+ // Create the output data
+ if (im.size()==1)
+ {
+ // Only one image : give it
+ vtkImageData* out = vtkImageData::New();
+ out->ShallowCopy(mReader.GetImage(im.front()->ImageGetFullFileName()));
+ f.push_back( out );
+ }
+ else if (im.size()>1)
+ {
+ vtkImageData* first = mReader.GetImage( im.front()->ImageGetFullFileName() );
+ if (first->GetDataDimension()==2)
+ {
+ // n2D to 3D
+ vtkImageData* out = vtkImageData::New();
+ out->CopyStructure(first);
+ out->SetScalarType(first->GetScalarType());
+ int ext[6];
+ first->GetExtent(ext);
+ ext[5] = im.size();
+ out->SetExtent(ext);
+ // LG : TODO : Z Spacing ?
+
+ out->AllocateScalars();
+
+ //first->Print(std::cout);
+ // out->Print(std::cout);
+
+ int dim[3];
+ first->GetDimensions(dim);
+ unsigned long imsize =
+ ( (unsigned long)first->GetScalarPointer(0,1,0)
+ - (unsigned long)first->GetScalarPointer(0,0,0))
+ *dim[1];
+
+ int slice = 0;
+ std::vector<DicomNode*>::iterator it;
+ for (it=im.begin(); it!=im.end(); ++it)
+ {
+ //std::cout << "copying slice "<<slice <<std::endl;
+ vtkImageData* cur = mReader.GetImage( (*it)->ImageGetFullFileName() );
+
+ void* src = cur->GetScalarPointer(0,0,0);
+ void* dst = out->GetScalarPointer(0,0,slice);
+ // std::cout << "src="<<src<<std::endl;
+ // std::cout << "dst="<<dst<<std::endl;
+ // std::cout << "siz="<<imsize<<std::endl;
+ memcpy(dst,src,imsize);
+
+ /*
+ // verif
+ int ii,jj;
+ for (ii=1;ii<4;ii++) {
+ for (jj=1;jj<4;jj++) {
+ int x = (int)(ii*dim[0] / 4);
+ int y = (int)(jj*dim[1] / 4);
+ std::cout << cur->GetScalarComponentAsFloat(x,y,0,0)
+ << " vs "
+ << out->GetScalarComponentAsFloat(x,y,slice,0)
+ << std::endl;
+ }
+ }
+ */
+
+ slice++;
+ }
+ f.push_back(out);
+ }
+ else
+ {
+ // n3D
+ std::vector<DicomNode*>::iterator it;
+ for (it=im.begin(); it!=im.end(); ++it)
+ {
+ vtkImageData* out = vtkImageData::New();
+ out->ShallowCopy(mReader.GetImage((*it)->ImageGetFullFileName()));
+ f.push_back(out);
+ }
+ }
+ }