/// <summary>
/// Builds the scene.
/// </summary>
/// <param name="map"></param>
/// <param name="zoomFactor"></param>
/// <param name="center"></param>
/// <param name="view"></param>
private void BuildScene(Map map, float zoomFactor, GeoCoordinate center, View2D view)
{
// get the indexed object at this zoom.
HashSet<ArcId> interpretedObjects;
if (!_interpretedObjects.TryGetValue ((int)zoomFactor, out interpretedObjects)) {
interpretedObjects = new HashSet<ArcId> ();
_interpretedObjects.Add ((int)zoomFactor, interpretedObjects);
}
// build the boundingbox.
var viewBox = view.OuterBox;
var box = new GeoCoordinateBox (map.Projection.ToGeoCoordinates (viewBox.Min [0], viewBox.Min [1]),
map.Projection.ToGeoCoordinates (viewBox.Max [0], viewBox.Max [1]));
foreach (var requestedBox in _requestedBoxes) {
if (requestedBox.Contains (box)) {
return;
}
}
_requestedBoxes.Add (box);
//// set the scene backcolor.
//SimpleColor? color = _styleInterpreter.GetCanvasColor ();
//_scene.BackColor = color.HasValue
// ? color.Value.Value
// : SimpleColor.FromArgb (0, 255, 255, 255).Value;
// get data.
foreach (var arc in _dataSource.GetArcs(box)) {
// translate each object into scene object.
var arcId = new ArcId () {
Vertex1 = arc.Key,
Vertex2 = arc.Value.Key
};
if (!interpretedObjects.Contains (arcId)) {
interpretedObjects.Add (arcId);
// create nodes.
float latitude, longitude;
_dataSource.GetVertex (arcId.Vertex1, out latitude, out longitude);
var node1 = CompleteNode.Create (arcId.Vertex1);
node1.Coordinate = new GeoCoordinate (latitude, longitude);
_dataSource.GetVertex (arcId.Vertex2, out latitude, out longitude);
var node2 = CompleteNode.Create (arcId.Vertex2);
node2.Coordinate = new GeoCoordinate (latitude, longitude);
// create way.
var way = CompleteWay.Create (-1);
if (arc.Value.Value.Forward) {
way.Nodes.Add (node1);
way.Nodes.Add (node2);
} else {
way.Nodes.Add (node2);
way.Nodes.Add (node1);
}
way.Tags.AddOrReplace (_dataSource.TagsIndex.Get (arc.Value.Value.Tags));
_styleInterpreter.Translate (_scene, map.Projection, way);
interpretedObjects.Add (arcId);
}
}
}
/// Saves to an XML writer.
private void Save(XmlWriter xml)
{
xml.WriteStartDocument();
xml.WriteStartElement("graphml", xmlns.NamespaceName);
xml.WriteAttributeString("xmlns", "xsi", null, xmlnsXsi.NamespaceName);
xml.WriteAttributeString("xmlns", "y", null, xmlnsY.NamespaceName);
xml.WriteAttributeString("xmlns", "yed", null, xmlnsYed.NamespaceName);
xml.WriteAttributeString("xsi", "schemaLocation", null, xsiSchemaLocation);
for (int i = 0; i < Properties.Count; i++)
{
var p = Properties[i];
p.Id = "d" + i;
p.GetKeyElement().WriteTo(xml);
}
xml.WriteStartElement("graph", xmlns.NamespaceName);
xml.WriteAttributeString("id", "G");
xml.WriteAttributeString("edgedefault", "directed");
xml.WriteAttributeString("parse.nodes", Graph.NodeCount().ToString(CultureInfo.InvariantCulture));
xml.WriteAttributeString("parse.edges", Graph.ArcCount().ToString(CultureInfo.InvariantCulture));
xml.WriteAttributeString("parse.order", "nodesfirst");
DefinePropertyValues(xml, Graph);
Dictionary <string, Node> nodeById = new Dictionary <string, Node>();
if (NodeId == null)
{
NodeId = new Dictionary <Node, string>();
