Re: [OpenLayers-Users] Find out about the geometrytype of a layer
Hi Alexandre,
the error is here: line 513 of vector.js:
!(feature.geometry instanceof this.geometryType)) { .
feature.geometry is undefined, this.geometryType is
OpenLayers.Geometry.MultiLineString
When I check in line 488 of vector.js addFeatures: function(features,
options) { ... there is one object in the array with correct geometryType.
Anything else for me to check?
Thanks, Barbara
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[OpenLayers-Users] LayerSwitcher in OpenLayers2.9.RC2 in wrong place on the map
Hi! I have been wondering how come my layer switcher appears in left top corner of the map. It does not look good. Here is screen: http://img171.imageshack.us/img171/303/errir1.png When I open it it looks like this: http://img512.imageshack.us/img512/994/error2l.png In version 2.8 of Openlayers I did not have this kind of problems. I had my layer switcher in the right top corner and everything was working fine... Is there a way to fix this?? Regards, Poul -- View this message in context: http://n2.nabble.com/LayerSwitcher-in-OpenLayers2-9-RC2-in-wrong-place-on-the-map-tp4906606p4906606.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Adding features from WFS to Vector layer question
Hi,
I'm trying to add some features from 2 WFS different layers to the same Vector
Layer in Openlayers. If I don't ask for any attribute apart from the geometry,
the features are added without any problem. But in my case I want the features
to be added with some attributes that may differ. For example, I ask the
following:
wfs:GetFeature
wfs:Query typeName=RecintosSigpac
PropertyNamemsGeometry/PropertyName
PropertyNamePROVINCIA/PropertyName
PropertyNameMUNICIPIO/PropertyName
PropertyNamePOLIGONO/PropertyName
PropertyNamePARCELA/PropertyName
PropertyNameRECINTO/PropertyNameogc:Filter... FILTER HERE .../ogc:Filter
/wfs:Query
wfs:Query typeName=ParcelasSigpac
PropertyNamemsGeometry/PropertyName
PropertyNamePROVINCIA/PropertyName
PropertyNameMUNICIPIO/PropertyName
PropertyNamePOLIGONO/PropertyName
PropertyNamePARCELA/PropertyNameogc:Filter... FILTER HERE
.../ogc:Filter
/wfs:Query
/wfs:GetFeature
They differ in one attribute, but I want them to be in the same layer. I add
the fetures using GML:
var fetures = new OpenLayers.Format.GML.v3({featureType: layerName,featureNS:
http://mapserver.gis.umn.edu/mapserver; }).read(data);
vectorLayer.addFeatures(fetures);
I loop through a layerName array to add the features, but I get an error:
obj.attributes is undefined
[Break on this error]
obj.features.push(feature);},_geometr...Members;}else{name=featureMember;}
It is caused because I'm processing features with different attributes?? How
can I solve it??
Thanks.
Un saludo,
··
David Alda Fernández de Lezea
Lurralde eta Biodibertsitate Saila / Dpto. de Territorio y Biodiversidad
IKT
Granja Modelo s/n · 01192 · Arkaute (Araba)
··
Tlfnos.: 945-00-32-95 Fax: 945-00.32.90
··
email: da...@ikt.esweb: www.ikt.es
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Re: [OpenLayers-Users] LayerSwitcher in OpenLayers2.9.RC2 in wrong place on the map
Did you update your theme directory? The css has changed (things have been moved in to css from the LayerSwitcher). Best regards, Bart Hi! I have been wondering how come my layer switcher appears in left top corner of the map. It does not look good. Here is screen: http://img171.imageshack.us/img171/303/errir1.png When I open it it looks like this: http://img512.imageshack.us/img512/994/error2l.png In version 2.8 of Openlayers I did not have this kind of problems. I had my layer switcher in the right top corner and everything was working fine... Is there a way to fix this?? Regards, Poul -- View this message in context: http://n2.nabble.com/LayerSwitcher-in-OpenLayers2-9-RC2-in-wrong-place-on-the-map-tp4906606p4906606.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] LayerSwitcher in OpenLayers2.9.RC2 in wrong place on the map
Thanks a lot for your help Bart! That was it. I copied only the OpenLayers.js file without the theme folder. Now everything is working fine. Regards, Poul -- View this message in context: http://n2.nabble.com/LayerSwitcher-in-OpenLayers2-9-RC2-in-wrong-place-on-the-map-tp4906606p4906776.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Expanding the hitbox for selectFeature?
