[OpenLayers-Users] delete feature & vertexes

[Adorian Ardelean]

Hi,

Thank you for your message. Yes it works, but...

I have discovered that this problem is in relation with the modify control I
use within the same application. If I rem line for declaring modify control
the delete function behaves OK. If I include it, then after delete the
vertexes remain. If more than one polygon on map then the vertexes disappear
from previous deleted polygon and appear where the last deleted polygon
resided.... and so on. On some clicks succession a polygon may be redrawn
(with lines and fill style), but no delete or drag or edit may be performed.


  var modifyOptions = {
                onModificationStart: function(feature) {
                    OpenLayers.Console.log("start modifying", feature.id);
                },
                onModification: function(feature) {
                    OpenLayers.Console.log("modified", feature.id);
                },
                onModificationEnd: function(feature) {
                    OpenLayers.Console.log("end modifying", feature.id);
                },
                onDelete: function(feature) {
                   OpenLayers.Console.log("delete", feature.id);
                }
            };

 controls = {
                ...
                modify: new OpenLayers.Control.ModifyFeature(vectors,
modifyOptions),
                deletefeature: new OpenLayers.Control.SelectFeature(vectors,
{onSelect:deleteFeature}),
                ...
            };


function deleteFeature(feature)
{
  this.layer.destroyFeatures([feature]);
  //this.layer.removeFeatures(feature);
}

Any hints how to make delete and modify "cooperate"?

All the best,
Adorian

On Mon, Aug 4, 2008 at 2:13 PM, Tim Schaub <tschaub at opengeo.org> wrote:

> 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]
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Users mailing list
> > Users at openlayers.org
> > http://openlayers.org/mailman/listinfo/users
>
> _______________________________________________
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>



-- 
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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