I am not sure what the Geo Fence table actually is but either way to find if a location is inside or outside your fence it is simple if you have a closed polygon. You are looking to performa point-in-polygon test where an even result means the location is outside and an odd result means it is inside. Have a look at http://en.wikipedia.org/wiki/Point_in_polygon and in particular the ray-casting method. I have used this before and it is fast.
Cheers, Simon On 4 June 2013 19:58, <rai...@ozemail.com.au> wrote: > I have the Tracking Server with listener set up so the listener captures > the data (long / lat) sent from the mobile tracking devices to the server, > which is then stored into an sql table**** > > ** ** > > I have the Bing Maps API set up so the locations stored in the above > database table correctly display on the bing map**** > > ** ** > > The challenge is trying to figure out how to create Geo Fence > functionality combining SQL 2008, using Bing Maps API and using CF > application to manage and display the Geo Fences **** > > ** ** > > I am wanting to be able to create circular zones so the co ordinates are > saved in the geo fence table assigned to a specific device id, **** > > ** ** > > Once the geo fences are created and stored in the geo fence table each new > location sent to the tracking server then needs to be validated against > existing geo fences to determine if the new location is inside or outside > of geo fences listed in the geo fence table**** > > ** ** > > If anyone can assist to direct me to a resource or example code that deal > with the above I would appreciate the advise **** > > ** ** > > ** ** > > Kind Regards**** > > ** ** > > Claude Raiola**** > > -- > You received this message because you are subscribed to the Google Groups > "cfaussie" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cfaussie+unsubscr...@googlegroups.com. > To post to this group, send email to cfaussie@googlegroups.com. > Visit this group at http://groups.google.com/group/cfaussie?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- Cheers Simon Haddon Woman loves feeling danger and speed. That is why woman wants man. They get a speed rush that is the most dangerous of all. -- You received this message because you are subscribed to the Google Groups "cfaussie" group. To unsubscribe from this group and stop receiving emails from it, send an email to cfaussie+unsubscr...@googlegroups.com. To post to this group, send email to cfaussie@googlegroups.com. Visit this group at http://groups.google.com/group/cfaussie?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
