[vtkusers] ImplicitModeller and ContourFilter

[Mathieu Malaterre]

CCing the vtkusers as it is a common misunderstanding.

The problem of linking static library is by no way related to VTK. VTK 
just offer the sufficient difficulty to the linker. Search on the web 
about ordering static lib. Sometime you also have to duplicate the 
library...but if you were using CMake you wouldn't had to worry about it :P


Mathieu

Christopher.Moore at noaa.gov wrote:
> Thanks, Mathieu & Yan - I should have caught that one...
> 
> I find that vtk apps are oddly sensitive to the order that the libraries 
> are listed in the Makefile at link time.  I had to move -lvtkHybrid first 
> in the list of vtk libraries before it would compile!  (gcc RH9).
> 
> Cheers,
> Chris
> 
> __________________________________________________________________
> Christopher Moore                email: Christopher.Moore at noaa.gov
> Research Scientist, Oceanography                 tel: 206.526.6779
> University of Washington/JISAO/NOAA-PMEL         fax: 206.526.6744
> ------------------------------------------------------------------
> 
> On Fri, 26 Mar 2004, Mathieu Malaterre wrote:
> 
> 
>>Christopher,
>>
>> > NIso->SetInput((vtkDataSet*) Nmodeller->GetOutput());
>>
>>	VTK uses forward declaration, you should not cast object like this. You 
>>need to include the proper header that's all.
>>	In your case you need:
>>
>>#include "vtkImageData.h"
>>
>>Mathieu
>>
>>Christopher.Moore at noaa.gov wrote:
>>
>>>Thanks for the try, Pingkun, but simply casting the ImplicitModeller 
>>>didn't work - the output is ImageData (the superclass is already DataSet), 
>>>and when I add the cast:
>>>
>>>NIso->SetInput((vtkDataSet*) Nmodeller->GetOutput());
>>>
>>>I get the following errors now:
>>>
>>>/usr/local/lib/vtk/libvtkHybrid.a(vtkImplicitModeller.o)(.text+0x2f): In 
>>>function `vtkImplicitModeller::CollectRevisions(std::basic_ostream<char, 
>>>std::char_traits<char> >&)':: undefined reference to 
>>>`vtkDataSetToImageFilter::CollectRevisions(std::basic_ostream<char,
>>>std::char_traits<char> >&)'
>>>/usr/local/lib/vtk/libvtkHybrid.a(vtkImplicitModeller.o)(.text+0x4e5): In 
>>>function `vtkImplicitModeller::UpdateData(vtkDataObject*)':: undefined reference 
>>>to `vtkDataSetToImageFilter::GetInput()'
>>>/usr/local/lib/vtk/libvtkHybrid.a(vtkImplicitModeller.o)(.text+0xc15): In 
>>>function `vtkImplicitModeller_ThreadedAppend(void*)':: undefined reference 
>>>to `vtkCellLocator::New()'
>>>/usr/local/lib/vtk/libvtkHybrid.a(vtkImplicitModeller.o)(.text+0xfa6): In 
>>>function `vtkImplicitModeller_ThreadedAppend(void*)':: undefined reference to 
>>>`vtkCellLocator::FindClosestPointWithinRadius(float*, float, float*, 
>>>vtkGenericCell*, int&, int&, float&)'
>>>/usr/local/lib/vtk/libvtkHybrid.a(vtkImplicitModeller.o)(.text+0x19c8): In 
>>>function `vtkImplicitModeller::Append(vtkDataSet*)':: undefined reference 
>>>to `vtkStructuredGrid::New()'
>>>
>>>Does anyone have any ideas?
>>>
>>>Cheers,
>>>Chris
>>>
>>>On Fri, 26 Mar 2004, Yan Pingkun wrote:
>>>
>>>
>>>
>>>>vtkImageData is derived from vtkDataSet. So you can call the function
>>>>like this:
>>>>NIso->SetInput((vtkDataSet*) Nmodeller->GetOutput());
>>>>This is caused by the strong type checking character of C++. Sometimes
>>>>it may help us from being trapped by errors.
>>>>
>>>>TCL is a script language. It doesn't match the data type strictly.
>>>>Hence, there's no warning or error on it.
>>>>
>>>>My two cents.
>>>>
>>>>Pingkun
>>>>
>>>>-----Original Message-----
>>>>From: vtkusers-admin at vtk.org [mailto:vtkusers-admin at vtk.org] On Behalf
>>>>Of Christopher.Moore at noaa.gov
>>>>Sent: Friday, March 26, 2004 9:15 AM
>>>>To: vtkusers at vtk.org
>>>>Subject: [vtkusers] ImplicitModeller and ContourFilter
>>>>
>>>>
>>>>
>>>>This is odd:
>>>>
>>>>Now that ImplicitModeller is a DataSetToImageFilter, my ContourFilter 
>>>>complains, but only in C++, not Tcl:
>>>>
>>>> vtkVectorText *letterN = vtkVectorText::New();
>>>> letterN->SetText("N");
>>>>
>>>> vtkImplicitModeller *Nmodeller = vtkImplicitModeller::New();
>>>> Nmodeller->SetInput(letterN->GetOutput());
>>>> Nmodeller->SetMaximumDistance(0.2);
>>>> Nmodeller->SetSampleDimensions(64, 64, 64);
>>>> Nmodeller->SetAdjustDistance(.5);
>>>>
>>>> vtkContourFilter *NIso = vtkContourFilter::New();
>>>> NIso->SetInput(Nmodeller->GetOutput());
>>>> NIso->SetValue(1, .1);
>>>>
>>>>compiler error:
>>>>
>>>>CreateCompass.cxx:138: no matching function for call to 
>>>>`vtkContourFilter::SetInput(vtkImageData*)'
>>>>/usr/local/include/vtk/vtkDataSetToPolyDataFilter.h:44: candidates are: 
>>>>virtual void vtkDataSetToPolyDataFilter::SetInput(vtkDataSet*)
>>>>
>>>>but if I run Examples/Modelling/Tcl/hello.tcl, it seems to run fine with
>>>>
>>>>the same ContourFilter input (vtkImplicitModeller GetOutput).
>>>>
>>>>Am I missing something?  How do I use ImplicitModeller with
>>>>ContourFilter?  
>>>>Why does it work when wrapped in Tcl?
>>>>
>>>>Cheers,
>>>>Chris
>>>>
>>>>__________________________________________________________________
>>>>Christopher Moore                email: Christopher.Moore at noaa.gov
>>>>Research Scientist, Oceanography                 tel: 206.526.6779
>>>>University of Washington/JISAO/NOAA-PMEL         fax: 206.526.6744
>>>>------------------------------------------------------------------
>>>>
>>>>
>>>
>>>
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>>
>>
>>
>>
> 
>