Hi Phil, You could make the features larger by changing the 'strokeWidth' property of your features. Alexandre Phil Scadden wrote: I am finding that you need incredibly accurate clicking to selectfeature (especially when geometry is a line). Is there away of expanding the hitbox? Notice: This email and any attachments are confidential. If received in error please destroy and immediately notify us. Do not copy or disclose the contents. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- Alexandre Dubé Mapgears www.mapgears.com ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Custom Toolbar
OpenLayers 2.9 RC 2
I'm attempting to create a custom tool and toolbar class but I seem to be
running into an issue with the custom toolbar.
Here is my code below
ZoomToAgreementExtent = OpenLayers.Class(OpenLayers.Control, {
type: OpenLayers.Control.TYPE_BUTTON,
trigger: function() {
if (this.map) {
alert('this is a test');
}
},
CLASS_NAME: ZoomToAgreementExtent
});
ApplicationToolbar = OpenLayers.Class(OpenLayers.Control.Panel, {
initialize: function(options) {
OpenLayers.Control.Panel.prototype.initialize.apply(this,
[options]);
this.addControls([
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.ZoomBox(),
new ZoomToAgreementExtent()
]);
},
draw: function() {
var div = OpenLayers.Control.Panel.prototype.draw.apply(this,
arguments);
this.activateControl(this.controls[0]);
return div;
}
CLASS_NAME: ApplicationToolbar
});
Then on my map init method I do this:
var appToolbar = new ApplicationToolbar();
map.addControl(appToolbar);
The ZoomToAgreementExtent control seems to work fine but when I try and add
the ApplicationToolbar (which I based on the NavToolbar) I get the following
error in FireBug:
this.initialize is undefined in OpenLayers-2.9-rc2.js on line 117.
I assume that there isn't a bug in the Open Layers library but instead there
is something wrong with my code.
Any ideas?
Thanks
Andrew
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[OpenLayers-Users] Displaying Base layers by Zoom Scale
Hi, I am developing an openlayers application with data from geoserver. I have 5 wms baselayers which I would like to display base on a users zoom scale instead of having the layerSwitcher added to the map control. How can it be achieved without the layerswitcher? Thanks in advance. -- View this message in context: http://n2.nabble.com/Displaying-Base-layers-by-Zoom-Scale-tp4907408p4907408.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Displaying Base layers by Zoom Scale
Anthony, Take a look at the minScale/maxScale and/or minResolution/maxResolution properties of the Layer object. This might be enough to accomplish what you're looking for. See also [1] for an example of use (isn't really used in the example, but looking at the code source will show how to define them). Alexandre Odeneho wrote: Hi, I am developing an openlayers application with data from geoserver. I have 5 wms baselayers which I would like to display base on a users zoom scale instead of having the layerSwitcher added to the map control. How can it be achieved without the layerswitcher? Thanks in advance. -- Alexandre Dubé Mapgears www.mapgears.com ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] How to print map area with openlayers
The easiest thing is to print the page containing the map (or a simpler print page containing the map). For other approaches, this may help: http://trac.openlayers.org/wiki/Printing -- View this message in context: http://n2.nabble.com/How-to-print-map-area-with-openlayers-tp4901023p4907550.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] How to print map area with openlayers
rakesh.modi1585 wrote: Hi, I want to print map area (WMS Layer) with overlay vector layers. Is it possible in openlayers, if it then how it is done? Thanks Rakesh Check out the link that Lisa said in her e-mail. We resorted to a server side stitching because we couldn't rely on the differences between browsers. Some browsers wouldn't be able to print all the layers and we didn't have much success with printing vector. By going server side, we can control all that (including vectors) and provide options for output (JPG, PDF, etc..) Shawn -- View this message in context: http://n2.nabble.com/How-to-print-map-area-with-openlayers-tp4901023p4907889.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] drawFeature control needs two clicks...?
Dear all
I have a situation that I can't get to the bottom of, and I'm hoping that
someone can help me understand it. The following code is intended to add a
new circle each time the user clicks a map, which it does.
My problem is that two clicks are needed for any circle to be drawn: it is
as if the first click activates the drawFeature control (and also removes
any existing circle) but does not draw anything, and then a second click
draws the feature. So far as I can understand two clicks should not be
needed..? Any suggestions what I am doing wrong please?
