pyinterp.geometry.geographic.algorithms.relation

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pyinterp.geometry.geographic.algorithms.relation#

pyinterp.geometry.geographic.algorithms.relation(geometry1: pyinterp.core.geometry.geographic.Point, geometry2: pyinterp.core.geometry.geographic.Point) → str#
pyinterp.geometry.geographic.algorithms.relation(geometry1: pyinterp.core.geometry.geographic.LineString, geometry2: pyinterp.core.geometry.geographic.LineString) → str
pyinterp.geometry.geographic.algorithms.relation(geometry1: pyinterp.core.geometry.geographic.Ring, geometry2: pyinterp.core.geometry.geographic.Ring) → str
pyinterp.geometry.geographic.algorithms.relation(geometry1: pyinterp.core.geometry.geographic.Ring, geometry2: pyinterp.core.geometry.geographic.Polygon) → str
pyinterp.geometry.geographic.algorithms.relation(geometry1: pyinterp.core.geometry.geographic.Polygon, geometry2: pyinterp.core.geometry.geographic.Ring) → str
pyinterp.geometry.geographic.algorithms.relation(geometry1: pyinterp.core.geometry.geographic.Polygon, geometry2: pyinterp.core.geometry.geographic.Polygon) → str

Computes the DE-9IM (Dimensionally Extended nine-Intersection Model) matrix for two geometries.

The DE-9IM is a topological model that describes the spatial relationship between two geometries using a 3x3 matrix. Each cell in the matrix describes the dimension of the intersection between interior/boundary/exterior of the two geometries.

Parameters:

  • geometry1 – First geometry.

  • geometry2 – Second geometry.

Returns:

A string representing the 9-character DE-9IM matrix pattern (e.g., “FF2F11212”). Each character can be: - ‘F’ (false): empty set (no intersection) - ‘0’: point (0-dimensional) intersection - ‘1’: line (1-dimensional) intersection - ‘2’: area (2-dimensional) intersection

Examples

>>> point = Point(4.0, 1.0)
>>> polygon = Polygon(...)
>>> matrix = relation(point, polygon)
>>> # Returns string like "0FFFFF212" indicating the topological
>>> # relationship
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