Vector style disapearing on zoom

[Andre Steenveld]

When clicking on a feature it is possible to select it using the penLayers.Control.SelectFeature control. This also changes the style of the vector (in my test case makes it blue instead of orange). But when a vector is selected and you zoom OL the selected style is replaced by the default style again, although it is still selected.

Test case:  http://bonsai.nmpo.nl/experiments/mapclick.html

Tested in IE8, IE7 (emulation), Opera 10, FF 3.5

[ahocevar]

Not sure if this should be classified a bug. Using feature styles is discuouraged in favor of layer level style maps. You can make your application work by making the following changes:

Replace lines 39-41 with

					vectors   = new OpenLayers.Layer.Vector( "Lijntjes", { 
						styleMap: new OpenLayers.StyleMap({
                                                    "default": unselectedStyle,
                                                    "select": selectedStyle
                                                }
					});

Replace lines 285-302 with:

				setTimeout( function( ){
					var bounds     = new OpenLayers.Bounds( );
					
					dojo.forEach( features, function( feature ){
						bounds.extend( feature.geometry.getBounds( ) );
						
						// Is selected stuffs
						feature.fid in selection
							& feature.renderIntent = "select";
					});
					 		
					map.zoomToExtent( bounds );
					vectors.addFeatures( features );
				}, 1 );

Please close this ticket if the proposed solution works for you, otherwise report.

[ahocevar]

You can also try the attached patch. In case we agree that the reported behavior is a bug (well, at least Control.SelectFeature.selectStyle does not work as advertised), that patch could be a starting point for a fix.

[ahocevar]

store original styles

[Andre Steenveld]

Thanks for the quick reply I will try your patch and suggested changes over the weekend. If it turns out being a bug or undesired behavior i can also try to write up a bug fix using your patch as a starting point.

[igrcic]

Hi Andrea,

patch patch doesnt resolve problem when selectStyle is being used. Upon selection feature is rendered with desired selectStyle style, but upon zoom change (redrawing) feature is reneder back again to its style. I have similar problem, will report more when i find out...cheers

[igrcic]

May I propose to change the title to something like : Vector select style lost on zoom