I'm looking for a way to limit number of points retrieved for an area depending on its size. Ie When playing with the zoom on the map I want to be able to only display and retrieved only main points instead of all the points in this area. Is there a simple way to do that actually ? - benoit
On 01.08.2010 10:53, Benoit Chesneau wrote: > I'm looking for a way to limit number of points retrieved for an area > depending on its size. Ie When playing with the zoom on the map I want > to be able to only display and retrieved only main points instead of > all the points in this area. Is there a simple way to do that actually > ? > > - benoit Hi Benoit, there a two ways. Either introducing a "limit" parameter, but that's probably not what you want. It would limit to a arbitrary selection (not the "main points" as you'd like to have it). You probably want clusters. My suggestion is to do it on the client side with OpenLayers' cluster strategy [1][2]. [1] http://openlayers.org/dev/examples/strategy-cluster.html [2] http://openlayers.org/dev/examples/strategy-cluster-threshold.html Cheers, Volker
On Sun, Aug 1, 2010 at 2:17 PM, Volker Mische <volker.mische@...> wrote: > On 01.08.2010 10:53, Benoit Chesneau wrote: >> >> I'm looking for a way to limit number of points retrieved for an area >> depending on its size. Ie When playing with the zoom on the map I want >> to be able to only display and retrieved only main points instead of >> all the points in this area. Is there a simple way to do that actually >> ? >> >> - benoit > > Hi Benoit, > > there a two ways. Either introducing a "limit" parameter, but that's > probably not what you want. It would limit to a arbitrary selection (not the > "main points" as you'd like to have it). > You probably want clusters. My suggestion is to do it on the client side > with OpenLayers' cluster strategy [1][2]. > > [1] http://openlayers.org/dev/examples/strategy-cluster.html > [2] http://openlayers.org/dev/examples/strategy-cluster-threshold.html > > Cheers, > Volker > This solution doesn't work when you have a lot of points though. Do you plan to add such things to geocouch ? - benoit(Continue reading)
On 01.08.2010 17:24, Benoit Chesneau wrote: > On Sun, Aug 1, 2010 at 2:17 PM, Volker Mische<volker.mische@...> wrote: >> On 01.08.2010 10:53, Benoit Chesneau wrote: >>> >>> I'm looking for a way to limit number of points retrieved for an area >>> depending on its size. Ie When playing with the zoom on the map I want >>> to be able to only display and retrieved only main points instead of >>> all the points in this area. Is there a simple way to do that actually >>> ? >>> >>> - benoit >> >> Hi Benoit, >> >> there a two ways. Either introducing a "limit" parameter, but that's >> probably not what you want. It would limit to a arbitrary selection (not the >> "main points" as you'd like to have it). >> You probably want clusters. My suggestion is to do it on the client side >> with OpenLayers' cluster strategy [1][2]. >> >> [1] http://openlayers.org/dev/examples/strategy-cluster.html >> [2] http://openlayers.org/dev/examples/strategy-cluster-threshold.html >> >> Cheers, >> Volker >> > This solution doesn't work when you have a lot of points though. Do > you plan to add such things to geocouch ? >(Continue reading)
On Aug 1, 2010, at 1:43 PM, Volker Mische wrote: > On 01.08.2010 17:24, Benoit Chesneau wrote: >> On Sun, Aug 1, 2010 at 2:17 PM, Volker Mische<volker.mische@...> wrote: >>> On 01.08.2010 10:53, Benoit Chesneau wrote: >>>> >>>> I'm looking for a way to limit number of points retrieved for an area >>>> depending on its size. Ie When playing with the zoom on the map I want >>>> to be able to only display and retrieved only main points instead of >>>> all the points in this area. Is there a simple way to do that actually >>>> ? >>>> >>>> - benoit >>> >>> Hi Benoit, >>> >>> there a two ways. Either introducing a "limit" parameter, but that's >>> probably not what you want. It would limit to a arbitrary selection (not the >>> "main points" as you'd like to have it). >>> You probably want clusters. My suggestion is to do it on the client side >>> with OpenLayers' cluster strategy [1][2]. >>> >>> [1] http://openlayers.org/dev/examples/strategy-cluster.html >>> [2] http://openlayers.org/dev/examples/strategy-cluster-threshold.html >>> >>> Cheers, >>> Volker >>>(Continue reading)
On 01.08.2010 22:48, J Chris Anderson wrote: > > On Aug 1, 2010, at 1:43 PM, Volker Mische wrote: > >> On 01.08.2010 17:24, Benoit Chesneau wrote: >>> On Sun, Aug 1, 2010 at 2:17 PM, Volker Mische<volker.mische@...> wrote: >>>> On 01.08.2010 10:53, Benoit Chesneau wrote: >>>>> >>>>> I'm looking for a way to limit number of points retrieved for an area >>>>> depending on its size. Ie When playing with the zoom on the map I want >>>>> to be able to only display and retrieved only main points instead of >>>>> all the points in this area. Is there a simple way to do that actually >>>>> ? >>>>> >>>>> - benoit >>>> >>>> Hi Benoit, >>>> >>>> there a two ways. Either introducing a "limit" parameter, but that's >>>> probably not what you want. It would limit to a arbitrary selection (not the >>>> "main points" as you'd like to have it). >>>> You probably want clusters. My suggestion is to do it on the client side >>>> with OpenLayers' cluster strategy [1][2]. >>>> >>>> [1] http://openlayers.org/dev/examples/strategy-cluster.html >>>> [2] http://openlayers.org/dev/examples/strategy-cluster-threshold.html >>>> >>>> Cheers, >>>> Volker(Continue reading)
On Sun, Aug 1, 2010 at 13:54, Volker Mische <volker.mische@...> wrote: > On 01.08.2010 22:48, J Chris Anderson wrote: >> >> On Aug 1, 2010, at 1:43 PM, Volker Mische wrote: >> >>> On 01.08.2010 17:24, Benoit Chesneau wrote: >>>> >>>> On Sun, Aug 1, 2010 at 2:17 PM, Volker Mische<volker.mische@...> >>>> wrote: >>>>> >>>>> On 01.08.2010 10:53, Benoit Chesneau wrote: >>>>>> >>>>>> I'm looking for a way to limit number of points retrieved for an area >>>>>> depending on its size. Ie When playing with the zoom on the map I want >>>>>> to be able to only display and retrieved only main points instead of >>>>>> all the points in this area. Is there a simple way to do that actually >>>>>> ? >>>>>> >>>>>> - benoit >>>>> >>>>> Hi Benoit, >>>>> >>>>> there a two ways. Either introducing a "limit" parameter, but that's >>>>> probably not what you want. It would limit to a arbitrary selection >>>>> (not the >>>>> "main points" as you'd like to have it). >>>>> You probably want clusters. My suggestion is to do it on the client >>>>> side >>>>> with OpenLayers' cluster strategy [1][2]. >>>>>(Continue reading)
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