/// <summary>
/// This method returns a list with all edges in the file
/// </summary>
/// <param name="doc">Representant of the XML file to be read</param>
/// <param name="points">a list with the nodes</param>
/// <returns>the edge list</returns>
private static IEnumerable<AGraphMLEdge> getEdgesFromFile(XmlDocument doc, IEnumerable<AGraphMLNode> points)
{
// return value
List<AGraphMLEdge> edges = new List<AGraphMLEdge>();
// temporary attributes
AGraphMLNode pStart;
AGraphMLNode pEnd;
string connectionType;
// set root element
XmlElement root = doc.DocumentElement;
// add the namespace
XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("x", "http://graphml.graphdrawing.org/xmlns");
// get all xml-tags with nodes
XmlNodeList nodeList = root.SelectNodes(attributeXPathEdge, nsmgr);
foreach (XmlNode node in nodeList)
{
// init values
pStart = null;
pEnd = null;
connectionType = "";
// get source / target as attribute from the child
foreach (XmlAttribute attr in node.Attributes)
{
// get source
if (attr.Name == attributeNameSource)
pStart = getNodeById(attr.InnerText, points);
// get target
if (attr.Name == attributeNameTarget)
pEnd = getNodeById(attr.InnerText, points);
}
// get connection type
foreach (XmlNode child in node.ChildNodes)
{
// search in attributes
foreach (XmlAttribute attr in child.Attributes)
{
// connection type
if (attr.InnerText.Equals(attributeNameConnectionType))
connectionType = child.InnerText;
}
}
// add edge to list
AGraphMLEdge e = new AGraphMLEdge(pStart, pEnd, connectionType);
edges.Add(e);
}
// return edge list
return edges;
}
/// <summary>
/// This method returns a list with all edges in the file
/// </summary>
/// <param name="doc">Representant of the XML file to be read</param>
/// <param name="points">a list with the nodes</param>
/// <returns>the edge list</returns>
private static IEnumerable <AGraphMLEdge> getEdgesFromFile(XmlDocument doc, IEnumerable <AGraphMLNode> points)
{
// return value
List <AGraphMLEdge> edges = new List <AGraphMLEdge>();
// temporary attributes
AGraphMLNode pStart;
AGraphMLNode pEnd;
string connectionType;
// set root element
XmlElement root = doc.DocumentElement;
// add the namespace
XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("x", "http://graphml.graphdrawing.org/xmlns");
// get all xml-tags with nodes
XmlNodeList nodeList = root.SelectNodes(attributeXPathEdge, nsmgr);
foreach (XmlNode node in nodeList)
{
// init values
pStart = null;
pEnd = null;
connectionType = "";
// get source / target as attribute from the child
foreach (XmlAttribute attr in node.Attributes)
{
// get source
if (attr.Name == attributeNameSource)
{
pStart = getNodeById(attr.InnerText, points);
}
// get target
if (attr.Name == attributeNameTarget)
{
pEnd = getNodeById(attr.InnerText, points);
}
}
// get connection type
foreach (XmlNode child in node.ChildNodes)
{
// search in attributes
foreach (XmlAttribute attr in child.Attributes)
{
// connection type
if (attr.InnerText.Equals(attributeNameConnectionType))
{
connectionType = child.InnerText;
}
}
}
// add edge to list
AGraphMLEdge e = new AGraphMLEdge(pStart, pEnd, connectionType);
edges.Add(e);
}
// return edge list
return(edges);
}