[Cartoweb-users] how to change layer selection by code in a plugIn
Oliver Christen
oliver.christen at camptocamp.com
Thu Aug 30 03:40:24 EDT 2007
see comments below
> Hi Oliver,
> I've tried the code you sent, and I've added a simple echo (or printf) to
> see, on the fly, the results of the getValue instruction, well it seems
> that
> the filterGetRequest()
> has not ever been called.
> So I've copied the same code in the filterPostRequest(), well, the
> function
> is called and the echo returns the variable layer as empty (!).
you will only have something in the layers variable in filterPostRequest if
the form was sent via POST
try to do do a print_r($request) in filterPostRequest and filterGetRequest
so you know what kind of values are returned and how
there must be something in there.
regards
Oliver
>
> I performed a lot of test by starting from different initial conditions:
> all layers unselected, other layers selected, all layer selected and so
> on.
> No way.
>
>
> It's weird to me, becouse this feature is very useful, so I think that
> there
> is something wrong in my operations but I can't see the way.
>
> what do you suggest ?
>
> thanks a lot for your attention and best regards, home my feedback could
> be
> useful for you.
>
> Giu
>
>
> --------- Original Message --------
> Da: Oliver Christen <oliver.christen at camptocamp.com>
> To: cartoweb-users at lists.maptools.org <cartoweb-users at lists.maptools.org>
> Oggetto: Re: [Cartoweb-users] how to change layer selection by code in a
> plugIn
> Data: 29/08/07 10:20
>
> >
>>
>>
>> Hi Giuseppe
>>
>> After looking at the code in ClientLayers, it seems layer_select can only
> be
>> used via GET and not POST, so this wont work that way.
>> When sending the form via POST, the array list is passed in parameter so
> you
>> should be able to add the layer wanted via filterPostRequest
>> Try something like that:
>>
>> public function filterPostRequest(FilterRequestModifier $request) {
>> $layerList = $request->getValue('layers');
>> $newLayers =
>> array('CAR_Group','VIN_layer_1','VIN_layer_2','VIN_layer_2');
>> $newLayerList = array_merge($layerList, $newLayers);
>> $request->setValue('layers', $newLayerList);
>> }
>>
>> By the way, 'recenter_bbox' and 'recenter_scale' are exclusive, its
>> either
>
>> one or another but not both. 'recenter_bbox' calculate automaticaly the
>> scale based on the bbox.
>>
>> And show_crosshair will NOT be triggered when using a 'recenter_bbox',
> only
>> with 'recenter_scale' or recenter_x/recenter_y
>>
>> Hope this cover all the issues here.
>>
>> regards
>> Oliver
>>
>>
>> >
>> >
>> > Hi Oliver,
>> > I red the doc, but I was not able to get my target.
>> > I performed some tests amd I send you my code. Only the recenter option
>> > works well.
>> > My plugIn let the user to choose a name of a building which has been
>> > selected by a quary and linked to recenterBox, so when the user click
>> > on
>> > one
>> > item of the displayed list of buildings the map is recentered on it.
>> > I'm working on Cartoweb 3.2 in Win env.I tried to put the values in a
>> > direct
>> > mode both with one-quote and double quotes and as int value (for the
>> > crosshair 1 or '1' or "1" , but nothing ... in $sel_layers there is the
>> > real
>> > name of the layer and not the label. I tried both with a group name and
>> > with
>> > a list of elementary layers .
>> > Any suggestion/correction ?
>> >
>> > thanks in advance and best regards
>> >
>> > Giu
>> >
>> > class myNewPlugin extends ClientPlugin implements Sessionable,
>> > GuiProvider, FilterProvider
>> > {
>> > ...
>> >
>> > public function filterPostRequest(FilterRequestModifier $request) {
>> >
>> > ...
>> > $recenterBbox= "$x1, $y1, $x2, $y2";
>> > $cross_ok ="1";
>> > $sel_layers="CAR_Group,VIN_layer_1,VIN_layer_2,VIN_layer_2";
>> >
>> > $request->setValue('show_crosshair', $cross_ok);
>> > $request->setValue('recenter_scale', "2000");
>> > $request->setValue('recenter_bbox', $recenterBbox);
>> > $request->setValue('layer_select',$sel_layers);
>> >
>> >
>> > }
>> >
>> > ...
>> >
>> >
>> > }
>> >
>> > --------- Original Message --------
>> > Da: Oliver Christen <oliver.christen at camptocamp.com>
>> > To: cartoweb-users at lists.maptools.org
> <cartoweb-users at lists.maptools.org>
>> > Oggetto: Re: [Cartoweb-users] how to change layer selection by code in
> a
>> > plugIn
>> > Data: 27/08/07 11:24
>> >
>> > >
>> >> >
>> >> >
>> >> > Hi
>> >> >
>> >> > maybe you can use the filter layer_select and layer_unselect
>> >> > see
>> >> >
>> >>
>> >
> http://www.cartoweb.org/doc_head/docbook/xhtml/dev.newplugin.html#dev.newplugin.special.filters
>> >> >
>> >> > regards
>> >> > Oliver
>> >> >
>> >> >
>> >> >
>> >> > > Hi,
>> >> > > I'd like to know if there is a way that forces a layer to be
>> >> > > hidden
>
>> >> > > or
>> >> > > displayed by code ie: I wrote a plugin which returns a list of
>> > buildings
>> >> > > which have all a common item,this item is also represented by a
>> >> > > layer.
>> >> Now
>> >> > > I'd like that on quering into my db, if there are buildings which
>> >> matches
>> >> > > an
>> >> > > item, I can set a layer to be displayed.
>> >> > > Thanks in advance
>> >> > > Giu
>> >> > > --
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>> >> > >
>> >> > >
>> >> > > _______________________________________________
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>> >> > >
>> >> >
>> >> >
>> >> >
>> >> >
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>>
>>
>>
>>
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