void
CreateStringFromInput(vtkImageData *img, float *zbuffer, unsigned char *&str,
int &len)
{
// make a shallow copy for if we need to attach zbuffer data
vtkImageData *tmp = vtkImageData::New();
tmp->ShallowCopy(img);
//
// Figure out what the width and height should be before we start altering
// the image (the image should not be altered, but you never know with VTK)
//
int dims[3];
tmp->GetDimensions(dims);
int width = dims[0];
int height = dims[1];
// add the zbuffer as point data if we have one
if (zbuffer)
{
vtkFloatArray *zArray = vtkFloatArray::New();
zArray->SetNumberOfComponents(1);
int iOwnIt = 1; // 1 means we own it -- you don't delete it.
zArray->SetArray(zbuffer, width * height, iOwnIt);
zArray->SetName("zbuffer");
tmp->GetPointData()->AddArray(zArray);
zArray->Delete();
}
CreateStringFromVTKInput(tmp, str, len);
tmp->Delete();
}
static
void
CreateStringFromInput(vtkImageData *img, vtkFloatArray *zbuf, unsigned char *&str,
int &len)
{
// make a shallow copy for if we need to attach zbuffer data
vtkImageData *tmp = vtkImageData::New();
tmp->ShallowCopy(img);
// add the zbuffer as point data if we have one
if (zbuf)
tmp->GetPointData()->AddArray(zbuf);
CreateStringFromVTKInput(tmp, str, len);
tmp->Delete();
}
