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Fixed #11948 -- Added interpolate and project linear referencing methods

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Thanks novalis for the report and the initial patch, and Anssi
Kääriäinen and Justin Bronn for the review.
This commit is contained in:
Claude Paroz 2012-09-29 11:01:08 +02:00
parent 15d355d79d
commit 2f6e00a840
5 changed files with 108 additions and 7 deletions
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25
docs/ref/contrib/gis/geos.txt
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@ -416,11 +416,36 @@ quarter circle (defaults is 8).
Returns a :class:`GEOSGeometry` representing the points making up this
geometry that do not make up other.
.. method:: GEOSGeometry.interpolate(distance)
.. method:: GEOSGeometry.interpolate_normalized(distance)
.. versionadded:: 1.5
Given a distance (float), returns the point (or closest point) within the
geometry (:class:`LineString` or :class:`MultiLineString`) at that distance.
The normalized version takes the distance as a float between 0 (origin) and 1
(endpoint).
Reverse of :meth:`GEOSGeometry.project`.
.. method:: GEOSGeometry:intersection(other)
Returns a :class:`GEOSGeometry` representing the points shared by this
geometry and other.
.. method:: GEOSGeometry.project(point)
.. method:: GEOSGeometry.project_normalized(point)
.. versionadded:: 1.5
Returns the distance (float) from the origin of the geometry
(:class:`LineString` or :class:`MultiLineString`) to the point projected on the
geometry (that is to a point of the line the closest to the given point).
The normalized version returns the distance as a float between 0 (origin) and 1
(endpoint).
Reverse of :meth:`GEOSGeometry.interpolate`.
.. method:: GEOSGeometry.relate(other)
Returns the DE-9IM intersection matrix (a string) representing the