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Shapefile

Shapefile makes ESRI shapefiles available programmatically. Currently all shape types other than MultiPatch have been implemented. MultiPatch is a complex shape that will require some thought. Further only Polygon has been tested as I only have Polygon shapefiles at the moment and have not taken the time to mock up sample data, although I am fairly confident the code matches the documentation precisely.

Shapefile is designed to be rendering method agnostic and accomplishes this by exposing the vertices as lat/lon points that may then be transformed to the desired projection.

Shapefile is available in both Javascript and Ruby with a C++ version coming sometime. A Java version may be considered at some point but at this time I do not intend on writing one.

A live two dimensional orthographic projection Javascript example can be found at http://tlahoda.github.com/shapefile/examples/render2d.html A three dimensional WebGL example can be found at http://tlahoda.github.com/shapefile/examples/webgl.html . Be forewarned this demo may take a long time to load (as in a minute or so) on some browsers (namely firefox). It is best viewed in Google Chrome.


####Copyright (C) 2011 Thomas P. Lahoda

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA

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A Javascript library for reading ESRI Shapefiles

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