/// <summary>
/// Converts this route to a feature collection.
/// </summary>
/// <returns></returns>
public FeatureCollection ToFeatureCollection()
{
var featureCollection = new FeatureCollection();
if(this.Segments == null)
{
return featureCollection;
}
for (int i = 0; i < this.Segments.Length; i++)
{
// create a line string for the current segment.
if (i > 0)
{ // but only do so when there is a previous point available.
var segmentLineString = new LineString(
new GeoCoordinate(this.Segments[i - 1].Latitude, this.Segments[i - 1].Longitude),
new GeoCoordinate(this.Segments[i].Latitude, this.Segments[i].Longitude));
var segmentTags = this.Segments[i].Tags;
var attributesTable = new SimpleGeometryAttributeCollection();
if (segmentTags != null)
{ // there are tags.
foreach (var tag in segmentTags)
{
attributesTable.Add(tag.Key, tag.Value);
}
}
attributesTable.Add("time", this.Segments[i].Time);
attributesTable.Add("distance", this.Segments[i].Distance);
if (this.Segments[i].Vehicle != null)
{
attributesTable.Add("vehicle", this.Segments[i].Vehicle);
}
featureCollection.Add(new Feature(segmentLineString, attributesTable));
}
// create points.
if (this.Segments[i].Points != null)
{
foreach (var point in this.Segments[i].Points)
{
// build attributes.
var currentPointTags = point.Tags;
var attributesTable = new SimpleGeometryAttributeCollection();
if (currentPointTags != null)
{ // there are tags.
foreach (var tag in currentPointTags)
{
attributesTable.Add(tag.Key, tag.Value);
}
}
// build feature.
var pointGeometry = new Point(new GeoCoordinate(point.Latitude, point.Longitude));
featureCollection.Add(new Feature(pointGeometry, attributesTable));
}
}
}
return featureCollection;
}
/// <summary>
/// Reads the properties/attributes.
/// </summary>
/// <param name="jsonReader"></param>
/// <returns></returns>
internal static GeometryAttributeCollection ReadAttributes(JsonReader jsonReader)
{
var attributes = new SimpleGeometryAttributeCollection();
while (jsonReader.Read())
{
if (jsonReader.TokenType == JsonToken.EndObject)
{ // end of geometry.
break;
}
if (jsonReader.TokenType == JsonToken.PropertyName)
{
var key = (string)jsonReader.Value;
jsonReader.Read();
var value = jsonReader.Value;
attributes.Add(new GeometryAttribute()
{
Key = key,
Value = value
});
}
}
return attributes;
}
/// <summary>
/// Gets a feature collection representing the given route based on the given aggregation type.
/// </summary>
/// <param name="route"></param>
/// <param name="aggregationType"></param>
/// <returns></returns>
public override FeatureCollection GetFeatures(Route route, RouteAggregationType aggregationType)
{
if (route == null) { throw new ArgumentNullException("route"); }
if (aggregationType == RouteAggregationType.All)
{ // one LineString.
var featureCollection = new FeatureCollection();
var coordinates = route.GetPoints();
if (coordinates.Count > 1)
{
var lineString = new LineString(coordinates.ToArray());
var attributes = new SimpleGeometryAttributeCollection();
attributes.Add("osmsharp:total_time", route.TotalTime.ToInvariantString());
attributes.Add("osmsharp:total_distance", route.TotalDistance.ToInvariantString());
var feature = new Feature(lineString, attributes);
featureCollection.Add(feature);
}
return featureCollection;
}
else if(aggregationType == RouteAggregationType.Modal)
{ // modal.
// aggregate.
var aggregator = new ModalAggregator(new OsmRoutingInterpreter());
var microPlanner = new ModalMicroPlanner(new ModalLanguageGenerator(), new OsmRoutingInterpreter());
var aggregated = aggregator.Aggregate(route);
var instructions = InstructionGenerator.Generate(microPlanner, route, aggregated);
return this.GetFeatures(route, instructions);
}
else // modal and instructions.
{ // instructions.
var instructions = this.GetInstructions(route);
return this.GetFeatures(route, instructions);
}
}
/// <summary>
/// Converts the given route to a line string.
