Package org.locationtech.jts.algorithm
Class BoundaryNodeRule.EndPointBoundaryNodeRule
- java.lang.Object
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- org.locationtech.jts.algorithm.BoundaryNodeRule.EndPointBoundaryNodeRule
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- All Implemented Interfaces:
BoundaryNodeRule
- Enclosing interface:
- BoundaryNodeRule
public static class BoundaryNodeRule.EndPointBoundaryNodeRule extends java.lang.Object implements BoundaryNodeRule
ABoundaryNodeRule
which specifies that any points which are endpoints of lineal components are in the boundary of the parent geometry. This corresponds to the "intuitive" topological definition of boundary. Under this ruleLinearRing
s have a non-empty boundary (the common endpoint of the underlying LineString).This rule is useful when dealing with linear networks. For example, it can be used to check whether linear networks are correctly noded. The usual network topology constraint is that linear segments may touch only at endpoints. In the case of a segment touching a closed segment (ring) at one point, the Mod2 rule cannot distinguish between the permitted case of touching at the node point and the invalid case of touching at some other interior (non-node) point. The EndPoint rule does distinguish between these cases, so is more appropriate for use.
- Version:
- 1.7
- Author:
- Martin Davis
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.locationtech.jts.algorithm.BoundaryNodeRule
BoundaryNodeRule.EndPointBoundaryNodeRule, BoundaryNodeRule.Mod2BoundaryNodeRule, BoundaryNodeRule.MonoValentEndPointBoundaryNodeRule, BoundaryNodeRule.MultiValentEndPointBoundaryNodeRule
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Field Summary
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Fields inherited from interface org.locationtech.jts.algorithm.BoundaryNodeRule
ENDPOINT_BOUNDARY_RULE, MOD2_BOUNDARY_RULE, MONOVALENT_ENDPOINT_BOUNDARY_RULE, MULTIVALENT_ENDPOINT_BOUNDARY_RULE, OGC_SFS_BOUNDARY_RULE
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Constructor Summary
Constructors Constructor Description EndPointBoundaryNodeRule()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
isInBoundary(int boundaryCount)
Tests whether a point that lies in boundaryCount geometry component boundaries is considered to form part of the boundary of the parent geometry.
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Method Detail
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isInBoundary
public boolean isInBoundary(int boundaryCount)
Description copied from interface:BoundaryNodeRule
Tests whether a point that lies in boundaryCount geometry component boundaries is considered to form part of the boundary of the parent geometry.- Specified by:
isInBoundary
in interfaceBoundaryNodeRule
- Parameters:
boundaryCount
- the number of component boundaries that this point occurs in- Returns:
- true if points in this number of boundaries lie in the parent boundary
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