That sounds like a resource problem. Are you making sure that you are aren't trying to use openlayers or any other js before its completely loaded?
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Raasch Sent: Saturday, February 28, 2009 7:15 AM To: [email protected] Subject: Re: [OpenLayers-Users] Looping through unique markers? Odd.... The Firefox error console basically says nothing, whenever Firefox seems to be "trying forever" to open up this page / my script....and Firebug points to that line 224. But if I open ANOTHER TAB and paste the exact same URL into it, the page / map loads and works just fine !! Very strange. -= Dave =- -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Raasch Sent: Friday, February 27, 2009 3:21 PM To: 'Heidt, Christopher M.'; [email protected] Subject: Re: [OpenLayers-Users] Looping through unique markers? OK, thanks to help from Chris....and studying the marker/event related code over at openflights.org, I've managed to get my map to display in Firefox, plus I've got my marker-specific pop-ups generating. And yes, Firefox draws the points and zooms a heckuva lot faster! So, the copy OUTSIDE of our corporate network is working the way I want it to. But when I try to pull up an identical copy saved to a webserver that's WITHIN our corporate network, Firefox seems to be attempting to load the page forever (white page). Firebug (which I really don't know how to use) points to what is apparently line 224 in OpenLayers.js. It does this whether I point this to the OpenLayers.js file over at the OpenLayers site...or if I point it to a copy of that file as saved within its own directory. Line 224: var factory=null;if(typeof GearsFactory!='undefined'){factory=new GearsFactory();}else{try{factory=new ActiveXObject('Gears.Factory');if(factory.getBuildInfo().indexOf('ie_mob ile' )!=-1){factory.privateSetGlobalObject(this);}}catch(e){if((typeof navigator.mimeTypes!='undefined')&&navigator.mimeTypes["application/x-go ogle gears"]){factory=document.createElement("object");factory.style.display= "non e";factory.width=0;factory.height=0;factory.type="application/x-googlege ars" ;document.documentElement.appendChild(factory);}}} I don't suppose anybody might have a clue why this is doing this? Thanks! -= Dave =- -----Original Message----- From: Heidt, Christopher M. [mailto:[email protected]] Sent: Friday, February 27, 2009 12:22 PM To: David Raasch; [email protected] Subject: RE: [OpenLayers-Users] Looping through unique markers? Every browser cept ie7 is throwing "XMLHttpRequest.create is not function" -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Raasch Sent: Friday, February 27, 2009 12:35 PM To: [email protected] Subject: Re: [OpenLayers-Users] Looping through unique markers? OK, I discovered where apparently, this is known to happen when using Vector layers. And I had forgotten to comment-out my Vector layer completely when switching over to using a Marker layer instead. So, I've got that part of it solved. That leaves me with: 1) How to get each marker to have its own unique function? ( I know right now it's just an "alert", but I plan on making that function trigger a pop-up with some marker-specific HTML code in it in the near future). 2) Why do none of the markers (or the circle, for that matter) display in Firefox? Thanks! -= Dave =- -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Raasch Sent: Friday, February 27, 2009 10:44 AM To: [email protected] Subject: Re: [OpenLayers-Users] Looping through unique markers? Hmmm... I just realized that if I go to the map controls and turn off the circle and vector layers, then the events work for all icons, in the sense that they all activate an "alert" pop-up. Of course, the trouble is, all alerts say exactly the same thing, basically showing the text for point #571 only. So, it looks like I've got two problems: Why is it that the Vector and Circle layers seem to be "interfering" with the click events? And apparently I have to figure out how to give each registered event instance a reference to its own unique "evt" function. -= Dave =- -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Raasch Sent: Friday, February 27, 2009 8:13 AM To: [email protected] Subject: [OpenLayers-Users] Looping through unique markers? Greetings All! When I posted to the list last week, I had coded my little app to use FEATURES to draw marker icons and rig-up word-balloon pop-ups whenever they were clicked-on. However, the markers took a very, very long time to load. So, digging further into the archives of this discussion list, I discovered that, although using MARKERS to draw marker icons is considered to be "the old way of doing it", that way is apparently faster. So, I set about commenting-out the feature-adding/drawing lines in my code and inserting some lines that would loop through my array of data, draw each marker, and register an event for that marker. My problem is that I'm only getting the event to work on the FINAL marker in the array. I've posted my files here: http://www.davidraasch.com/ww/map_v4.html If you zoom in over that cluster near Chicago and click, eventually you'll trigger an alert message on the one marker, which is the last one in the array. It will say "You clicked on marker m571". Feel free to do a "view source", but here are the pertinent lines from my code: var markers_layer = new OpenLayers.Layer.Markers( "Markers Layer"); map.addLayer(markers_layer); var xml_points = xmlDoc.documentElement.getElementsByTagName("point"); var m = []; for (var i = 0; i < xml_points.length; i++) { var type = xml_points[i].getAttribute("type"); var thislat = (parseFloat(xml_points[i].getAttribute("lat"))); var thislng = (parseFloat(xml_points[i].getAttribute("lng"))); var html = xml_points[i].getAttribute("html"); {to reduce "noise" here for you, I'm leaving out the if-then statements that determine which exact icon graphic file to use, plus its height and width } // Code to push each point as a MARKER LAYER MARKER var size = new OpenLayers.Size(icon_width,icon_height); var offset = 0; // new OpenLayers.Pixel(-(icon_width/2), -icon_height); var icon = new OpenLayers.Icon(icon_image,size,offset); m[i] = new OpenLayers.Marker((new OpenLayers.LonLat(thislng,thislat).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject())),icon); markers_layer.addMarker(m[i]); m[i].events.register ('click', m[i], function(evt) {alert ('You clicked on marker m'+ i); OpenLayers.Event.stop (evt); }) // alert("i="+ i); } // end of "for i = 0 to all POINTS (Originally, I was using just the variable "m1" to represent the markers, as taken from an example I found somewhere on the openlayers.org site. But then, in debugging it, I switched to using "m" as an array, just to make sure I did understand what we're trying to do here.) I should also mention that, for some reason, the markers don't even appear to load in Firefox! I can only see them in IE. ???? Any thoughts? Thanks! -= Dave =- _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.3/1974 - Release Date: 02/26/09 14:51:00 _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.3/1974 - Release Date: 02/26/09 14:51:00 _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.3/1974 - Release Date: 02/26/09 14:51:00 _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.3/1974 - Release Date: 02/26/09 14:51:00 _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
