NPMap is a JavaScript astraction library developed, maintained, and used by the U.S. National Park Service. It creates a "wrapper" around various web mapping APIs (namely Bing, Google, Leaflet, and Modest Maps) and exposes commonly-used functionality through a simple and targeted API. NPMap also provides a number of custom components and a look-and-feel that fits in with the graphic identity of the National Park Service.
For more information, including full API documentation, a gallery of maps that have been built with NPMap, and a bunch of more targeted examples for developers, take a look at the NPMap website.
If you're interested in contributing to NPMap, take a look at our contributing guidelines and our conventions document. Both of these are works-in-progress.
This project constitutes a work of the United States Government and is not subject to domestic copyright protection under 17 USC § 105.
However, because the project utilizes code licensed from contributors and other third parties, it is licensed under the MIT License (http://opensource.org/licenses/mit-license.php). Under that license, permission is granted free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the conditions that any appropriate copyright notices and this permission notice are included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.