[Users] Some printing questions
gbrun
gbrun at myopera.com
Fri Oct 7 15:09:01 CEST 2011
Hum, looking at your code, it might work! What does it happen with this
code? Vector layers are completely removed from the map, not only from the
legend panel? In this case, you should indeed clone your legend. Then, you
could remove vector layers from this cloned legend. A the end, you can
replace the old legend by the new one in your print function.
I have never gone into this problem, so I have no ready-made solution! In
my app, I have deactivated the "print legend" capabilities when a vector
layer is contained in a map.
Geoffrey
Le Fri, 07 Oct 2011 14:49:34 +0200, Hugo <hfpmartins at gmail.com> a écrit:
> Hello Geoffrey,
>
> Thanks a lot for your comments but my problem is exactly at destroying
> the
> legend printing for the vector layers. I have no idea on how to do this.
> I
> have tried the following but without success:
>
> beforeprint: function(printProv, printMap, printPages, printOpt){
> var includeLegend = Ext.getCmp('includeleg').getValue();
> if (includeLegend == true){
> var legOpt = printOpt.legend;
> var legLayerStore = legOpt.layerStore;
> legLayerStore.each(function(layerRec){
> var layerDef = layerRec.get('layer');
> if (layerDef.ClASS_NAME == 'OpenLayers.Layer.Vector'){
> legLayerStore.remove(layerRec);
> }
> })
> }
> }
>
> So my question would be, how can i tell the printprovider to not print
> the
> legend for this type of layers?
>
> Thanks a lot,
> Hugo
>
> On Fri, Oct 7, 2011 at 8:37 AM, gbrun <gbrun at myopera.com> wrote:
>
>> Hi!
>>
>> I would rather use the "beforeprint" or the "beforeencodelayer" function
>> from the "printProvider" class. This function allows you to change some
>> parameters before layers are printed. So, trough this function, you can
>> test if your map contains vector layers. In this case, you can probably
>> find a way to destroy their relative legend from the print process. You
>> will find below an example:
>>
>> printProvider = new GeoExt.data.PrintProvider({
>> method: 'POST', // 'POST' recommended for production use
>> ('GET' for
>> development)
>> capabilities: printCapabilities, // from the info.json
>> script in the html
>> listeners:{
>> beforeprint: function(){
>> // test each layer
>> // if the layer is vector,
>> remove it
>> from the printed legend
>> }, // or use the "beforeencodelayer" function
>> beforeencodelayer: function (printProvider,
>> layer){
>> // test each layer (easy with the layer
>> parameter provided by this
>> function!)
>> // if the layer is vector,
>> remove it
>> from the printed legend
>> }
>> }
>> });
>>
>> I hope it might help you!
>>
>> Geoffrey
>>
>>
>> Le Thu, 06 Oct 2011 20:17:20 +0200, Hugo <hfpmartins at gmail.com> a écrit:
>>
>> > Hello once again,
>> >
>> > One more question though... If i still want to print legends without
>> wfs
>> > and
>> > vector layers, how can i avoid these layers being passed in the
>> request?
>> >
>> > At the moment i have:
>> > printProvider.print(mapPanel, printPage, {legend: legendPanel});
>> >
>> > So i suppose i have to clone my legendPanel and set some properties
>> for
>> > the
>> > layers i don't want to include in the legend. What would be the
>> approach
>> > to
>> > follow?
>> >
>> > Thanks,
>> > Hugo
>> >
>> > On Thu, Oct 6, 2011 at 2:48 PM, Hugo <hfpmartins at gmail.com> wrote:
>> >
>> >> Hello Chris and Geoffrey,
>> >>
>> >> Thanks a lot for your replies. I will look further into your
>> suggestions
>> >> and come back with feedback.
