Enum ValidationRule
- All Implemented Interfaces:
Serializable
,Comparable<ValidationRule>
,java.lang.constant.Constable
Indicates how JTS geometries (notably polygons but applies to other geometries too) are
validated (if at all) and repaired (if at all). This setting usually only applies to
ShapeReader
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Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
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Enum Constant Summary
Enum ConstantsEnum ConstantDescriptionGeometries will be explicitly validated on creation, possibly resulting in an exception:InvalidShapeException
.Geometries will not be validated (because it's kinda expensive to calculate).Invalid polygons are repaired using thebuffer(0)
technique.Invalid Geometries are repaired by taking the convex hull. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic ValidationRule
Returns the enum constant of this type with the specified name.static ValidationRule[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Details
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none
Geometries will not be validated (because it's kinda expensive to calculate). You may or may not ultimately get an error at some point; results are undefined. However, note that coordinates will still be validated for falling within the world boundaries.- See Also:
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error
Geometries will be explicitly validated on creation, possibly resulting in an exception:InvalidShapeException
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repairConvexHull
Invalid Geometries are repaired by taking the convex hull. The result will very likely be a larger shape that matches false-positives, but no false-negatives. SeeGeometry.convexHull()
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repairBuffer0
Invalid polygons are repaired using thebuffer(0)
technique. From the JTS FAQ:The buffer operation is fairly insensitive to topological invalidity, and the act of computing the buffer can often resolve minor issues such as self-intersecting rings. However, in some situations the computed result may not be what is desired (i.e. the buffer operation may be "confused" by certain topologies, and fail to produce a result which is close to the original. An example where this can happen is a "bow-tie: or "figure-8" polygon, with one very small lobe and one large one. Depending on the orientations of the lobes, the buffer(0) operation may keep the small lobe and discard the "valid" large lobe).
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Constructor Details
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ValidationRule
private ValidationRule()
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Method Details
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values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
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