How to create map overlays on google map?

Google Fusion Tables: How can I create an intensity map based on how many instances are within a custom boundary?

• Specifically, I'm trying to map out the "crankiest" neighborhoods in New York based on a large spreadsheet of loud music/party complaints. Does anyone know how I could do this? The complaints all have lat longs listed with them, but not the neighborhood. I merged the csv with the neighborhood boundaries using the boroughs columns. Please help! Here are links to the three tables: Neighborhood Shapefiles https://www.google.com/fusiontables/DataSource?docid=1WVRYYpRLWj8Hv4_... Party Complaints https://www.google.com/fusiontables/DataSource?docid=1qokhS7x4A8NKsx3... Merged Table https://www.google.com/fusiontables/DataSource?docid=1FBgDJT7917W2QnJ...

• Answer:

  I would recommend looking at a script called "http://Heatmap.Py". Look it up on Google and you should find it. The script generates heatmaps and takes as input a plain list of lat/longs. The output is usually a PNG or KML file that you can import into whatever solution you are working with. You might be able to code up a batch process with it to generate different heatmaps for different boundaries.