>> >> Cheers,
>> >>
>> >> Hugo
>> >>
>> >>
>> >> On Tue, Oct 4, 2011 at 8:15 PM, Christian Mayer
>> >> <mayer at terrestris.de>wrote:
>> >>
>> >>> **
>> >>> Hello Hugo,
>> >>>
>> >>> for your second problem you may use the beforeprint event of the
>> >>> PrintProvider class, with the
>> >>> listener arguments:
>> >>>
>> >>> - printProvider -
>> >>> GeoExt.data.PrintProvider<
>> http://geoext.org/lib/GeoExt/data/PrintProvider.html#GeoExt.data.PrintProvider
>> >this
>> >>> PrintProvider
>> >>> - map - OpenLayers.Map the map being printed
>> >>> - pages - Array of
>> >>> GeoExt.data.PrintPage<
>> http://geoext.org/lib/GeoExt/data/PrintPage.html#GeoExt.data.PrintPage>the
>> >>> print pages being printed
>> >>> - options - Object the options to the print command
>> >>>
>> >>> see: http://geoext.org/lib/GeoExt/data/PrintProvider.html
>> >>>
>> >>> Maybe you check and rearrange your map object here.
>> >>>
>> >>> Best regards,
>> >>> Chris
>> >>>
>> >>> Am 04.10.2011 19:58, schrieb gbrun:
>> >>>
>> >>> Hi Hugo,
>> >>>
>> >>> As far as I know, printing vector legend is not supported in the
>> >>> current
>> >>> GeoExt trunk.
>> >>>
>> >>> No idea for your second problem!
>> >>>
>> >>> Geoffrey
>> >>>
>> >>>
>> >>> Le Tue, 04 Oct 2011 17:15:01 +0200, Hugo <hfpmartins at gmail.com>
>> >>> <hfpmartins at gmail.com> a écrit:
>> >>>
>> >>>
>> >>> Hello all,
>> >>>
>> >>> I was able to implement printing using printprovider, printpage and
>> the
>> >>> printextent plugin. However i have some small bugs which, untill
>> now, i
>> >>> wasn't able to solve.
>> >>>
>> >>> The first problem i'm having is related with printing legends when
>> >>> having
>> >>> WFS layers on the map (firebuf is always showing: encFn is
>> undefined).
>> >>> I
>> >>> have checked the encoders part of the prinProvider.js and in fact i
>> >>> don't
>> >>> see WFS there. However there is an encoder for vector layers. So my
>> >>> first
>> >>> question would be is it possible to print legends with WFS?
>> >>>
>> >>> My second problem is related with layer order. When the app is
>> loaded,
>> >>> there
>> >>> are some initial layers that are loaded (WMS, WFS and TileCache). I
>> >>> also
>> >>> have the functionality to allow user to add additional layers
>> returned
>> >>> by
>> >>> WMS capabilities of geoserver. Because i wnated to keep all layers
>> that
>> >>> were
>> >>> initially loaded above all others i'm setting layers ZIndex
>> dynamically
>> >>> in
>> >>> the app. All is working fine when viewing and adding new layers (i
>> >>> always
>> >>> get inital loaded layers on top of the added ones). However, when
>> >>> trying
>> >>> to
>> >>> print, the added layers from wms capabilities are always on the top
>> of
>> >>> all
>> >>> others. More interesting is that, after printing, all layers are
>> >>> magically
>> >>> rearranged and in fact, the added layers become on top of all the
>> >>> others.
>> >>> What property am i missing here???
>> >>>
>> >>> Kind regards,
>> >>> Hugo
>> >>>
>> >>>
>> >>> _______________________________________________
>> >>> Users mailing
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>> >>>
>> >>>
>> >>>
>> >>> --
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>> >>> - Anwendungsentwickler -
>> >>>
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>> >>> 53111 Bonn
>> >>>
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>> >>>
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>> >>>
>> >>>
>> >>>
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>> >>
>> >>
>> >> --
>> >> Hugo Martins
>> >> LabNT - ISEGI UNL
>> >> Campus de Campolide
>> >> 1070-312 Lisboa
>> >> N 38°43'56.84", W 9°9'35.74"
>> >>
>> >
>> >
>> >
>>
>>
>> --
>> --
>> Geoffrey BRUN
>>
>> Étudiant en master SIGMA
>> Stagiaire au PNR du Haut-Languedoc
>>
>> Hameau de Brassac
>> Saint-Pons de Thomières
>> +33 (0) 6 77 74 44 16
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>
>
>
--
--
Geoffrey BRUN
Étudiant en master SIGMA
Stagiaire au PNR du Haut-Languedoc
Hameau de Brassac
Saint-Pons de Thomières
+33 (0) 6 77 74 44 16
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