大家好，我在VTK自带例子的tutorial1，编译时，
错误是“0xc00000005:写入位置0x00000000时发生冲突。”
出问题的代码行为：
vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
coneMapper->SetInputConnection( cone->GetOutputPort() );
我跟踪断点，发现coneMapper竟然是空的，第一句话不是已经NEW了么？为何还是空的？
恳请各位大神指点，谢谢。该如何改，请不吝赐教

你把全部代码贴出来看一下呗

// First include the required header files for the VTK classes we are using.
#include "vtkConeSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkCamera.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
int main()
{
//
// Next we create an instance of vtkConeSource and set some of its
// properties. The instance of vtkConeSource "cone" is part of a
// visualization pipeline (it is a source process object); it produces data
// (output type is vtkPolyData) which other filters may process.
//
vtkConeSource *cone = vtkConeSource::New();
cone->SetHeight( 3.0 );
cone->SetRadius( 1.0 );
cone->SetResolution( 10 );
//
// In this example we terminate the pipeline with a mapper process object.
// (Intermediate filters such as vtkShrinkPolyData could be inserted in
// between the source and the mapper.) We create an instance of
// vtkPolyDataMapper to map the polygonal data into graphics primitives. We
// connect the output of the cone souece to the input of this mapper.
//
vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
coneMapper->SetInputConnection( cone->GetOutputPort() );
//
// Create an actor to represent the cone. The actor orchestrates rendering
// of the mapper*s graphics primitives. An actor also refers to properties
// via a vtkProperty instance, and includes an internal transformation
// matrix. We set this actor*s mapper to be coneMapper which we created
// above.
//
vtkActor *coneActor = vtkActor::New();
coneActor->SetMapper( coneMapper );
//
// Create the Renderer and assign actors to it. A renderer is like a
// viewport. It is part or all of a window on the screen and it is
// responsible for drawing the actors it has. We also set the background
// color here.
//
vtkRenderer *ren1= vtkRenderer::New();
ren1->AddActor( coneActor );
ren1->SetBackground( 0.1, 0.2, 0.4 );
//
// Finally we create the render window which will show up on the screen.
// We put our renderer into the render window using AddRenderer. We also
// set the size to be 300 pixels by 300.
//
vtkRenderWindow *renWin = vtkRenderWindow::New();
renWin->AddRenderer( ren1 );
renWin->SetSize( 300, 300 );
//
// Now we loop over 360 degreeees and render the cone each time.
//
int i;
for (i = 0; i < 360; ++i)
{
// render the image
renWin->Render();
// rotate the active camera by one degree
ren1->GetActiveCamera()->Azimuth( 1 );
}
//
// Free up any objects we created. All instances in VTK are deleted by
// using the Delete() method.
//
cone->Delete();
coneMapper->Delete();
coneActor->Delete();
ren1->Delete();
renWin->Delete();
return 0;
}

就是VTK自带例子的STEP1

遇到同样的问题，求问是否解决