On 27 October 2011 11:49, xeus <[email protected]> wrote: > guys hi, > am working on a project (http://m4water.org/m4wmaps/phjs.php) which > requires all markers to appear if they are within an active polygon > and all those outside the polygon not to appear.from the project url > its self evident. thanks.
Cor. What a lot of data you give to the page! I would suggest the best way to deal with this amount of data is only fetch what you need, when you need it. That is: - User clicks on a polygon choice - You clear any existing markers - You change the polygon's colour - You download the data for that polygon (using GDownloadUrl and a server-side script which provides the data) - You display the points That requires either an extra field in your database for the subcounty which you can use to determine which points to select, or a bit of point-in-polygon analysis. The first is definitely a better method of selection. You could use point-in-polygon analysis, though, to determine which subcounty contains a point clicked by a user: then use that as the polygon choice instead of the radio button and proceed as before. 4. -- 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.
