MRG

Code/Common/otbDataNode.h

@@ -233,6 +233,8 @@ public:
  * \param key The name of the field.
  */
   bool HasField(std::string key) const;
+
+
   /**
    * \return the nth field of the node as a std::pair of (key,value).
    * \param index the index of the field to return.
@@ -242,6 +244,12 @@ public:
  * \return the number of fields in the node.
  */
 //   unsigned int GetNumberOfFields() const;
+
+  /**
+    * \return the name of fields in the node.
+    */
+  std::vector<string> GetFieldList() const;
+
 /**
  * Clear all fields.
  */

Code/Common/otbDataNode.txx

@@ -354,6 +354,8 @@ DataNode<TPrecision, VDimension, TValuePrecision>
   return false;
 }
 
+
+
 /*
 template <class TPrecision, unsigned int VDimension, class TValuePrecision>
 typename DataNode<TPrecision,VDimension,TValuePrecision>
@@ -380,6 +382,25 @@ DataNode<TPrecision,VDimension,TValuePrecision>
 {
   return m_FieldMap.size();
 }
+*/
+
+template <class TPrecision, unsigned int VDimension, class TValuePrecision>
+std::vector<std::string>
+DataNode<TPrecision, VDimension, TValuePrecision>
+::GetFieldList() const
+{
+  VectorDataKeywordlist keywordlist;
+  if (this->GetMetaDataDictionary().HasKey(MetaDataKey::VectorDataKeywordlistKey))
+    {
+    itk::ExposeMetaData<VectorDataKeywordlist>(this->GetMetaDataDictionary(),
+                                               MetaDataKey::VectorDataKeywordlistKey, keywordlist);
+    return keywordlist.GetFieldList();
+    }
+  std::vector<std::string> empty;
+  return empty;
+}
+
+/*
 template <class TPrecision, unsigned int VDimension, class TValuePrecision>
 void
 DataNode<TPrecision,VDimension,TValuePrecision>
@@ -387,6 +408,9 @@ DataNode<TPrecision,VDimension,TValuePrecision>
 {
   m_FieldMap.clear();
 }*/
+
+
+
 template <class TPrecision, unsigned int VDimension, class TValuePrecision>
 bool
 DataNode<TPrecision, VDimension, TValuePrecision>

Code/IO/otbVectorDataKeywordlist.cxx

@@ -166,6 +166,18 @@ VectorDataKeywordlist
   return m_FieldList.size();
 }
 
+std::vector<std::string>
+VectorDataKeywordlist
+::GetFieldList() const
+{
+  std::vector<std::string> res;
+  for (int i = 0; i < m_FieldList.size(); ++i)
+    {
+    res.push_back((m_FieldList[i].first)->GetNameRef());
+    }
+  return res;
+}
+
 void
 VectorDataKeywordlist
 ::operator =(const Self& p)

Code/IO/otbVectorDataKeywordlist.h

@@ -88,6 +88,11 @@ public:
     */
   unsigned int GetNumberOfFields() const;
 
+  /**
+    * \return the name of fields in the node.
+    */
+  std::vector<std::string> GetFieldList() const;
+
   /**
    * Print the keyword list
    */