Chris
circle1Layer = new OpenLayers.Layer.Vector(Circle 1, {
styleMap : circle1Style
});
map.addLayer(circle1Layer);
map.addControl(new OpenLayers.Control.MousePosition());
function circle1FeatureAdded(feature){
if (circle1.activate=true){
circle1.deactivate();
}
}
var circle1Options = {sides:20, radius: Radius, persist: true};
circle1 = new OpenLayers.Control.DrawFeature(circle1Layer,
OpenLayers.Handler.RegularPolygon,
{handlerOptions: circle1Options}
);
map.addControl(circle1);
circle1.activate();
circle1.events.register('featureadded', circle1,
circle1FeatureAdded);
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[OpenLayers-Users] Load es.js
Hello list, I didn't found an example. How can I load es.js and get messages in spanish by dafault? Thank's in advance Antoni Vidal Unitat d'Aplicacions SIG-WEB Institut Cartogràfic de Catalunya http://mercuri.icc.cat/website/mob_nf/mob1/mob2/inici2.htm?CONSULTA=Institut%20Cartogr%25E0fic%20de%20CatalunyaXYADDRESS=429486:4580392 Parc de Montjuïc, E-08038 Barcelona Tel. (+34) 93 567 15 00 (ext. 3228) www.icc.cat http://www.icc.cat/ ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Duplicate labels display in ArcGIS Server REST map service when viewing through OpenLayers API
I've created a very simple ArcGIS Server dynamic map service (REST) for a single polygon layer with about 10 features. When I view the service in my OpenLayers demo app, the labels are duplicating -- that is, I'm seeing about 5 labels per feature. Not sure why. Has anyone seen this before and better yet, does anyone have know how to prevent this label duplication? I only want one label per feature to display. Thanks much, Shira ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Adding a custom marker on map by clicking.
Assalam o alaikum dear all. I have recently started coding in openlayers 2.8, my starting point was the code generated by map tiler tool. Now I want to add further functionality by clicking on the map, and adding a custom marker. By custom I mean to specify following: 1. Specify marker's location. 2. Custom Marker icon 3. Ability to show markers text without clicking on it at all times. 4. Ability to specify markers zoom levels between which it should be visible. 5. Ability to hide and show whole markers layer. 6. Ability to export the marker layer to kml. I am sorry if I am asking too much, but I have seen almost all openlayers marker example codes and none can do even the most basic thing like clicking anywhere on map to add a marker. Also I can't seem to find any code in 2.8 examples to show text labels with or without markers. Any small code snipets will be extremely welcome. Thanks. Ghulam Subhani ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] drawFeature control needs two clicks...?
Chris,
Chris Green wrote:
I have a situation that I can’t get to the bottom of, and I’m hoping
that someone can help me understand it.
circle1 = new OpenLayers.Control.DrawFeature(circle1Layer,
OpenLayers.Handler.RegularPolygon, {handlerOptions: circle1Options});
Use OpenLayers.Handler.Point instead of
OpenLayers.Handler.RegularPolygon to draw points on single click.
Regards,
--
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Mapgears
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Re: [OpenLayers-Users] Load es.js
Antoni, 1. Add the lang file script src=$PATH_TO_OL/lib/OpenLayers/Lang/es.js/script 2. On init (body onload or whatever you load first) OpenLayers.Lang.setCode(es); That should do it. Regards, Alexandre Vidal, Antoni wrote: Hello list, I didn’t found an example. How can I load es.js and get messages in spanish by dafault? Thank’s in advance *Antoni Vidal* Unitat d'Aplicacions SIG-WEB Institut Cartogràfic de Catalunya http://mercuri.icc.cat/website/mob_nf/mob1/mob2/inici2.htm?CONSULTA=Institut%20Cartogr%25E0fic%20de%20CatalunyaXYADDRESS=429486:4580392 Parc de Montjuïc, E-08038 Barcelona Tel. (+34) 93 567 15 00 (ext. 3228) www.icc.cat http://www.icc.cat/ ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- Alexandre Dubé Mapgears www.mapgears.com ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Adding a custom marker on map by clicking.
