[OpenLayers-Users] draw a line on a map?

Tue Apr 15 15:30:38 EDT 2008

Below is my what I ended up with to draw a line. 

When I pan the map North and South, the line does not stay fixed relative to
the map - can someone please tell me what the issue is here?

<!-- started with http://pgrouting.postlbs.org/wiki/Workshop-DrawRoute -->
<!-- that page was out of date for the latest OpenLayers - see
http://tainavn.blogspot.com/ for changes -->
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <style type="text/css">
        #map {
            width: 762px;
            height: 825px;
            border: 1px solid black;
        }
    </style>
    <script src="http://openlayers.org/api/OpenLayers.js"></script>
    <script
src="http://maps.google.com/maps?file=api&v=2&key=ABQIAAAAIeWnOWItAsdtOsR3kxiUQhTwM0brOpm-All5BF6PoaKBxRWWERSQAgEHUq2jStqEx-kpNgzntg87iw"></script>

    <script type="text/javascript">
		var vector_style = OpenLayers.Util.extend({},
OpenLayers.Feature.Vector.style['default']);
		vector_style.strokeWidth = 3;
		vector_style.strokeColor = "#000000";
		vector_style.fillOpacity = 0;
		vector_style.strokeOpacity = .8;

        function init() {
            var map = new OpenLayers.Map('map');
			var google = new OpenLayers.Layer.Google( "Google", { type: G_NORMAL_MAP
} );
            var highlight = new OpenLayers.Layer.Vector("highlight", {style:
vector_style});

			map.addLayers([google, highlight]);
            var parser = new OpenLayers.Format.WKT();
            var wkt = "LINESTRING(-73.9444 40.75921,-73.96892 40.76396)";
            highlight.addFeatures(parser.read(wkt));
            map.zoomToExtent(new
OpenLayers.Bounds(-74.0472500,40.6795100,-73.9071900,40.8820000));
        }

    </script>
  </head>
  <body onload="init()">
    <div id="map"></div>
  </body>
</html>

geoman wrote:
> 
> There were other issues with my code - I tried to start with an out of
> date example of pgRouting from
> http://pgrouting.postlbs.org/wiki/Workshop-DrawRoute
> 
> Here is a page which details some other changes that are necessary to get
> this code to work against version 2.5
> http://tainavn.blogspot.com/
> 
> 

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