private List <RouterPoint> _resolvedPoints; // only the valid resolved points.
/// <summary>
/// Executes the actual algorithm.
/// </summary>
protected override void DoRun(CancellationToken cancellationToken)
{
if (_resolvedPoints != null)
{ // points are already available.
_errors = new Dictionary <int, LocationError>();
this.HasSucceeded = true;
return;
}
_errors = new Dictionary <int, LocationError>(_locations.Length);
_resolvedPoints = new List <RouterPoint>(_locations.Length);
_originalLocationIndexes = new List <int>(_locations.Length);
// resolve all locations.
var resolvedPoints = new RouterPoint[_locations.Length];
for (var i = 0; i < _locations.Length; i++)
{
Result <RouterPoint> resolveResult = null;
if (_matchEdge != null)
{ // use an edge-matcher.
resolveResult = _router.TryResolve(_profiles, _locations[i], (edge) =>
{
return(_matchEdge(edge, i));
}, _maxSearchDistance);
}
else
{ // don't use an edge-matcher.
resolveResult = _router.TryResolve(_profiles, _locations[i], _maxSearchDistance);
}
if (!resolveResult.IsError)
{ // resolving was succesful.
resolvedPoints[i] = resolveResult.Value;
}
}
// remove all points that could not be resolved.
for (var i = 0; i < resolvedPoints.Length; i++)
{
if (resolvedPoints[i] == null)
{ // could not be resolved!
_errors[i] = new LocationError()
{
Code = LocationErrorCode.NotResolved,
Message = "Location could not be linked to the road network."
};
}
else
{ // resolve is ok.
resolvedPoints[i].Attributes.AddOrReplace("index", i.ToInvariantString());
_originalLocationIndexes.Add(i);
_resolvedPoints.Add(resolvedPoints[i]);
}
}
this.HasSucceeded = true;
}
/// <summary>
/// Executes the algorithm.
/// </summary>
protected override void DoRun()
{
_errors = new Dictionary <int, LocationError>(_locations.Length);
_resolvedPoints = new List <RouterPoint>(_locations.Length);
_resolvedPointsIndices = new List <int>(_locations.Length);
// resolve all locations.
var resolvedPoints = new RouterPoint[_locations.Length];
var profiles = new Profile[] { _profile };
for (var i = 0; i < _locations.Length; i++)
{
Result <RouterPoint> resolveResult = null;
if (_matchEdge != null)
{ // use an edge-matcher.
resolveResult = _router.TryResolve(profiles, _locations[i], (edge) =>
{
return(_matchEdge(edge, i));
}, this.SearchDistanceInMeter);
}
else
{ // don't use an edge-matcher.
resolveResult = _router.TryResolve(profiles, _locations[i], this.SearchDistanceInMeter);
}
if (!resolveResult.IsError)
{ // resolving was succesful.
resolvedPoints[i] = resolveResult.Value;
}
}
// remove all points that could not be resolved.
for (var i = 0; i < resolvedPoints.Length; i++)
{
if (resolvedPoints[i] == null)
{ // could not be resolved!
_errors[i] = new LocationError()
{
Code = LocationErrorCode.NotResolved,
Message = "Location could not be linked to the road network."
};
}
else
{ // resolve is ok.
resolvedPoints[i].Attributes.AddOrReplace("index", i.ToInvariantString());
_resolvedPointsIndices.Add(i);
_resolvedPoints.Add(resolvedPoints[i]);
}
}
// calculate matrix.
var nonNullResolvedArray = _resolvedPoints.ToArray();
var nonNullInvalids = new HashSet <int>();
_weights = _router.CalculateWeight(_profile, _weightHandler, nonNullResolvedArray, nonNullInvalids);
// take into account the non-null invalids now.
if (nonNullInvalids.Count > 0)
{ // shrink lists and add errors.
foreach (var invalid in nonNullInvalids)
{
_errors[_resolvedPointsIndices[invalid]] = new LocationError()
{
Code = LocationErrorCode.NotRoutable,
Message = "Location could not routed to or from."
};
}
_resolvedPoints = _resolvedPoints.ShrinkAndCopyList(nonNullInvalids);
_resolvedPointsIndices = _resolvedPointsIndices.ShrinkAndCopyList(nonNullInvalids);
_weights = _weights.SchrinkAndCopyMatrix(nonNullInvalids);
}
this.HasSucceeded = true;
}