The first color in the array represents an intensity of 0 and the last color in the array represents the maximum intensity (either automatically determined, or manually set through the maxIntensity option). Colors in between are taken to be evenly spaced. For example, if you have this gradient: ['red', 'green', 'blue'] and the maximum intensity is 10, 'red' means an intensity of 0, 'green' means 5, and 'blue' means 10. If the intensity is 7.5, then it's halfway between green and blue. Typically, you would want the first entry in the gradient to be 'transparent' or some semi-transparent color, otherwise your entire map will be covered up.
Enoch On Saturday, July 7, 2012 3:11:35 AM UTC+10, Hunter McMillen wrote: > > Hello, > > I am working on a project where our team has previously been drawing our > own heat maps, but we stumbled upon the HeatMapLayer in the API the other > day and now it is my task to try and integrate it into our application. I > was wondering if there is any more information about the > HeatMapLayerOptions and the HeatMapLayer itself. I am particularly > interested in the gradient option of the HeatMapLayerOptions; this is the > description that is posted in the api: > > gradient Array<string> The color gradient of the heatmap, specified as > an array of CSS color strings. All CSS3 colors are supported except for > extended named colors > > I was hoping for more explanation as to how to build this array for the > gradient, i.e. how will the color at position X of the array be interpreted > by the HeatMapLayer? I have currently just been trying a bunch of colors in > the array to disastrously colorful results. > > Any help would be appreciated. > > Thanks, > Hunter McMillen > > > > -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-maps-js-api-v3/-/dQXyJaNkSEYJ. To post to this group, send email to google-maps-js-api-v3@googlegroups.com. To unsubscribe from this group, send email to google-maps-js-api-v3+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
