu Jun 5 06:02:23 EDT 2014
Dear Bill and Cory,
It was a stupid mistake on my part. Thank you very much for your help. My original code is compiling and working smoothly after fixing that typo.
Cory, thanks for the link on the dangers of using ‘namespace’. I was always a bit wary of using it, though I didn’t know the reasons.
Thanks & Regards,
Ruturaj
From: Cory Quammen [mailto:cory.quammen at kitware.com]
Sent: Wednesday, June 04, 2014 6:37 PM
To: Bill Lorensen
Cc: Girish, Gavaskar Ruturaj; community at itk.org
Subject: Re: [ITK] Compilation errors
Oops, Bill's right. While my general advice about namespace qualifiers stands, you were already doing that and my specific recommendations were totally wrong. I should have actually looked at your header file to see that you were indeed qualifying the class names with the itk namespace. The dangers of responding prior to consuming any coffee...
Cory
On Wed, Jun 4, 2014 at 9:00 AM, Bill Lorensen <bill.lorensen at gmail.com<mailto:bill.lorensen at gmail.com>> wrote:
In the header, the definition of the median filter should be
typedef itk::MedianImageFilter< GrayscaleImageType, GrayscaleImageType >
MedianFilterType;
not
typedef itk::MedianImageFilter< GrayscalePixelType, GrayscalePixelType >
MedianFilterType;
On Wed, Jun 4, 2014 at 8:39 AM, Girish, Gavaskar Ruturaj
<gavaskar.ruturaj.girish at philips.com<mailto:gavaskar.ruturaj.girish at philips.com>> wrote:
> Dear Bill,
> Here I have copied a small program which gives the same errors:
>
> #include "Filter_Type_Definitions.h"
> int main( int argc, char *argv[])
> {
> ReaderType::Pointer reader = ReaderType::New();
> reader->SetFileName( argv[1] );
> reader->Update();
>
> //Apply a median filter
> MedianFilterType::Pointer medianfilter = MedianFilterType::New();
> GrayscaleImageType::SizeType indexradius;
> indexradius[0] = 3; //X radius
> indexradius[1] = 3; //Y radius
> indexradius[2] = 3; //Z radius
> medianfilter->SetRadius( indexradius );
> medianfilter->SetInput( input_image );
> medianfilter->Update();
>
> }
>
> Now, I have used only itkMedianImageFilter in this example, but in my actual code I am using many more filters. Hence I have kept the file Filter_Type_Definitions.h as it is without deleting the extra filters, in case they are of any help. I have attached the file with this post. I had written many programs before today in which I had included all the headers in the main source code file, and they all compiled without errors. It was only when I kept the headers and typedef's in a separate file that the errors began occurring.
>
> Thanks & Regards,
> Ruturaj
>
> -----Original Message-----
> From: Bill Lorensen [mailto:bill.lorensen at gmail.com<mailto:bill.lorensen at gmail.com>]
> Sent: Wednesday, June 04, 2014 5:41 PM
> To: Girish, Gavaskar Ruturaj
> Cc: community at itk.org<mailto:community at itk.org>
> Subject: Re: [ITK] Compilation errors
>
> Please post a small, complete program that illustrates the problem.
>
>
> On Wed, Jun 4, 2014 at 7:58 AM, Girish, Gavaskar Ruturaj <gavaskar.ruturaj.girish at philips.com<mailto:gavaskar.ruturaj.girish at philips.com>> wrote:
>> Dear all,
>>
>>
>>
>> I have written an ITK program which gives me errors when I try to
>> compile it. I have copied a small sample of the errors below. All the
>> other errors are similar.
>>
>>
>>
>> c:\program files\itk\include\itk-4.6\itkImageSource.h(108): error C2039:
>> 'RegionType' : is not a member of '`global namespace''
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(108): error C2146:
>> syntax error : missing ';' before identifier 'OutputImageRegionType'
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(108): error C4430:
>> missing type specifier - int assumed. Note: C++ does not support
>> default-int
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(109): error C2825:
>> 'itk::ImageSource<TOutputImage>::OutputImageType': must be a class or
>> namespace when followed by '::'
>>
>>
>>
>> c:\program files\itk\include\itk-4.6\itkImageSource.h(109): error C2039:
>> 'PixelType' : is not a member of '`global namespace''
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(109): error C2146:
>> syntax error : missing ';' before identifier 'OutputImagePixelType'
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(109): error C4430:
>> missing type specifier - int assumed. Note: C++ does not support
>> default-int
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(112): error C2825:
>> 'TOutputImage': must be a class or namespace when followed by '::'
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(112): error C2039:
>> 'ImageDimension' : is not a member of '`global namespace''
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(112): error C2275:
>> 'TOutputImage' : illegal use of this type as an expression
>>
>> 2> c:\program
>> files\itk\include\itk-4.6\itkImageToImageFilter.h(103) : see
>> declaration of 'TOutputImage'
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(112): error C2146:
>> syntax error : missing '}' before identifier 'ImageDimension'
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageSource.h(112): error C2143:
>> syntax error : missing ';' before '}'
>>
>> 2>c:\program files\itk\include\itk-4.6\itkImageToImageFilter.h(115):
>> 2>error
>> C2039: 'OutputImageRegionType' : is not a member of
>> 'itk::ImageSource<TOutputImage>'
>>
>>
>>
>> When I searched on google, I found that this might happen if header
>> files are included in the ‘wrong’ order. If it helps, I have included
>> them in the following order:
>>
>> #include <iostream>
>>
>> #include "itkImage.h"
>>
>> #include "itkPoint.h"
>>
>> #include "itkIndex.h"
>>
>> #include "itkImageFileReader.h"
>>
>> #include "itkImageFileWriter.h"
>>
>> #include "itkMedianImageFilter.h"
>>
>> #include "itkThresholdImageFilter.h"
>>
>> #include "itkBinaryThresholdImageFilter.h"
>>
>> #include "itkBinaryFillholeImageFilter.h"
>>
>> #include "itkMaskImageFilter.h"
>>
>> #include "itkOtsuThresholdImageFilter.h"
>>
>> #include "itkAndImageFilter.h"
>>
>> #include "itkBinaryShapeOpeningImageFilter.h"
>>
>> #include "itkBinaryShapeKeepNObjectsImageFilter.h"
>>
>> #include "itkXorImageFilter.h"
>>
>> #include "itkConnectedComponentImageFilter.h"
>>
>> #include "itkLabelGeometryImageFilter.h"
>>
>>
>>
>> I have created a separate header file in which I have included all the
>> above header files and also all the typedef’s for the filters. Can
>> anybody give me an idea to why such errors may be occurring? I have
>> not used a ‘using namespace xxxx’ anywhere.
>>
>>
>>
>> Thanks & Regards,
>>
>> Ruturaj
>>
>>
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>
>
>
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>
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