tryIntersections

Calculates the intersection of two geometries. The returned collection contains one geometry of each dimension for which there are intersections. For example, if both inputs are polylines, the collection contains at most two geometries: the first a multipoint containing the points at which the lines cross, and the second a polyline containing the lines of overlap. If a crossing point lies within a line of overlap, only the line of overlap is present. The result set is not self-intersecting. If there are no crossing points or there are no lines of overlap, the respective geometry is not present in the returned collection. If the input geometries do not intersect, the resulting collection is empty. The table below shows, for each combination of pairs of input geometry types, the types of geometry that are contained within the returned collection if there are intersections of that type.

Set of potential output geometry types for pairs of input geometry types

Input type	Point/Multipoint	Polyline	Polygon/Envelope
Point/Multipoint	Multipoint	Multipoint	Multipoint
Polyline	Multipoint	Multipoint, Polyline	Multipoint, Polyline
Polygon/Envelope	Multipoint	Multipoint, Polyline	Multipoint, Polyline, Polygon

The geometries in the returned collection are sorted by ascending dimensionality. For example, multipoint (dimension 0) then polyline (dimension 1) then polygon (dimension 2) for the intersection of two geometries with area that have intersections of those types.

Supports true curves.

Return

A collection of geometry objects that represent the intersection of the given geometries. Returns an empty list if the input geometries do not intersect, or if geometry1 and geometry2 do not have equivalent spatial references.

Since

200.1.0

Parameters

See also