From 4ddfb632d08ff0d4a3352ffa18818fc10db54b04 Mon Sep 17 00:00:00 2001 From: Kelsey Jordahl Date: Sat, 29 Jun 2013 16:32:21 -0400 Subject: [PATCH] Note in README about geometry and coordinate reference systems --- README.md | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index 7503325..1e28870 100644 --- a/README.md +++ b/README.md @@ -3,10 +3,16 @@ Introduction GeoPandas is a project to add support for geographic data to [pandas](http://pandas.pydata.org) objects. It currently implements -`GeoSeries` and `GeoDataFrame` types which is are subclasses of `pandas.Series` -and `pandas.DataFrame` respectively. GeoPandas objects can act on -[shapely](http://toblerity.github.io/shapely) geometry objects and perform geometric -operations. +`GeoSeries` and `GeoDataFrame` types which is are subclasses of +`pandas.Series` and `pandas.DataFrame` respectively. GeoPandas +objects can act on [shapely](http://toblerity.github.io/shapely) +geometry objects and perform geometric operations. + +GeoPandas geometry operations are cartesian. Objects are naive with +respect to coordinate systems, although the coordinate reference +system (crs) is stored on an instance when loading from a file. In +the future, enforcement of like coordinates for operations and +projection into other reference systems may be implemented. Examples --------