[OpenLayers-Users] geojson - additional questions

[Jan Tappenbeck]

Hi !

thanks - and i read something about geojson at this weekend and i have 
some additional questions:

* if a bbox is define - is it possible to zoom extant to this by ol ? how ?


is it possible to iterate through the geojson-data -> get a list of all 
name-properties

is it correct to define a name-property like this:

...
{ "type": "Feature",
        "geometry": {
          "type": "Polygon",
          "coordinates": [
            [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
              [100.0, 1.0], [100.0, 0.0] ]
            ]
        },
        "properties": {
          "name": "[the name]",   <<<<<<<<<<<<---------------
          "prop1": {"this": "that"}
          }
        }
....


regards Jan :-)


Am 20.04.2012 13:05, schrieb Paul Meems (Top-X):
> Hi Jan,
>
> I'm using a filter for this:
>
>    filter: new OpenLayers.Filter.Comparison({
>            type: OpenLayers.Filter.Comparison.EQUAL_TO,
>            property:"_adresid",
>            value:"-1"})
>
> and some javascript
>
> function changeFilter(newValue)
> {
>    wfsLayer.destroyFeatures();
>    document.getElementById('progress').innerHTML ="..";
>    wfsLayer.filter = new OpenLayers.Filter.Comparison({
>                            type: OpenLayers.Filter.Comparison.EQUAL_TO,
>                            property:"_adresid",
>                            value: newValue});
>    wfsLayer.refresh({force: true});
> }
>
>
> Regards
>
>
> Paul Meems
> Organizing the International Open Source GIS conference in The Netherlands:
> http://www.mapwindow.org/conference/2012/
>
> Op 20 april 2012 11:33 schreef Jan Tappenbeck
> <osm at tappenbeck.net
> <mailto:osm at tappenbeck.net>> het volgende:
>
>     hi !
>
>     i want to make a map with a function to show streets via a search
>     dialog.
>
>     when a user select a way-name it should be show via a openlayer-vector.
>
>     i only found examples to define elements by the geojson-format and
>     show all elements in a bundle - but i only want to show the element
>     with the id=xxxx.
>
>     did anyone now an expample for this situation ?
>
>     regards Jan :-)
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