ConnectedInteriorTester class

This class tests that the interior of an area {@link Geometry} ( {@link Polygon} or {@link MultiPolygon} ) is connected. This can happen if:

  • a shell self-intersects
  • one or more holes form a connected chain touching a shell at two different points
  • one or more holes form a ring around a subset of the interior
If a disconnected situation is found the location of the problem is recorded.

@version 1.7

Constructors

ConnectedInteriorTester(GeometryGraph geomGraph)

Properties

disconnectedRingcoord ↔ Coordinate?
getter/setter pair
geometryFactory ↔ GeometryFactory
getter/setter pair
geomGraph ↔ GeometryGraph
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

buildEdgeRings(List dirEdges) → List
Form DirectedEdges in graph into Minimal EdgeRings. (Minimal Edgerings must be used, because only they are guaranteed to provide a correct isHole computation)
getCoordinate() → Coordinate?
hasUnvisitedShellEdge(List edgeRings) → bool
Check if any shell ring has an unvisited edge. A shell ring is a ring which is not a hole and which has the interior of the parent area on the RHS. (Note that there may be non-hole rings with the interior on the LHS, since the interior of holes will also be polygonized into CW rings by the linkAllDirectedEdges() step)
isInteriorsConnected() → bool
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
setInteriorEdgesInResult(PlanarGraph graph) → void
toString() → String
A string representation of this object.
inherited
visitInteriorRing(LineString ring, PlanarGraph graph) → void
visitLinkedDirectedEdges(DirectedEdge? start) → void
visitShellInteriors(Geometry? g, PlanarGraph graph) → void
Mark all the edges for the edgeRings corresponding to the shells of the input polygons. Only ONE ring gets marked for each shell - if there are others which remain unmarked this indicates a disconnected interior.

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

findDifferentPoint(List<Coordinate> coord, Coordinate pt) → Coordinate?