/*!
* Write Field data to stream
* @param[in] str output stream
* @param[in] field field to be written
*/
void VTKUnstructuredGrid::writeFieldData( std::fstream &str, VTKField &field ){
if( field.usesInterface() ){
flushData( str, field.getCodification(), field.getName() ) ;
} else if( field.autoWrite() ) {
field.flushData( str ) ;
} else{
if(field.getName() == "types" && homogeneousType != VTKElementType::UNDEFINED){
uint8_t type = (uint8_t) homogeneousType ;
for( unsigned int i=0; i<nr_cells; ++i)
genericIO::flushBINARY(str, type );
} else if(field.getName() == "offsets" && homogeneousType != VTKElementType::UNDEFINED){
uint8_t n = vtk::getNNodeInElement(homogeneousType) ;
uint64_t offset(0) ;
for( unsigned int i=0; i<nr_cells; ++i){
offset += n ;
genericIO::flushBINARY(str, offset );
}
}
}
};
/*!
* Converts a Field information to string as requested by VTK format.
* @param[in] field_ Field information
* @return string in VTK format
*/
std::string vtk::convertDataArrayToString( const VTKField &field_ ){
std::stringstream os("") ;
os << " <DataArray "
<< "type=\"" << vtk::convertEnumToString( field_.getType() ) << "\" "
<< "Name=\"" << field_.getName() << "\" "
<< "NumberOfComponents=\""<< unsigned(field_.getComponents()) << "\" "
<< "format=\"" << vtk::convertEnumToString(field_.getCodification()) << "\" ";
if( field_.getCodification() == VTKFormat::APPENDED ){
os << "offset=\"" << field_.getOffset() << "\" " ;
};
os << ">" ;
return( os.str() ) ;
};
/*!
* Read Field data from stream
* @param[in] str input stream
* @param[in] field field to be read
*/
void VTKUnstructuredGrid::readFieldData( std::fstream &str, VTKField &field ){
if( field.usesInterface() ){
absorbData( str, field.getCodification(), field.getName() ) ;
} else if( field.autoWrite() ){
field.absorbData( str ) ;
} else {
//dont do nothing
}
return;
}
/*!
* Converts a Field information to string as requested by VTK format.
* @param[in] field_ Field information
* @return string in VTK format
*/
std::string vtk::convertDataArrayToString( const VTKField &field_ ){
std::stringstream os("") ;
unsigned comp = static_cast<unsigned>(field_.getFieldType()) ;
if( field_.getFieldType() != VTKFieldType::SCALAR && field_.getFieldType() != VTKFieldType::VECTOR )
comp = 1 ;
os << " <DataArray "
<< "type=\"" << vtk::convertEnumToString( field_.getDataType() ) << "\" "
<< "Name=\"" << field_.getName() << "\" "
<< "NumberOfComponents=\""<< comp << "\" "
<< "format=\"" << vtk::convertEnumToString(field_.getCodification()) << "\" ";
if( field_.getCodification() == VTKFormat::APPENDED ){
os << "offset=\"" << field_.getOffset() << "\" " ;
};
os << ">" ;
return( os.str() ) ;
};
/*!
* Reads data array from stream and stores in field information
* @param[in] str output stream
* @param[out] field_ field information
*/
bool VTK::readDataArray( std::fstream &str, VTKField &field_ ){
std::string line_ ;
while( getline(str, line_) ){
if( bitpit::utils::keywordInString( line_, field_.getName() ) ){
if( vtk::convertStringToDataArray( line_, field_ ) ){
if( field_.getCodification() == VTKFormat::ASCII) {
field_.setPosition( str.tellg() ) ;
};
return true ;
};
};
};
return false ;
};
/*!
* Reads data headers from strean.
* All field information available in file are stored.
* @param[in] str output stream
*/
void VTK::readDataHeader( std::fstream &str ){
std::fstream::pos_type pos_ ;
VTKLocation location;
std::string locationString ;
std::string line, loc_;
std::stringstream ss;
bool read ;
VTKField temp ;
VTKField** ptemp ;
for( int i=0; i<2; i++){
ss.str("") ;
if( i== 0) {
location = VTKLocation::POINT;
locationString = "Point" ;
} else if( i== 1) {
location = VTKLocation::CELL;
locationString = "Cell" ;
}
temp.setLocation( location ) ;
ss << "</" << locationString << "Data>" ;
loc_ = ss.str();
read= true ;
if( ! getline( str, line) ) read = false ;
if( bitpit::utils::keywordInString( line, loc_) ) read=false ;
while( read ){
if( vtk::convertStringToDataArray( line, temp ) ) {
if( temp.getCodification() == VTKFormat::ASCII) {
pos_ = str.tellg() ;
}
else{
pos_ = 0 ;
};
temp.setPosition( pos_ ) ;
if( ! getFieldByName( temp.getName(), ptemp )) {
data.push_back( new VTKField( temp ) ) ;
}
else{
(*ptemp)->setOffset( temp.getOffset() ) ;
(*ptemp)->setLocation( temp.getLocation() ) ;
(*ptemp)->setDataType( temp.getDataType() ) ;
(*ptemp)->setFieldType( temp.getFieldType() ) ;
(*ptemp)->setCodification( temp.getCodification() ) ;
};
};
if( ! getline( str, line) ) read = false ;
if( bitpit::utils::keywordInString( line, loc_) ) read=false ;
};
};
return ;
};
