A Google Maps JavaScript API v3 library to render marker clusters as pie-charts categorized on the markers titles.
This library is derived from the Google Maps JavaScript API utility libraries on Google Code.
You can see an example of how to use the library. (Don't forget to include you API Key otherwise it won't work) here.
The sample data used in the example is taken from here.
Feel free to contribute and/or suggest improvements.
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.