public EdgeHash(Template template, EdgeLookup lookup)
{
EdgeLookup = lookup;
var edgeConstructor = new EdgeConstructor();
for (int referenceMinutia = 0; referenceMinutia < template.Minutiae.Length; ++referenceMinutia)
for (int neighborMinutia = 0; neighborMinutia < template.Minutiae.Length; ++neighborMinutia)
if (referenceMinutia != neighborMinutia)
{
var edge = new IndexedEdge()
{
Shape = edgeConstructor.Construct(template, referenceMinutia, neighborMinutia),
Location = new EdgeLocation(referenceMinutia, neighborMinutia)
};
foreach (var hash in lookup.HashCoverage(edge.Shape))
{
object value;
List<IndexedEdge> list;
if (!Hash.TryGetValue(hash, out value))
Hash[hash] = edge;
else
{
list = value as List<IndexedEdge>;
if (list == null)
{
Hash[hash] = list = new List<IndexedEdge>(1);
list.Add((IndexedEdge)value);
}
list.Add(edge);
}
}
}
}