Hi Ghulam, Subhani Minhas wrote: 1. Specify marker's location. 2. Custom Marker icon Here's a really good example for you to start from : http://dev.openlayers.org/releases/OpenLayers-2.8/examples/styles-unique.html In it, you'll be able to find what you need for 1) and 2). Please note that the markers in the example are OpenLayers.Feature.Vector object, and not OpenLayers.Marker objects. 3. Ability to show markers text without clicking on it at all times. You'll be able to use a SelectFeature control with 'hover': true property in order to have your text (or popup) open when the feature is hovered. See this example. http://dev.openlayers.org/releases/OpenLayers-2.8/examples/highlight-feature.html 4. Ability to specify markers zoom levels between which it should be visible. That's should be your hardest point to accomplish in my opinion. You should finish by this one. I'm not sure what could be the best way to accomplish this. I'll let others response. 5. Ability to hide and show whole markers layer. Can be done with the layerSwitcher : http://dev.openlayers.org/releases/OpenLayers-2.8/examples/layerswitcher.html 6. Ability to export the marker layer to kml. Here's an demo doing it (last button in toolbar, you need to draw a feature first) http://dev.geoext.org/sandbox/redlining/ux/FeatureEditing/examples/ControlerOnlyExample.html Here's the lib use for kml exportation http://dev.geoext.org/sandbox/cmoullet/ux/LayerManager/ux/data/Export.js Hope this helps, -- Alexandre Dubé Mapgears www.mapgears.com ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] drawFeature control needs two clicks...?
Hi Alex
Thanks for the suggestion, it works!
ButI can't see how to change the radius of the point that is drawn - is
it possible?
Chris
-Original Message-
From: Alexandre Dube [mailto:ad...@mapgears.com]
Sent: 15 April 2010 18:05
To: chris.gr...@ibstv.co.uk
Cc: users@openlayers.org
Subject: Re: [OpenLayers-Users] drawFeature control needs two clicks...?
Chris,
Chris Green wrote:
I have a situation that I cant get to the bottom of, and Im hoping
that someone can help me understand it.
circle1 = new OpenLayers.Control.DrawFeature(circle1Layer,
OpenLayers.Handler.RegularPolygon, {handlerOptions: circle1Options});
Use OpenLayers.Handler.Point instead of
OpenLayers.Handler.RegularPolygon to draw points on single click.
Regards,
--
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Mapgears
www.mapgears.com
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Re: [OpenLayers-Users] drawFeature control needs two clicks...?
Chris Green wrote: Hi Alex Thanks for the suggestion, it works! ButI can't see how to change the radius of the point that is drawn - is it possible? Yes. Take a look at the following file at line 392 : http://trac.openlayers.org/browser/tags/openlayers/release-2.9-rc2/lib/OpenLayers/Feature/Vector.js There you have the default symbolizers for features drawn. You overwrite these by using the OpenLayers.Util.applyDefaults method, see in this acticle (the first gray box, below *Basics*) What you're looking for is 'pointRadius'. Kind regards, -- Alexandre Dubé Mapgears www.mapgears.com ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] drawFeature control needs two clicks...?
Alexandre Dube wrote: see in this acticle (the first gray box, below *Basics*) http://trac.openlayers.org/wiki/Styles -- Alexandre Dubé Mapgears www.mapgears.com ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Ajax request filter
The filter I've setup should return 6 records. The same request sans filter
returns 10 records.
Is my date string correct? What am I doing wrong?
Thanks
var currentTime = new Date(); //from 01-01-1970 12:00 AM
var dd = currentTime.getDay();
var mm = currentTime.getMonth();
var yy = currentTime.getYear();
var today = mm+/+dd+/+yy;
myFilter = new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.GREATER_THAN_OR_EQUAL_TO,
property: end_date,
value: today
});
//Get users
var thelayer = bm_user;
var myrequest =
http://xx..edu:8080/geoserver/wfs?outputformat=jsonrequest=GetFeatureversion=1.1.0typeName=Biofuels:+thelayer+extractfields:truefilter=+myFilter;
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[OpenLayers-Users] Suggestion for hosting platform?
I'm building a site that involves a couple of editable vector layers drawn on top of a landbase. In development, I've been working with a publicly accessible WMS, but that won't fly for our production system. I need more control of what features will be displayed at which resolutions. So I need to set up a landbase server, that I can access from OpenLayers. We're planning to start with the Tiger data. The question is how best to host it. Our previous systems used KaMap layers, creating tiles with MapServer, from shape files. The performance has only been barely acceptable, and the configuration has been a constant headache. So, I'm looking for alternatives. It looks to me like we've three decisions to make. 1st, the access method - the OpenLayers layer type. WMS? WFS? WMS-T? KaMap, again? We'd like to have some ability to query features, which we don't have with KaMap, but not at the cost of performance. 2nd, the data store. Mapserver and shape files have been fairly slow, for us, so we're thinking about using a GIS database. PostGIS is free, we have a license that would allow us to use Microsoft's new GIS capabilities in SqlServer. 3rd, the actual serving application. KaMap acts as its own server. If we decide on WMS, using a PostGIS database, what Open Source options are there for WMS server applications? I have a vague understanding that MapServer can be configured to run as a WMS server. How well does it work? How does it perform? Does PostGIS have a WMS-serving capability? SqlServer? Discussion? ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Suggestion for hosting platform?
