void mitk::PicFileReader::GenerateData()
{
Image::Pointer output = this->GetOutput();
// Check to see if we can read the file given the name or prefix
//
if ( m_FileName == "" && m_FilePrefix == "" )
{
throw itk::ImageFileReaderException(__FILE__, __LINE__, "One of FileName or FilePrefix must be non-empty");
}
if( m_FileName != "")
{
mitkIpPicDescriptor* pic=MITKipPicGet(const_cast<char *>(m_FileName.c_str()), output->GetPic());
// comes upside-down (in MITK coordinates) from PIC file
ConvertHandedness(pic);
mitkIpPicTSV_t *tsv;
if ( (tsv = mitkIpPicQueryTag( pic, "SOURCE HEADER" )) != NULL)
{
if(tsv->n[0]>1e+06)
{
mitkIpPicTSV_t *tsvSH;
tsvSH = mitkIpPicDelTag( pic, "SOURCE HEADER" );
mitkIpPicFreeTag(tsvSH);
}
}
if ( (tsv = mitkIpPicQueryTag( pic, "ICON80x80" )) != NULL)
{
mitkIpPicTSV_t *tsvSH;
tsvSH = mitkIpPicDelTag( pic, "ICON80x80" );
mitkIpPicFreeTag(tsvSH);
}
if ( (tsv = mitkIpPicQueryTag( pic, "VELOCITY" )) != NULL)
{
mitkIpPicDescriptor* header = mitkIpPicCopyHeader(pic, NULL);
header->data = tsv->value;
ConvertHandedness(header);
output->SetChannel(header->data, 1);
header->data = NULL;
mitkIpPicFree(header);
mitkIpPicDelTag( pic, "VELOCITY" );
}
//slice-wise reading
//currently much too slow.
//else
//{
// int sstart, smax;
// int tstart, tmax;
// sstart=output->GetRequestedRegion().GetIndex(2);
// smax=sstart+output->GetRequestedRegion().GetSize(2);
// tstart=output->GetRequestedRegion().GetIndex(3);
// tmax=tstart+output->GetRequestedRegion().GetSize(3);
// int s,t;
// for(s=sstart; s<smax; ++s)
// {
// for(t=tstart; t<tmax; ++t)
// {
// mitkIpPicDescriptor* pic=mitkIpPicGetSlice(const_cast<char *>(m_FileName.c_str()), NULL, t*smax+s+1);
// output->SetPicSlice(pic,s,t);
// }
// }
//}
}
else
{
int position;
mitkIpPicDescriptor* pic=NULL;
int zDim=(output->GetDimension()>2?output->GetDimensions()[2]:1);
printf("\n zdim is %u \n",zDim);
for (position = 0; position < zDim; ++position)
{
char fullName[1024];
sprintf(fullName, m_FilePattern.c_str(), m_FilePrefix.c_str(), m_StartFileIndex+position);
pic=MITKipPicGet(fullName, pic);
if(pic==NULL)
{
itkDebugMacro("Pic file '" << fullName << "' does not exist.");
}
else
if(output->SetPicSlice(pic, position)==false)
{
itkDebugMacro("Image '" << fullName << "' could not be added to Image.");
}
}
if(pic!=NULL)
mitkIpPicFree(pic);
}
}
