[OpenLayers-Users] delete feature & vertices - further

[Robert Sanson]

Yes, I actually have select, draw and modify controls:
 
//Select, Draw and Modify controls - these are specific to the layer
controls = {
                select: new OpenLayers.Control.SelectFeature(crops, {callbacks: {'over':feature_info}}),
                dpolygon: new OpenLayers.Control.DrawFeature(crops,OpenLayers.Handler.Polygon),
                modify: new OpenLayers.Control.ModifyFeature(crops),
                delf: new OpenLayers.Control.SelectFeature(crops, {onSelect: function(feature) {crops.destroyFeatures([feature])}})
};
for(var key in controls) {
                map.addControl(controls[key]);
              }
}

//Later on I have a fucntion for activating, deactivating:
function toggleControl(element) {
              mode = element.value;
              OpenLayers.Util.getElement('comments').innerHTML = "Mode:" + mode;
              if ((mode == "select") || (mode == "modify")){
                crop_style.strokeColor = "#0000ff";
              }
              else {
                crop_style.strokeColor = "#ff0000";
              }
              for(key in controls) {
                var control = controls[key];
                if(element.value == key && element.checked) {
                    control.activate();
                } else {
                    control.deactivate();
                }
              }
              crops.onFeatureInsert = function(feature) {
                lastFeature = feature;
                feature.attributes.prop0 = 'new'; //This should be modified to get actual ID
                window.alert("New crop area inserted");
              }
}
 
Thanks,
 
Robert

>>> "Eric Lemoine" <eric.c2c at gmail.com> 16/10/2008 5:48 p.m. >>>
Hi. Do you also have a modify feature control? The select feature and
modify feature controls are known not to play well together. There
already is a ticket about that, and patch attached to it. Eric

2008/10/16, Robert Sanson <SansonR at asurequality.com>:
> I have tried destroyFeatures, removeFeatures and eraseFeatures and they all
> seem to have the same behaviour. The polygon disappears but the vertices
> remain.
>
> var delf =  new OpenLayers.Control.SelectFeature(crops, {onSelect:
> function(feature) {crops.destroyFeatures([feature])}});
> map.addControl(delf);
> delf.activate();
>
> Robert Sanson
>
>>>> Tim Schaub <tschaub at opengeo.org> 5/08/2008 12:13 a.m. >>>
> Hey-
>
> Adorian Ardelean wrote:
>> Hi,
>>
>> After upgrading to OL 2.6, delete feature function does not work
>> correctly:
>> when a polygon or polyline is removed, the lines that define the
>> disappear, but the vertexes not (the vertexes appear as the entity is
>> selected). The code worked flawlessly in previous version. Is something
>> that I have to be aware and/or modify?
>>
>> declaration of control
>> deletefeature: new
>> OpenLayers.Control.SelectFeature(vectors,{onSelect:deleteFeature})
>>
>> delete function
>> function deleteFeature(geometry)
>> {
>>   this.layer.removeFeatures(geometry);
>> }
>>
>> Any hint that may solve this issue is appreciated,
>
> I just tried the following and confirmed that the above works.
>
> 1) open http://openlayers.org/dev/examples/draw-feature.html 
> 2) draw a polygon (note freehand is true here)
> 3) in the firebug console, run this code:
>
> var del = new OpenLayers.Control.SelectFeature(
>      map.layers[3], {
>          onSelect: function(feature) {
>              map.layers[3].removeFeatures([feature]);
>          }
>      }
> );
> map.addControl(del);
> del.activate();
>
> 4) click on your polygon to see it removed
>
> I suspect you really want to be calling destroyFeatures instead of
> removeFeatures - unless you call feature.destroy elsewhere.
>
> Tim
>
>> Adorian
>>
>> --
>> Dr. Adorian Ardelean
>> coordinator of myNature Project
>>
>> proiectul myNature
>> str. Rascoala din 1907 nr 12
>> Timisoara 300523
>> Romania
>>
>> http://mybiosis.info/nature/portal.php?pagename=firstpage [a Romanian
>> biodiversity-database]
>> http://mybiosis.info/nature/portal.php?pagename=adorian [CV]
>>
>>
>> ------------------------------------------------------------------------
>>
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>
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