private static IMultipoint RemoveAllowedInteriorIntersections(
[NotNull] IMultipoint intersections,
[NotNull] IPolyline polyline1,
[NotNull] IPolyline polyline2,
AllowedLineInteriorIntersections allowedLineInteriorIntersections,
double vertexSearchDistance)
{
switch (allowedLineInteriorIntersections)
{
case AllowedLineInteriorIntersections.None:
return(intersections);
case AllowedLineInteriorIntersections.AtVertexOnBothLines:
return(RemoveVertexIntersections(intersections, polyline1, polyline2,
vertexSearchDistance));
default:
throw new ArgumentOutOfRangeException(nameof(allowedLineInteriorIntersections));
}
}
public static IMultipoint GetInvalidIntersections(
[NotNull] IPolyline polyline1,
[NotNull] IPolyline polyline2,
AllowedEndpointInteriorIntersections allowedEndpointInteriorIntersections,
AllowedLineInteriorIntersections allowedLineInteriorIntersections,
bool reportOverlaps,
double vertexSearchDistance)
{
Assert.ArgumentNotNull(polyline1, nameof(polyline1));
Assert.ArgumentNotNull(polyline2, nameof(polyline2));
IntersectionPointOptions intersectionPointOptions =
reportOverlaps
? IntersectionPointOptions.IncludeLinearIntersectionEndpoints
: IntersectionPointOptions.DisregardLinearIntersections;
// NOTE: this does not reliably find endpoint/interior intersections -> empty!! (even if Disjoint does return false)
const bool assumeIntersecting = true;
IMultipoint intersections = IntersectionUtils.GetIntersectionPoints(polyline1,
polyline2,
assumeIntersecting,
intersectionPointOptions);
// TODO catch missed end point/interior intersections by checking end points explicitly
if (intersections.IsEmpty)
{
return(intersections);
}
intersections = RemoveAllowedEndPointIntersections(intersections,
polyline1, polyline2,
allowedEndpointInteriorIntersections,
vertexSearchDistance);
return(RemoveAllowedInteriorIntersections(intersections,
polyline1, polyline2,
allowedLineInteriorIntersections,
vertexSearchDistance));
}