Hey Jeff, I've had great performance with a GeoServer/OpenLayers setup. GeoServer will offer you several configuration options- so you can tweak your environment to match your needs as they change. GeoServer supports shapefiles, postgis, and sql server- as well as several other data stores and will render WMS, WFS, WCS, KML, and plenty of other formats. PostGIS will not serve WMS directly (to the best of my knowledge)- but will allow you to extract GML and KML vector data from your SQL queries. Feel free to check out the Open GeoPortal application I developed using a fairly straightforward GeoServer/OpenLayers setup: http://www.opengeohost.com/maps/stlawrence/ http://www.opengeohost.com/maps/stlawrence/ This application has several commercial basemap layers and all the overlays are single tile WMS layers served up by GeoServer from a shapefile store. The search functionality is accomplished via WFS and CQL queries. Everything is wrapped up in an ExtJS layout- providing plenty of screen real estate for the various tools and tabs. Best of luck with your application and I hope I was able to help answer some of your questions! BRYAN -- View this message in context: http://n2.nabble.com/Suggestion-for-hosting-platform-tp4910033p4910105.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Problem (and possible solution) for Openlayers + IE8 + local files.
I have been having trouble with access denied using openlayers on a
USB stick (off internet) application when the browser is IE8. Hassles
with ajax (possibly) and with XMLHttpRequest. I noticed that ajax via
JQuery has no problem so started comparing code.
It would seem that the in IE7 8, the xmlhttprequest is implemented, but
it doesnt work for local files. You
have to use the ActiveXObject (XMLHTTP) instead. JQuery seems to do this
thanks a look at
window.document.protocol == file:.
It seems to fix this you need to change in ajax.js
getTransport: function() {
return OpenLayers.Util.Try(
function() {return new XMLHttpRequest();},
function() {return new ActiveXObject('Msxml2.XMLHTTP');},
function() {return new ActiveXObject('Microsoft.XMLHTTP');}
) || false;
},
(I did this successfully) but also
XMLHttpRequest.js
function cXMLHttpRequest() {
this._object= oXMLHttpRequest ? new oXMLHttpRequest : new
window.ActiveXObject('Microsoft.XMLHTTP');
};
I am less sure of exactly what this code is trying to achieve so
reluctant to fiddle. Would someone like to give this a go?
--
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Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
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[OpenLayers-Users] Positional Accuracy of Drawn Overlays
Hello OpenLayers Users, We plan to use OpenLayers for a project that requires accurate positioning of overlay objects drawn on an overlay layer above the map layer. We plan to use an updated base map layer such as one of the GSHHS tile sets. One of the stakeholders in this project has asked me to determine how accurate OpenLayers will be for this purpose. In other words, if the user draws a rectangle that precisely bounds the Isle of Wight with our product, how far off is it likely to be in the real world? Is the coincidence between map layers uniform? The first time I tried to answer this question, I responded in terms of the map layer's accuracy. It was pointed out to me that this is not the full answer. It doesn't matter how accurate the map layer is, if the points that I have selected on my overlay layer are off in relation to the map. I have read several postings here that relate to how OpenLayers handles map projections, and see that it uses Proj.4 to perform its geospatial math. Unfortunately, I don't know enough yet to ask the right question, or where to look in the code. Has anyone come across this issue already? I would like to verify that OpenLayers handles the intersections between the map layer and layers above well enough for our needs, so that we can move forward to implementation. Kind thanks for any pointers! Scott C. Cary, NC USA -- View this message in context: http://n2.nabble.com/Positional-Accuracy-of-Drawn-Overlays-tp4910847p4910847.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Further to openlayers, IE8 and local files.
If I change XMLHttpRequest to
function cXMLHttpRequest() {
if (window.location.protocol == file:) {
this._object= new
window.ActiveXObject('Microsoft.XMLHTTP');
} else {
this._object= oXMLHttpRequest ? new oXMLHttpRequest :
new window.ActiveXObject('Microsoft.XMLHTTP');
}
};
then the code works in IE8. (Obviously doesnt in FF - I am hoping
someone better in JS can fix this up).
The fix need to work for requests are going to both web and file (could
have layers from both). jQuery's structure seems good for this.
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