}
foreach (var kv in NodeId)
{
if (nodeById.ContainsKey(kv.Value))
{
throw new Exception("Duplicate node id " + kv.Value);
}
nodeById[kv.Value] = kv.Key;
}
foreach (var node in Graph.Nodes())
{
string id;
NodeId.TryGetValue(node, out id);
if (id == null)
{
id = node.Id.ToString(CultureInfo.InvariantCulture);
while (nodeById.ContainsKey(id))
{
id += '_';
}
NodeId[node] = id;
nodeById[id] = node;
}
xml.WriteStartElement("node", xmlns.NamespaceName);
xml.WriteAttributeString("id", id);
DefinePropertyValues(xml, node);
xml.WriteEndElement(); // node
}
foreach (var arc in Graph.Arcs())
{
string id;
if (ArcId != null)
{
ArcId.TryGetValue(arc, out id);
}
else
{
id = null;
}
xml.WriteStartElement("edge", xmlns.NamespaceName);
if (id != null)
{
xml.WriteAttributeString("id", id);
}
if (Graph.IsEdge(arc))
{
xml.WriteAttributeString("directed", "false");
}
xml.WriteAttributeString("source", NodeId[Graph.U(arc)]);
xml.WriteAttributeString("target", NodeId[Graph.V(arc)]);
DefinePropertyValues(xml, arc);
xml.WriteEndElement(); // edge
}
xml.WriteEndElement(); // graph
xml.WriteEndElement(); // graphml
}
/// <summary>
/// Builds the scene.
/// </summary>
/// <param name="map"></param>
/// <param name="zoomFactor"></param>
/// <param name="center"></param>
/// <param name="view"></param>
private void BuildScene(Map map, float zoomFactor, GeoCoordinate center, View2D view)
{
// get the indexed object at this zoom.
HashSet <ArcId> interpretedObjects;
if (!_interpretedObjects.TryGetValue((int)zoomFactor, out interpretedObjects))
{
interpretedObjects = new HashSet <ArcId>();
_interpretedObjects.Add((int)zoomFactor, interpretedObjects);
}
// build the boundingbox.
var viewBox = view.OuterBox;
var box = new GeoCoordinateBox(map.Projection.ToGeoCoordinates(viewBox.Min[0], viewBox.Min[1]),
map.Projection.ToGeoCoordinates(viewBox.Max[0], viewBox.Max[1]));
foreach (var requestedBox in _requestedBoxes)
{
if (requestedBox.Contains(box))
{
return;
}
}
_requestedBoxes.Add(box);
//// set the scene backcolor.
//SimpleColor? color = _styleInterpreter.GetCanvasColor ();
//_scene.BackColor = color.HasValue
// ? color.Value.Value
// : SimpleColor.FromArgb (0, 255, 255, 255).Value;
// get data.
foreach (var arc in _dataSource.GetEdges(box))
{
// translate each object into scene object.
var arcId = new ArcId()
{
Vertex1 = arc.Key,
Vertex2 = arc.Value.Key
};
if (!interpretedObjects.Contains(arcId))
{
interpretedObjects.Add(arcId);
// create nodes.
float latitude, longitude;
_dataSource.GetVertex(arcId.Vertex1, out latitude, out longitude);
var node1 = new Node();
node1.Id = arcId.Vertex1;
node1.Latitude = latitude;
node1.Longitude = longitude;
_dataSource.GetVertex(arcId.Vertex2, out latitude, out longitude);
var node2 = new Node();
node2.Id = arcId.Vertex2;
node2.Latitude = latitude;
node2.Longitude = longitude;
// create way.
var way = CompleteWay.Create(-1);
if (arc.Value.Value.Forward)
{
way.Nodes.Add(node1);
way.Nodes.Add(node2);
}
else
{
way.Nodes.Add(node2);
way.Nodes.Add(node1);
}
way.Tags.AddOrReplace(_dataSource.TagsIndex.Get(arc.Value.Value.Tags));
_styleInterpreter.Translate(_scene, map.Projection, way);
interpretedObjects.Add(arcId);
}
}
}