/// <summary>
/// Creates a graphviz format representation of the tree edges and its nodes.
/// </summary>
/// <param name="userContext">The user context.</param>
/// <param name="tree">The tree.</param>
/// <param name="treeNodes">The tree nodes.</param>
/// <param name="treeIterationMode">The tree iteration mode.</param>
/// <param name="onlyValid">if set to <c>true</c> only valid relations are included.</param>
/// <param name="format">The format.</param>
/// <returns>A GraphViz graph.</returns>
public static string CreateGraphvizFormatRepresentation(
IUserContext userContext,
TaxonRelationsTree tree,
ICollection <ITaxonRelationsTreeNode> treeNodes,
TaxonRelationsTreeIterationMode treeIterationMode,
bool onlyValid,
GraphVizFormat format)
{
// Get edges.
var edges = tree.GetAllEdges(
treeNodes,
treeIterationMode,
onlyValid,
treeIterationMode != TaxonRelationsTreeIterationMode.OnlyChildren);
string str = CreateGraphvizFormatRepresentation(
userContext,
tree,
edges,
treeNodes,
format);
return(str);
}
