Re: [OpenMap Users] Problem with layers

From: Don Dietrick <dietrick_at_bbn.com>
Date: Thu, 11 Oct 2007 09:11:20 -0400

Hi Saglietti,

No the pan wouldn't be faster turning the layers on and off, the same
work would be done. It might actually appear slower.

If you have a version of the file with less detail, you can use the
ScaleFilterLayer to switch between two or more layers, showing more
detail as you zoom in.

The beta version on the website has new ShapeFile capabilities that
can use the dbf file information to filter out certain features based
on scale, that might help, too. The download page has instructions
for getting the beta.

- Don




On Oct 11, 2007, at 8:51 AM, Saglietti Davide wrote:

> Hi Don (and thanks for your hint!!), there's only a problem. The
> layers are quite big and the "pan" option is slow. Do you think
> using this functions makes the "pan" faster?
>
> Thanks!!!
>
> Davide Saglietti
>
> c/o Telecom Italia Lab
> Via Guglielmo Reiss Romoli 274
> 10148 TORINO
>
> tel: +39 011 228 5523
> e-mail: davide.saglietti_at_guest.telecomitalia.it
> -----Original Message-----
> From: Don Dietrick [mailto:dietrick_at_bbn.com]
> Sent: giovedý 11 ottobre 2007 14.45
> To: Saglietti Davide
> Cc: openmap-users_at_bbn.com
> Subject: Re: [OpenMap Users] Problem with layers
>
> Hi Saglietti,
>
> You can call:
>
> ((LayerHandler)mapHandler.getClass
> (com.bbn.openmap.LayerHandler)).turnLayerOn(visibleFlag,
> shapeLayerEdifici);
>
> where visibleFlag is a boolean for whether you want the layer to be
> on (true) or off (false).
>
> Hope this helps,
>
> - Don
>
> On Oct 11, 2007, at 7:58 AM, Saglietti Davide wrote:
>
>> Dear all, I have a problem with layers. I build mi window with the
>> following code:
>>
>> mapBean = new BufferedLayerMapBean();
>>
>> mapBean.setBorder(border);
>>
>> mapBean.setProjection(proiezione);
>>
>> mapBean.setPreferredSize(new Dimension(this.larghezza,
>> this.altezza));
>>
>> mapBean.setBackground(Color.WHITE);
>>
>>
>>
>> //projectionSupport = new ProjectionSupport(this);
>>
>> mapHandler = new MapHandler();
>>
>>
>>
>> //Preparo ed aggiungo il layer che contiene l'ingombro
>> degli edifici
>>
>> shapeLayerEdifici = new ShapeLayer();
>>
>>
>>
>> String fileEdifici = PropertySet.getProperty(fileConfGPS,
>> "fileEdifici", "to_str");
>>
>>
>>
>> String codiceColoreEdifici = PropertySet.getProperty
>> (fileConfGPS, "ColoreEdifici", "E4D184");
>>
>> String codiceColoreBordoEdifici = PropertySet.getProperty
>> (fileConfGPS, "ColoreBordoEdifici", "000000");
>>
>>
>>
>> Properties shapeLayerProps = new Properties();
>>
>> shapeLayerProps.put("prettyName", "Edifici");
>>
>> shapeLayerProps.put("lineColor", codiceColoreBordoEdifici);
>>
>> shapeLayerProps.put("fillColor", codiceColoreEdifici);
>>
>> shapeLayerProps.put("shapeFile", "mappe/" + fileEdifici +
>> ".shp");
>>
>> shapeLayerProps.put("spatialIndex", "mappe/" + fileEdifici
>> + ".ssx");
>>
>>
>>
>> shapeLayerEdifici.setProperties(shapeLayerProps);
>>
>> shapeLayerEdifici.setVisible(true);
>>
>>
>>
>> //Ora preparo ed aggiungo il layer che contiene il grafo
>> stradale
>>
>> shapeLayerStrade = new ShapeLayer();
>>
>>
>>
>> String fileStrade = PropertySet.getProperty(fileConfGPS,
>> "fileStrade", "mi_str");
>>
>>
>>
>> String codiceColoreStrade = PropertySet.getProperty
>> (fileConfGPS, "coloreMezzaria", "000000");
>>
>>
>>
>> Properties shapeLayerStradeProps = new Properties();
>>
>> shapeLayerStradeProps.put("prettyName", "Stradario");
>>
>> shapeLayerStradeProps.put("lineColor", codiceColoreStrade);
>>
>> shapeLayerStradeProps.put("fillColor", "FFFFFF");
>>
>> shapeLayerStradeProps.put("shapeFile", "mappe/" +
>> fileStrade + ".shp");
>>
>> shapeLayerStradeProps.put("spatialIndex", "mappe/" +
>> fileStrade + ".ssx");
>>
>>
>>
>> shapeLayerStrade.setProperties(shapeLayerStradeProps);
>>
>> shapeLayerStrade.setVisible(true);
>>
>>
>>
>> // Last on top.
>>
>> mapHandler.add(mapBean);
>>
>> mapHandler.add(this);
>>
>> layerHandler = new LayerHandler();
>>
>> layerHandler.addLayer(shapeLayerEdifici);
>>
>> layerHandler.addLayer(shapeLayerStrade);
>>
>> mapHandler.add(layerHandler);
>>
>>
>>
>> double latitudine = PropertySet.getDoubleProperty
>> (fileConfGPS,"latitudine",0.0);
>>
>> double longitudine = PropertySet.getDoubleProperty
>> (fileConfGPS, "longitudine", 0.0);
>>
>>
>>
>> livelloBus = new LivelloBus(latitudine,longitudine,
>> this.principale);
>>
>> mapHandler.add(livelloBus);
>>
>>
>>
>>
>>
>> Then I have to remove and add the layer called "shapeLayerEdifici".
>> How can I do that? I tried with the following code but it removes
>> the layer correctly but it doesn't add the layer (or better, it
>> doesn't repaint the layer)
>>
>>
>>
>> if(this.mapHandler.contains(shapeLayerEdifici)){
>>
>> ((LayerHandler)
>> this.mapHandler.get(LayerHandler.class)).removeLayer
>> (shapeLayerEdifici);
>>
>> }else{
>>
>> ((LayerHandler)this.mapHandler.get(LayerHandler.class)).addLayer
>> (shapeLayerEdifici,0);
>>
>> }
>>
>>
>>
>>
>>
>> Davide Saglietti
>>
>>
>>
>> c/o Telecom Italia Lab
>>
>> Via Guglielmo Reiss Romoli 274
>>
>> 10148 TORINO
>>
>>
>>
>> tel: +39 011 228 5523
>>
>> e-mail: davide.saglietti_at_guest.telecomitalia.it
>>
>>
>>
>>
>
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Don Dietrick, dietrick_at_bbn.com
> BBN Technologies, Cambridge MA
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
>
>
> --
> [To unsubscribe to this list send an email to "majdart_at_bbn.com"
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=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, dietrick_at_bbn.com
BBN Technologies, Cambridge MA
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=



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Received on Thu Oct 11 2007 - 09:11:58 EDT

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