Class SpatialCrosses
- Namespace
- YndigoBlue.Velocity.Functions
- Assembly
- YndigoBlue.Velocity.dll
Represents the ST_Crosses spatial predicate function that tests if two geometries cross each other.
public class SpatialCrosses : Function, IElement, ICheckItem, IDefaultItem, IFilterItem- Inheritance
-
SpatialCrosses
- Implements
Remarks
Warning
Spatial functions are not available in the Community Edition of Velocity. They require the Full Edition.
The ST_Crosses function returns true if the two spatial objects have some, but not all, interior points in common, and the dimension of the intersection is less than the maximum dimension of the two geometries. This typically applies to cases where a line crosses a polygon, or a line crosses another line. According to the DE-9IM model, this represents a specific type of intersection pattern. Useful for finding features that pass through other features, like roads crossing parcels or pipelines crossing boundaries. OGC-compliant.
Return Type: Boolean (true/false).
| Relationship | ST_Crosses Result |
|---|---|
| Two lines intersecting at interior | TRUE |
| Line enters and exits polygon | TRUE |
| Lines touch only at endpoint | FALSE (use ST_Touches) |
| Line fully inside polygon | FALSE (use ST_Within) |
Constructors
- SpatialCrosses(Geometry, Column)
Initializes a new instance of ST_Crosses with a geometry literal and column.
- SpatialCrosses(Geometry, Function)
Initializes a new instance of ST_Crosses with a Geometry literal and function result for function chaining.
- SpatialCrosses(Column, Geometry)
Initializes a new instance of ST_Crosses with a column and geometry literal.
- SpatialCrosses(Column, Column)
Initializes a new instance of ST_Crosses with two columns for spatial joins.
- SpatialCrosses(Column, Function)
Initializes a new instance of ST_Crosses with a column and function result for function chaining.
- SpatialCrosses(Column, Geography)
Initializes a new instance of ST_Crosses with a column and geography literal.
- SpatialCrosses(Function, Geometry)
Initializes a new instance of ST_Crosses with a function result and Geometry literal for function chaining.
- SpatialCrosses(Function, Column)
Initializes a new instance of ST_Crosses with a function result and column for function chaining.
- SpatialCrosses(Function, Function)
Initializes a new instance of ST_Crosses with two function results for function chaining.
- SpatialCrosses(Function, Geography)
Initializes a new instance of ST_Crosses with a function result and Geography literal for function chaining.
- SpatialCrosses(Geography, Column)
Initializes a new instance of ST_Crosses with a geography literal and column.
- SpatialCrosses(Geography, Function)
Initializes a new instance of ST_Crosses with a Geography literal and function result for function chaining.