[vtkusers] Problem with VTK4.4 + BCB6 + WinXP Pro

[Xianjin Yang]

Hi Dean,

After playing around with Compiler and Linker settings, I fixed the problem
by setting "Data Alignment" to "Quad Word" on the BCB6 Advanced Compiler
settings. 

Regards.

Yang

-----Original Message-----
From: Xianjin Yang [mailto:Yang at AGIUSA.COM] 
Sent: Monday, March 29, 2004 12:58 PM
To: vtkusers archive
Cc: 'Dean Inglis'
Subject: [vtkusers] Problem with VTK4.4 + BCB6 + WinXP Pro


Hi Dean, 
To demo the problem with VTK4.4 + BCB6, I created a small demo out of
VTK\Examples\GUI\Win32\vtkBorland\ProjectDemo\Project_vtkDemo  and
/VTK/Examples/DataManipulation/Cxx/Arrays.cxx. I simply replaced the the
button event handler with Arrays.cxx.
When my demo program calls vtkCellArray->InsertNextCell(4), I got an Excess
Violation. BCB error message says 
"Access violation at the address 0040263F in module Project_vtkDemo.exe.
Write of address 00000000." The BCB debugger pointed to the error code in
VTK below:
inline void vtkIdTypeArray::InsertValue(vtkIdType id, vtkIdType i) 
{ 
  if ( id >= this->Size ) 
    { 
    this->ResizeAndExtend(id+1); 
    } 
  this->Array[id] = i;               <------------ Error code inside VTK 
  if ( id > this->MaxId ) 
    { 
    this->MaxId = id; 
    } 
} 
FYI, I had no problem to run the TCL version of the same code
/VTK/Examples/DataManipulation/TCL/Arrays.tcl under VTK4.4.
Thank you for your time. 
Yang 



----------- My Demo Code Below ----------- 
void __fastcall TVTK_Form::bc1Click(TObject *Sender) 
{ 
  vtkFloatArray* pcoords = vtkFloatArray::New(); 
  pcoords->SetNumberOfComponents(3); 
  pcoords->SetNumberOfTuples(4); 
  float pts[4][3] = { {0.0, 0.0, 0.0}, {0.0, 1.0, 0.0}, 
                      {1.0, 0.0, 0.0}, {1.0, 1.0, 0.0} }; 
  for (int i=0; i<4; i++) pcoords->SetTuple(i, pts[i]); 
  vtkPoints* points = vtkPoints::New(); 
  points->SetData(pcoords); 
  vtkCellArray* strips = vtkCellArray::New(); 
  strips->InsertNextCell(4);    <------------------ Caused Access Violation 
  strips->InsertCellPoint(0); 
  strips->InsertCellPoint(1); 
  strips->InsertCellPoint(2); 
  strips->InsertCellPoint(3); 
  vtkIntArray* temperature = vtkIntArray::New(); 
  temperature->SetName("Temperature"); 
  temperature->InsertNextValue(10); 
  temperature->InsertNextValue(20); 
  temperature->InsertNextValue(30); 
  temperature->InsertNextValue(40); 
  vtkDoubleArray* vorticity = vtkDoubleArray::New(); 
  vorticity->SetName("Vorticity"); 
  vorticity->InsertNextValue(2.7); 
  vorticity->InsertNextValue(4.1); 
  vorticity->InsertNextValue(5.3); 
  vorticity->InsertNextValue(3.4); 
  vtkPolyData* polydata = vtkPolyData::New(); 
  polydata->SetPoints(points); 
  polydata->SetStrips(strips); 
  polydata->GetPointData()->SetScalars(temperature); 
  polydata->GetPointData()->AddArray(vorticity); 
  vtkPolyDataMapper* mapper = vtkPolyDataMapper::New(); 
  mapper->SetInput(polydata); 
  mapper->SetScalarRange(0, 40); 
  vtkActor* actor = vtkActor::New(); 
  actor->SetMapper(mapper); 
  vtkWindow1->GetRenderer()->AddActor(actor); 
  pcoords->Delete(); 
  points->Delete(); 
  strips->Delete(); 
  temperature->Delete(); 
  vorticity->Delete(); 
  polydata->Delete(); 
  mapper->Delete(); 
  actor->Delete(); 
  vtkWindow1->GetRenderer()->ResetCamera(); 
  vtkWindow1->Invalidate(); 
} 


-----Original Message----- 
From: Dean Inglis [mailto:dean.inglis at camris.ca] 
Sent: Monday, March 29, 2004 10:56 AM 
To: vtkusers archive 
Cc: Yang at AGIUSA.COM 
Subject: Re: [vtkusers] Display model coordinate with vtkImagePlaneWidget 


Hi Yang, 
>continuous cursoring is found in vtk4.4 and up, but I could not make my 
BCB6 
>project to work with vtk4.4. I am still using vtk4.2. This may be 
>another sign to abandon BCB. 
that's odd.  I have about 6 different active projects that successfully
compile and run error free both on BCB5 and BCB6 with latest cvs VTK release
(Intel Pentium 4 processors, Windows 2000 OS).  What specific problems are
you having?
Dean 
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