John - I enjoyed watching your informative video. I'm thinking I should 1) Create the data table that I want to display on the heat map. Do it once, so I'm not running SQL queries multiple times. (I'm going to break up the US into grids, and try out different formulas for showing heat).
2) Convert from longitude/latitude to pixels. I found a good explanation of the equation: http://blog.procontentanddesign.com/articles/single/171_Converting_latitude-longitude_into_x-y_cordinates_for_images.htm 3) Draw the pixels on each tile (256x256 png). I'm going to be drawing rectangles and filling them in with a color representing the heat level. I'm going to need to do this for every zoom level, and all of the continental United States. (This is where my program will be slow, possibly extremely slow). 4) Save each image. What is the format for the file name? How do I tell Google what zoom level to use the tile at? -- You received this message because you are subscribed to the Google Groups "Google Maps API V2" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-api?hl=en.
