[Insight-users] dynamic_cast

Wed, 18 Dec 2002 08:00:48 -0500

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lydia,
What is your ImageType? Could you report your typedef?
=20
Bill

-----Original Message-----
From: lydia coin [mailto:lydia_coin3d@yahoo.fr]
Sent: Wednesday, December 18, 2002 6:27 AM
To: insight-users@public.kitware.com
Subject: [Insight-users] dynamic_cast

Hi folks

I'm a newbie at itk, I'm having many problems in using the filters, I =
already posted a message about
setspacing and setorigin methods of an itkimage class. It doesn't work =
because it says that the
transfroms associated to this image are not affine knowing that I =
associated no transform, it was
created by the class itself during the instanciation.

Second, I'm using a connectedthresholdImageFilter , it takes as input =
an image of unsigned char type
of pixels, but doesn't give any output. While using update() method of =
the filter it stops with an
error at this point of the itkImagebase.txx

ImageBase<VImageDimension>
::CopyInformation(const DataObject *data)
{

imgData =3D dynamic_cast<const ImageBase<VImageDimension>*>(data);

}

and doesn't cast back the pointer. =20

I really need to know what I'm doing wrong and hope I will get some =
help

regards   =20

=20

typedef itk::ConnectedThresholdImageFilter<ImageType,ImageType> =
FilterType;

 FilterType::Pointer filter =3D FilterType::New();
    filter->SetInput(img);
    FilterType::IndexType seed; seed[0] =3D 165; seed[1] =3D 90;
    filter->SetSeed(seed);
    filter->SetLower(0);
    filter->SetUpper(255);
    filter->SetReplaceValue(255);
   filter-> Update();

  _____ =20

Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran=E7ais !
Testez le nouveau Yahoo! <http://fr.mail.yahoo.com> Mail

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<META content=3D"MSHTML 5.50.4919.2200" name=3DGENERATOR></HEAD>
<BODY>
<DIV>lydia,</DIV>
<DIV>What=20
is your ImageType? Could you report your typedef?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Bill</DIV>
<BLOCKQUOTE>
 <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>-----Original Message----- From: lydia coin=20
 [mailto:lydia_coin3d@yahoo.fr] Sent: Wednesday, December =
18, 2002=20
 6:27 AM To: =
insight-users@public.kitware.com Subject:=20
 [Insight-users] dynamic_cast </DIV>
 Hi folks
 I'm a newbie at itk, I'm having many problems in using the =
filters, I=20
 already posted a message about setspacing and setorigin methods of an =
itkimage=20
 class. It doesn't work because it says that the transfroms associated =
to this=20
 image are not affine knowing that I associated no transform, it was =
created by=20
 the class itself during the instanciation.
 Second, I'm using a connectedthresholdImageFilter , it takes as =
input an=20
 image of unsigned char type of pixels, but doesn't give any output. =
While=20
 using update() method of the filter it stops with an error at this =
point of=20
 the itkImagebase.txx
 ImageBase&lt;VImageDimension&gt; ::CopyInformation(const =
DataObject=20
 *data) {
 imgData =3D dynamic_cast&lt;const=20
 ImageBase&lt;VImageDimension&gt;*&gt;(data);
 }
 and&nbsp;doesn't cast back the pointer.&nbsp;&nbsp;
 I really need to know&nbsp;what I'm doing wrong&nbsp;and hope I =
will get=20
 some help
 regards&nbsp;&nbsp;&nbsp;&nbsp;
 &nbsp;
 typedef =
itk::ConnectedThresholdImageFilter&lt;ImageType,ImageType&gt;=20
 FilterType;
 &nbsp;FilterType::Pointer filter =3D =
FilterType::New(); &nbsp;&nbsp;&nbsp;=20
 filter-&gt;SetInput(img); &nbsp;&nbsp;&nbsp; FilterType::IndexType =
seed;=20
 seed[0] =3D 165; seed[1] =3D 90; &nbsp;&nbsp;&nbsp;=20
 filter-&gt;SetSeed(seed); &nbsp;&nbsp;&nbsp;=20
 filter-&gt;SetLower(0); &nbsp;&nbsp;&nbsp;=20
 filter-&gt;SetUpper(255); &nbsp;&nbsp;&nbsp;=20
 filter-&gt;SetReplaceValue(255); &nbsp;&nbsp; filter-&gt; =
Update();
 
 <HR SIZE=3D1>
 Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran=E7ais =
! <A=20
 href=3D"http://fr.mail.yahoo.com">Testez le nouveau Yahoo!=20
Mail</A></BLOCKQUOTE></BODY></HTML>

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