/// </summary>
/// <returns></returns>
public override FeatureCollection GetFeatures(Route route, RouteAggregationType aggregationType)
{
if (aggregationType == RouteAggregationType.All ||
aggregationType == RouteAggregationType.Modal)
{ // one mode, one LineString.
var featureCollection = new FeatureCollection();
var coordinates = route.GetPoints();
if (coordinates.Count > 1)
{
var lineString = new LineString(coordinates.ToArray());
var attributes = new SimpleGeometryAttributeCollection();
attributes.Add("osmsharp:total_time", route.TotalTime.ToInvariantString());
attributes.Add("osmsharp:total_distance", route.TotalDistance.ToInvariantString());
var feature = new Feature(lineString, attributes);
featureCollection.Add(feature);
}
return featureCollection;
}
else
{ // one LineString per instruction.
var instructions = this.GetInstructions(route);
var featureCollection = new FeatureCollection();
for (int i = 0; i < instructions.Count; i++)
{
var instruction = instructions[i];
var coordinates = new List<GeoCoordinate>();
for (int segmentIdx = instruction.FirstSegmentIdx; segmentIdx <= instruction.LastSegmentIdx; segmentIdx++)
{
coordinates.Add(new GeoCoordinate(route.Segments[segmentIdx].Latitude, route.Segments[segmentIdx].Longitude));
}
// build attributes.
var currentArcTags = instruction.MetaData;
var attributesTable = new SimpleGeometryAttributeCollection();
if (currentArcTags != null)
{ // there are tags.
foreach (var tag in currentArcTags)
{
if (tag.Value != null)
{
var t = tag.Value.GetType();
if (t.IsPrimitive || t == typeof(Decimal) || t == typeof(String))
{
attributesTable.Add(tag.Key, tag.Value);
}
}
}
}
// build feature.
var lineString = new LineString(coordinates);
featureCollection.Add(new Feature(lineString, attributesTable));
// build poi-features if any.
if (instruction.Pois != null)
{
foreach (var poi in instruction.Pois)
{
// build attributes.
var poiTags = poi.Tags;
var poiAttributesTable = new SimpleGeometryAttributeCollection();
if (poiTags != null)
{ // there are tags.
foreach (var tag in poiTags)
{
poiAttributesTable.Add(tag.Key, tag.Value);
}
}
// build feature.
var point = new Point(poi.Location);
featureCollection.Add(new Feature(point, poiAttributesTable));
}
}
}
return featureCollection;
}
}
/// <summary>
/// Generates a feature collection with one LineString per instruction and all poi's as Points.
/// </summary>
/// <returns></returns>
private FeatureCollection GetFeatures(Route route, List<Instruction> instructions)
{
var featureCollection = new FeatureCollection();
for (int i = 0; i < instructions.Count; i++)
{
var instruction = instructions[i];
var coordinates = new List<GeoCoordinate>();
for (int segmentIdx = instruction.FirstSegmentIdx; segmentIdx <= instruction.LastSegmentIdx; segmentIdx++)
{
coordinates.Add(new GeoCoordinate(route.Segments[segmentIdx].Latitude, route.Segments[segmentIdx].Longitude));
}
// build attributes.
var currentArcTags = instruction.MetaData;
var attributesTable = new SimpleGeometryAttributeCollection();
if (currentArcTags != null)
{ // there are tags.
foreach (var tag in currentArcTags)
{
if (tag.Value != null)
{
var t = tag.Value.GetType();
if (t.IsPrimitive || t == typeof(Decimal) || t == typeof(String))
{
attributesTable.Add(tag.Key, tag.Value);
}
}
}
}
// build feature.
var lineString = new LineString(coordinates);
featureCollection.Add(new Feature(lineString, attributesTable));
// build poi-features if any.
if (instruction.Pois != null)
{
foreach (var poi in instruction.Pois)
{
// build attributes.
var poiTags = poi.Tags;
var poiAttributesTable = new SimpleGeometryAttributeCollection();
if (poiTags != null)
{ // there are tags.
foreach (var tag in poiTags)
{
poiAttributesTable.Add(tag.Key, tag.Value);
}
}
// build feature.
var point = new Point(poi.Location);
featureCollection.Add(new Feature(point, poiAttributesTable));
}
}
}
return featureCollection;
}