vhagerty / canvaslayer

A <canvas> map layer for the Google Maps JavaScript API v3 for 2d and WebGL data visualization

CanvasLayer – A Google Maps API utility library

A library for adding a <canvas> layer to a Google Maps JavaScript API v3 map and a small API for efficiently using it to visualize data using the 2d canvas API or WebGL.

Reference documentation

Live Examples

Two simple examples are provided, demonstrating methods to integrate CanvasLayer with the 2d canvas API and WebGL, respectively.

CanvasLayer exposes the raw <canvas> DOM element directly, however, so it can be used with any library that renders to a <canvas> element. See the examples for two possible ways of keeping the rendered content and the underlying map in sync.

• Canvas 2d Example
• WebGL Example

Contributing

Want a change in CanvasLayer? Check out the contributing guide.

License

Copyright 2014 Google Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.