mitkTransferFunctionPropertyDeserializer.cpp
Go to the documentation of this file.
00001 /*========================================================================= 00002 00003 Program: Medical Imaging & Interaction Toolkit 00004 Language: C++ 00005 Date: $Date$ 00006 Version: $Revision: 1.12 $ 00007 00008 Copyright (c) German Cancer Research Center, Division of Medical and 00009 Biological Informatics. All rights reserved. 00010 See MITKCopyright.txt or https://www.mitk.org/copyright.html for details. 00011 00012 This software is distributed WITHOUT ANY WARRANTY; without even 00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00014 PURPOSE. See the above copyright notices for more information. 00015 00016 =========================================================================*/ 00017 00018 #include "mitkTransferFunctionPropertyDeserializer.h" 00019 00020 namespace mitk { 00021 00022 mitk::TransferFunctionPropertyDeserializer::TransferFunctionPropertyDeserializer() 00023 { 00024 } 00025 00026 mitk::TransferFunctionPropertyDeserializer::~TransferFunctionPropertyDeserializer() 00027 { 00028 } 00029 00030 BaseProperty::Pointer mitk::TransferFunctionPropertyDeserializer::Deserialize(TiXmlElement* element) 00031 { 00032 if (!element) 00033 return NULL; 00034 00035 TransferFunction::Pointer tf = TransferFunction::New(); 00036 00037 // deserialize scalar opacity function 00038 TiXmlElement* scalarOpacityPointlist = element->FirstChildElement("ScalarOpacity"); 00039 if (scalarOpacityPointlist == NULL) 00040 return NULL; 00041 00042 tf->ClearScalarOpacityPoints(); 00043 00044 for( TiXmlElement* pointElement = scalarOpacityPointlist->FirstChildElement("point"); pointElement != NULL; pointElement = pointElement->NextSiblingElement("point")) 00045 { 00046 double x; 00047 double y; 00048 if (pointElement->QueryDoubleAttribute("x", &x) == TIXML_WRONG_TYPE) 00049 return NULL; // TODO: can we do a better error handling? 00050 if (pointElement->QueryDoubleAttribute("y", &y) == TIXML_WRONG_TYPE) 00051 return NULL; // TODO: can we do a better error handling? 00052 tf->AddScalarOpacityPoint(x, y); 00053 } 00054 00055 TiXmlElement* gradientOpacityPointlist = element->FirstChildElement("GradientOpacity"); 00056 if (gradientOpacityPointlist == NULL) 00057 return NULL; 00058 00059 tf->ClearGradientOpacityPoints(); 00060 00061 for( TiXmlElement* pointElement = gradientOpacityPointlist->FirstChildElement("point"); pointElement != NULL; pointElement = pointElement->NextSiblingElement("point")) 00062 { 00063 double x; 00064 double y; 00065 if (pointElement->QueryDoubleAttribute("x", &x) == TIXML_WRONG_TYPE) 00066 return NULL; // TODO: can we do a better error handling? 00067 if (pointElement->QueryDoubleAttribute("y", &y) == TIXML_WRONG_TYPE) 00068 return NULL; // TODO: can we do a better error handling? 00069 tf->AddGradientOpacityPoint(x, y); 00070 } 00071 00072 TiXmlElement* rgbPointlist = element->FirstChildElement("Color"); 00073 if (rgbPointlist == NULL) 00074 return NULL; 00075 vtkColorTransferFunction* ctf = tf->GetColorTransferFunction(); 00076 if (ctf == NULL) 00077 return NULL; 00078 00079 ctf->RemoveAllPoints(); 00080 00081 for( TiXmlElement* pointElement = rgbPointlist->FirstChildElement("point"); pointElement != NULL; pointElement = pointElement->NextSiblingElement("point")) 00082 { 00083 double x; 00084 double r,g,b, midpoint, sharpness; 00085 if (pointElement->QueryDoubleAttribute("x", &x) == TIXML_WRONG_TYPE) 00086 return NULL; // TODO: can we do a better error handling? 00087 if (pointElement->QueryDoubleAttribute("r", &r) == TIXML_WRONG_TYPE) 00088 return NULL; // TODO: can we do a better error handling? 00089 if (pointElement->QueryDoubleAttribute("g", &g) == TIXML_WRONG_TYPE) 00090 return NULL; // TODO: can we do a better error handling? 00091 if (pointElement->QueryDoubleAttribute("b", &b) == TIXML_WRONG_TYPE) 00092 return NULL; // TODO: can we do a better error handling? 00093 if (pointElement->QueryDoubleAttribute("midpoint", &midpoint) == TIXML_WRONG_TYPE) 00094 return NULL; // TODO: can we do a better error handling? 00095 if (pointElement->QueryDoubleAttribute("sharpness", &sharpness) == TIXML_WRONG_TYPE) 00096 return NULL; // TODO: can we do a better error handling? 00097 ctf->AddRGBPoint(x, r, g, b, midpoint, sharpness); 00098 } 00099 return TransferFunctionProperty::New(tf).GetPointer(); 00100 } 00101 00102 mitk::TransferFunction::Pointer mitk::TransferFunctionPropertyDeserializer::DeserializeTransferFunction( const char *filePath ) 00103 { 00104 TiXmlDocument document( filePath ); 00105 00106 if (!document.LoadFile()) 00107 { 00108 MITK_ERROR << "Could not open/read/parse " << filePath << "\nTinyXML reports: " << document.ErrorDesc() << std::endl; 00109 return NULL; 00110 } 00111 00112 // find version node --> note version in some variable 00113 int fileVersion = 1; 00114 TiXmlElement* versionObject = document.FirstChildElement("Version"); 00115 if (versionObject) 00116 { 00117 if ( versionObject->QueryIntAttribute( "TransferfunctionVersion", &fileVersion ) != TIXML_SUCCESS ) 00118 { 00119 MITK_WARN << "Transferfunction file " << filePath << " does not contain version information! Trying version 1 format."; 00120 } 00121 } 00122 00123 TiXmlElement* input = document.FirstChildElement("TransferFunction"); 00124 00125 TransferFunctionPropertyDeserializer::Pointer tfpd = TransferFunctionPropertyDeserializer::New(); 00126 BaseProperty::Pointer bp = tfpd->Deserialize(input); 00127 TransferFunctionProperty::Pointer tfp = dynamic_cast<TransferFunctionProperty*>(bp.GetPointer()); 00128 00129 if(tfp.IsNotNull()) 00130 { 00131 TransferFunction::Pointer tf = tfp->GetValue(); 00132 return tf; 00133 } 00134 MITK_WARN << "Can't deserialize transferfunction"; 00135 return NULL; 00136 } 00137 } // namespace 00138 // important to put this into the GLOBAL namespace (because it starts with 'namespace mitk') 00139 MITK_REGISTER_SERIALIZER(TransferFunctionPropertyDeserializer);
