Geometry | |
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Description | Find a feature’s geometry that touches, but does not overlap, the geometry of another feature.
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Example | Find an feature with geometry that touches DEPARE area feature with a DRVAL2 attribute that is less than or equal to 0. |
<GeometryTouches> <Filter> <And> <ObjectAcronymIsEqualTo Acronym="DEPARE"/> <PrimitiveIsEqualTo Primitive="Area"/> <AttributeValueIsLessThanOrEqualTo Acronym="DRVAL2" Value="0"/> </And> </Filter> </GeometryTouches> | |
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Description | Find if a feature’s geometry is completely contained within the geometry of a another feature.
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Example | Find features within a LNDARE area or line. |
<GeometryIsWithin> <Filter> <And> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> <Or> <PrimitiveIsEqualTo Primitive="Area"/> <PrimitiveIsEqualTo Primitive="Line"/> </Or> </And> </Filter> </GeometryIsWithin> | |
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Description | Find if a feature overlaps another feature. . |
Example | Check for a case where a feature overlaps a LNDARE area feature. |
<GeometryOverlaps> <Filter> <And> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> <PrimitiveIsEqualTo Primitive="Area"/> </And> </Filter> </GeometryOverlaps> | |
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Description | Find a feature’s geometry that contains the geometry of another feature. For example, if feature B is within feature A – then feature A contains feature B. This filter is the inverse of GeometryIsWithin. |
Example | Find a feature that contains DEPARE, DRGARE, or UNSARE area features. |
<GeometryContains> <Filter> <And> <PrimitiveIsEqualTo Primitive="Area"/> <Or> <ObjectAcronymIsEqualTo Acronym="DEPARE"/> <ObjectAcronymIsEqualTo Acronym="DRGARE"/> <ObjectAcronymIsEqualTo Acronym="UNSARE"/> </Or> </And> </Filter> </GeometryContains> | |
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Description | Find if a feature crosses another feature. |
Example | Find features that cross DEPCNT features. |
<Filter> <GeometryCrosses> <Filter> <ObjectAcronymIsEqualTo Acronym="DEPCNT"/> </Filter> </GeometryCrosses> </Filter> | |
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Description | Find if the geometry of two features are identical. For example, feature A is identical to feature B. |
Example | Find features that share the same geometry as a SEAARE feature. |
<Filter> <GeometryEquals> <Filter> <ObjectAcronymIsEqualTo Acronym="SEAARE"/> </Filter> </GeometryEquals> </Filter> | |
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Description | Evaluate if the first feature is in a different location than the second feature. Features do not touch each other. |
Example | Find DEPCNT features that do not touch DEPARE features. |
<Filter> <ObjectAcronymIsEqualTo Acronym="DEPCNT"/> <GeometryIsDisjoint> <Filter> <ObjectAcronymIsEqualTo Acronym="DEPARE"/> </Filter> </GeometryIsDisjoint> </Filter> | |
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Description | Find features with geometry that intersects another feature. This operator is the opposite of |
Example | Find LNDARE features that intersect with another feature. |
<GeometryIntersects> <Filter> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> </Filter> </GeometryIntersects> | |
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Description | Find if an area feature is covered by one or more area features listed in the filter. The area cannot be covered by a single area but can extend over more than one area feature. Polygon D is covered by polygons A, B, and C
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Example | Find area features that are covered by LNDARE,BRIDGE,FLODOC,OFSPLF, or PONTON area features. |
<GeometryIsCoveredBy> <Filter> <And> <PrimitiveIsEqualTo Primitive="Area"/> <Or> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> <ObjectAcronymIsEqualTo Acronym="BRIDGE"/> <ObjectAcronymIsEqualTo Acronym="FLODOC"/> <ObjectAcronymIsEqualTo Acronym="OFSPLF"/> <ObjectAcronymIsEqualTo Acronym="PONTON"/> </Or> </And> </Filter> </GeometryIsCoveredBy> | |
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Description | Find if a feature covers one or more features listed in the filter. These can be: • Area features that cover area, line, point or sounding features. • Line features that cover line, point or sounding features. • Point/sounding features that cover (are equal to) point/sounding features. |
Example | Find an area feature that covers WATTUR or SOUNDG areas. |
<Filter> <GeometryCovers> <Filter> <Or> <ObjectAcronymIsEqualTo Acronym="WATTUR"/> <ObjectAcronymIsEqualTo Acronym="SOUNDG"/> </Or> </Filter> </GeometryCovers> </Filter> | |
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Description | Find if the feature shares at least one spatial feature with another feature. The operator inspects all representations that are sharing the spatial to see if the representation is used by the other feature being processed.
The |
Attributes | • • • • • • • • The • • • • If |
Example 1 | Find features that share all edges with a LNDARE area feature. |
<GeometrySharesSpatial AllSpatials="True"> <Filter> <And> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> <PrimitiveIsEqualTo Primitive="Area"/> </And> </Filter> </GeometrySharesSpatial> | |
Example 2 | Find features that features share edges in the same direction as an LNDARE area feature. |
<GeometrySharesSpatial SameDirection="True"> <Filter> <And> <PrimitiveIsEqualTo Primitive="Area"/> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> </And> </Filter> </GeometrySharesSpatial> | |
Example 3 | Find an area feature that shares a spatial with a COALNE or SLCONS line but is NOT shared with a LNDARE area. |
<Filter> <And> <PrimitiveIsEqualTo Primitive="Area"/> <GeometrySharesSpatial> <Filter> <And> <Or> <ObjectAcronymIsEqualTo Acronym="COALNE"/> <ObjectAcronymIsEqualTo Acronym="SLCONS"/> </Or> <PrimitiveIsEqualTo Primitive="Line"/> </And> <SpatialNotSharedWith> <Filter> <And> <ObjectAcronymIsEqualTo Acronym="LNDARE"/> <PrimitiveIsEqualTo Primitive="Area"/> </And> </Filter> </SpatialNotSharedWith> </Filter> </GeometrySharesSpatial> </And> </Filter> | |
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Description | Test if all vertices on a line are straight. This test is applied only to line features. This is not a filter tag; it is tested within a filter and does not contain a filter like other geometry tests. A tolerance can be also applied to this test. The tolerance is the allowed distance between a completely straight line and a section of line with a deviation but might still be considered straight. A default tolerance of 0.01 metres is available, but tolerance values can be changed.
In the above example, A and B represent the distance that an intermediate vertex is offset from the end points of the line. If this distance is greater than the specified tolerance value, a warning message is reported. |
Attributes | • |
Example | Find a feature with a CATTRK attribute value of 1 with geometry that is NOT a straight line and where the divergence exceeds the specified tolerance value. |
<Filter> <And> <AttributeValueIsEqualTo Acronym="CATTRK" Value="1"/> <Not> <GeometryIsAStraightLine Tolerance="0.01"/> </Not> </And> </Filter> | |
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Description | Find if a master feature is located within a certain distance or tolerance of other slave features. This operator requires additional filters and it only works for point features. Points that share geometry with the feature being tested will be skipped. |
Attributes | – |
Example | Find a point feature that is located near a LIGHTS or TOPMAR point feature, but is not sharing the same geometry. |
<Filter> <And> <PrimitiveIsEqualTo Primitive="Point" /> <PointsWithinTolerance> <Filter> <And> <PrimitiveIsEqualTo Primitive="Point" /> <Or> <ObjectAcronymIsEqualTo Acronym="LIGHTS" /> <ObjectAcronymIsEqualTo Acronym="TOPMAR" /> </Or> </And> </Filter> </PointsWithinTolerance> </And> </Filter> | |
