Hi,
In my case the baselayer could be switch on/off.
I switch the baselayer to have a better performance with many layers over
the map.
So, my question remains.
Is that a reasonable change in the Openlayers code?
Thanks,
T Vieira
bwoodall wrote:
>
> Howdy Tiago
>
> On Fri, 2009-03-13 at 05:36 -0700, T. Vieira wrote:
>> Hi,
>>
>> Using OL2.7 - IE6.
>>
>> I'm using tilecache for baselayer, and when i deactivate the checkBox
>> from
>> that layer, visibility turns off.
>> But, when i do a PAN or ZOOM the request to tilecache server is still
>> executed.
>>
>> I don't know if my code have a bug in some place, or if is a bug from
>> Openlayers.
>
> I don't think of this as a bug in either, since the baselayer is the
> foundation of your map from which you can add other items (overlays,
> freatures, ...) to highlight additional information or focus the viewer
> to a particular area on the baselayer and I think the baselayer was
> never meant to be turned off.
>
>>
>> I made a change to get it work correctly:
>
> Isn't OpenSource Cool!
>
>>
>> **** OpenLayers/Tile/image.js ****
>>
>> draw: function() {
>> + var drawTile = false;
>>
>> if (this.layer != this.layer.map.baseLayer &&
>> this.layer.reproject)
>> {
>> this.bounds = this.getBoundsFromBaseLayer(this.position);
>> }
>>
>> + if (this.layer.visibility != 0)
>> - var drawTile = OpenLayers.Tile.prototype.draw.apply(this,
>> arguments);
>> + drawTile = OpenLayers.Tile.prototype.draw.apply(this,
>> arguments);
>>
>> When the layer visibility is 0, the drawTile variable mantains false, so
>> the
>> request isn't executed.
>>
>> Can you test it some way?
>>
>> Thanks,
>> Tiago Vieira
>
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