/// <summary>
/// returns -1 if neighbourFeature is polygon, geometryComponent is entireGeometry and point lies within neighbourFeature.
/// otherwise returns distance.
/// </summary>
private static double GetDistance([NotNull] IPoint point,
[NotNull] IFeature neighbourFeature,
[NotNull] IPoint nearestPoint,
GeometryComponent geometryComponent,
double maxNeededDistance,
out bool isWithinPolygon,
out bool onRightSide)
{
isWithinPolygon = false;
if (geometryComponent == GeometryComponent.Boundary &&
neighbourFeature.Shape is IPolygon)
{
return(GetDistanceToCurve(point, neighbourFeature, nearestPoint,
maxNeededDistance, out onRightSide));
}
if (geometryComponent == GeometryComponent.Vertices)
{
onRightSide = false;
return(GetDistanceToVertices(point, neighbourFeature, nearestPoint,
maxNeededDistance));
}
// other cases: create component geometry explicitly
IGeometry neighbourGeometry =
Assert.NotNull(GeometryComponentUtils.GetGeometryComponent(
neighbourFeature, geometryComponent));
if (geometryComponent == GeometryComponent.EntireGeometry &&
neighbourGeometry is IPolygon)
{
if (((IRelationalOperator)neighbourGeometry).Disjoint(point))
{
// the point is outside the polygon - get the distance to the boundary
// (faster than getting the distance to the entire polygon)
return(GetDistanceToCurve(point, neighbourFeature, nearestPoint,
maxNeededDistance, out onRightSide));
}
// the point is inside the polygon or exactly on the boundary
isWithinPolygon = true;
onRightSide = false; // polygons borders are defined counter clock wise
return(-1);
}
if (geometryComponent == GeometryComponent.EntireGeometry &&
neighbourGeometry is IPolyline)
{
return(GetDistanceToCurve(point, neighbourFeature, nearestPoint,
maxNeededDistance, out onRightSide));
}
// Use IProximityOperator.QueryNearestPoint so that the error geometry can be constructed
((IProximityOperator)neighbourGeometry).QueryNearestPoint(
point, esriSegmentExtension.esriNoExtension, nearestPoint);
onRightSide = false;
return(((IProximityOperator)point).ReturnDistance(nearestPoint));
}
private int ReportError([NotNull] IFeature pointFeature,
[NotNull] IFeature referenceFeature,
[NotNull] IPoint point,
[NotNull] IPoint nearPoint,
double distance,
double minimumDistance, bool isWithinPolygon,
GeometryComponent geometryComponent,
[CanBeNull] IValidRelationConstraint validConstraint)
{
IssueCode issueCode;
string description;
IGeometry errorGeometry;
if (isWithinPolygon)
{
description = "Point lies within polygon";
errorGeometry = GeometryFactory.Clone(point);
issueCode = validConstraint == null
? Codes[Code.PointWithin]
: Codes[Code.PointWithin_ConstraintNotFulfilled];
}
else
{
if (geometryComponent == GeometryComponent.EntireGeometry)
{
description =
string.Format(
"Point is too close to reference feature: {0}",
FormatLengthComparison(distance, "<", minimumDistance,
_spatialReference));
}
else
{
description =
string.Format(
"Point is too close to {0} of reference feature: {1}",
GeometryComponentUtils.GetDisplayText(geometryComponent),
FormatLengthComparison(distance, "<", minimumDistance,
_spatialReference));
}
bool reportAsConnectionLine = MinimumErrorLineLength >= 0 &&
distance >= MinimumErrorLineLength;
errorGeometry =
GetErrorGeometry(point, nearPoint, reportAsConnectionLine);
issueCode = validConstraint == null
? Codes[Code.PointTooClose]
: Codes[Code.PointTooClose_ConstraintNotFulfilled];
}
return(ReportError(description, errorGeometry,
issueCode, _shapeFieldName,
pointFeature, referenceFeature));
}
