[OpenLayers-Users] Problem with Vector

[Ilya Braude]

That, and you never add your features to the vector layer.
http://dev.openlayers.org/releases/OpenLayers-2.7/doc/apidocs/files/OpenLayers/Layer/Vector-js.html#OpenLayers.Layer.Vector.addFeatures

So you need to do something like this:
paden.addFeatures([pointFeature])


Ilya

Arnd Wippermann wrote:
>  
> I'm not sure , but map = new OpenLayers.Map("map") creates by default a map
> in EPSG:4326 and not in EPSG:900913. Try without the transformation.
>
> Arnd Wippermann
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
> Auftrag von Stormcrow
> Gesendet: Freitag, 13. Februar 2009 14:58
> An: users at openlayers.org
> Betreff: [OpenLayers-Users] Problem with Vector
>
>
> I'm trying to draw a point on a map, and to draw a line between two points.
> but Somehow, none of both seem to work.
> I have the lon en lat of every point, which I transform so that I can use
> them as x and y for the Point Objects.
> I have been tinkering with it for a few hours and I'm growing tired of
> wasting time on such a seemingly silly matter :D Does anybody have a clue on
> what I'm doing wrong?
>
> and here is the javascript code:
>
>         var map;
>         var drawControls;
>         var center = new OpenLayers.LonLat(4.68887,50.87589);
>         //var center2 = new
> OpenLayers.LonLat(523649.42436625174,6599806.262664414);
>         function init(){
>         map = new OpenLayers.Map("map");              
>
>             var kaart = new OpenLayers.Layer.OSM.Mapnik("Kaart");
>             var paden = new OpenLayers.Layer.Vector("Paden");
>            
>             map.addLayers([kaart, paden]);
>
>             //var pois = new OpenLayers.Layer.Text( "My Points", {
> location:"./textfile.txt", projection: new
> OpenLayers.Projection("EPSG:4326")} );
>             //map.addLayer(pois);
>
>             //map.addControl(new OpenLayers.Control.LayerSwitcher());
>
>             map.setCenter(center.transform(new
> OpenLayers.Projection("EPSG:4326"), new
> OpenLayers.Projection("EPSG:900913")), 14);
>             //map.setCenter(center2, 14);
>            
>             /*
>              * Put point on map
>              */
>            
>             var style_mark = OpenLayers.Util.extend({},
> OpenLayers.Feature.Vector.style['default']);
>             style_mark.graphicWidth = 24;
>             style_mark.graphicXOffset = -(style_mark.graphicWidth/2);  //
> this is the default value
>             style_mark.graphicYOffset = -style_mark.graphicHeight;
>             style_mark.externalGraphic = "Ol_icon_blue_example.png";
>            
>            
>             var lonlat = new OpenLayers.LonLat(4.70452,
> 50.87906).transform(new OpenLayers.Projection("EPSG:4326"), new
> OpenLayers.Projection("EPSG:900913"));
>                         //alert(lonlat.lon + ', ' + lonlat.lat);
>             var point = new OpenLayers.Geometry.Point(lonlat.lon,
> lonlat.lat);
>             var pointFeature = new
> OpenLayers.Feature.Vector(point,null,style_mark);
>
>             /*
>              * Put path on map
>              */
>            
>             drawLine(4.70452,50.87906,4.716585,50.864909);
>         }
>
>         function drawLine(start_x, start_y, finish_x, finish_y) {
>         var pointList = [];
>         var lonlat_start = new OpenLayers.LonLat(start_x,
> start_y).transform(new OpenLayers.Projection("EPSG:4326"), new
> OpenLayers.Projection("EPSG:900913"));
>         var newPoint = new OpenLayers.Geometry.Point(lonlat_start.lon,
> lonlat_start.lat);
>             //alert(newPoint.x + ', ' + newPoint.y);
>             pointList.push(newPoint);
>             var lonlat_finish = new OpenLayers.LonLat(finish_x,
> finish_y).transform(new OpenLayers.Projection("EPSG:4326"), new
> OpenLayers.Projection("EPSG:900913"));
>             var newPoint = new OpenLayers.Geometry.Point(lonlat_finish.lon,
> lonlat_finish.lat);
>             pointList.push(newPoint);
>             var lineFeature = new OpenLayers.Feature.Vector(new
> OpenLayers.Geometry.LineString(pointList));
> --
> View this message in context:
> http://n2.nabble.com/Problem-with-Vector-tp2321331p2321331.html
> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>
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