[OpenLayers-Users] How To: Positionate WGS84 tracks intoGauss-Boaga Map

[Riggi Valerio]

> By the way: How did you manage to show a tif in your browser?
I manage to show the tiff only on Internet Explorer (using 
OpenLayers.Layer.Image), but it is not a problem because it is for a 
univerity exam..
> then you have to add the proj4js javascript library to your application.
Can you show me an example?

*This is the Current Track Layer*:
new OpenLayers.Layer.PointTrack("Tracks", {
                 projection: geographic,
                 strategies: [new OpenLayers.Strategy.Fixed()],
                 protocol: new OpenLayers.Protocol.HTTP({
                     url: "track.kml",
                     format: new OpenLayers.Format.KML({
                         extractTracks: true,
                         extractStyles: true
                     })
                 }),
                 dataFrom: OpenLayers.Layer.PointTrack.TARGET_NODE,
                 styleFrom: OpenLayers.Layer.PointTrack.TARGET_NODE,
                 eventListeners: {
                     "beforefeaturesadded": function(e) {
                         // group the tracks by fid and create one track for
                         // every fid
                         var fid, points = [], feature;
                         for (var i=0, len=e.features.length; i<len; i++) {
                             feature = e.features[i];
                             if ((fid && feature.fid !== fid) || i === 
len-1) {
                                 this.addNodes(points, {silent: true});
                                 points = [];
                             } else {
                                 points.push(feature);
                             }
                             fid = feature.fid;
                         }
                         return false;
                     }
                 }
             })

Many Thank's
Valerio


Il 02/11/2012 22:59, Arnd Wippermann ha scritto:
> if you want reproject feature coordinates from EPSG:4326 (WGS84) to 
> other projection than EPSG:900913 (SphericalMercator),
> then you have to add the proj4js javascript library to your application.
> By the way: How did you manage to show a tif in your browser?
> Arnd
>
> ------------------------------------------------------------------------
> *Von:* openlayers-users-bounces at lists.osgeo.org 
> [mailto:openlayers-users-bounces at lists.osgeo.org] *Im Auftrag von 
> *Riggi Valerio
> *Gesendet:* Freitag, 2. November 2012 21:56
> *An:* openlayers-users at lists.osgeo.org
> *Betreff:* [OpenLayers-Users] How To: Positionate WGS84 tracks 
> intoGauss-Boaga Map
>
> Hi, I'm tring to track some gps data into a Gauss-Boaga map, but I 
> don't manage to put the track on the right place, how can I do?
>
> *This is the Track layer*:
> new OpenLayers.Layer.PointTrack("Tracks", {
>                 projection: geographic,
>                 strategies: [new OpenLayers.Strategy.Fixed()],
>                 protocol: new OpenLayers.Protocol.HTTP({
>                     url: "track.kml",
>                     format: new OpenLayers.Format.KML({
>                         extractTracks: true,
>                         extractStyles: true
>                     })
>                 }),
>                 dataFrom: OpenLayers.Layer.PointTrack.TARGET_NODE,
>                 styleFrom: OpenLayers.Layer.PointTrack.TARGET_NODE,
>                 eventListeners: {
>                     "beforefeaturesadded": function(e) {
>                         // group the tracks by fid and create one 
> track for
>                         // every fid
>                         var fid, points = [], feature;
>                         for (var i=0, len=e.features.length; i<len; i++) {
>                             feature = e.features[i];
>                             if ((fid && feature.fid !== fid) || i === 
> len-1) {
>                                 this.addNodes(points, {silent: true});
>                                 points = [];
>                             } else {
>                                 points.push(feature);
>                             }
>                             fid = feature.fid;
>                         }
>                         return false;
>                     }
>                 }
>             })
>
> *And this is the Gauss-Boaga**Projection*:
>     var options = {
>     isBaseLayer: true,
>     maxResolution: '0.84686783985005',
>     strategies: [new OpenLayers.Strategy.Fixed()],
>     displayInLayerSwitcher: true,
>     size: new OpenLayers.Size(8745, 6696),
>     numZoomLevels: 20
>     };
>
>     var gauss = new OpenLayers.Layer.Image(
>                 'Gauss-Boaga',
>                 'CTR588140.tif',
>                 new OpenLayers.Bounds(2556348.9846319141797721, 
> 4227924.4383069388568401, 
> 2563754.8438914027065039,4233595.0653625745326281),       <?php 
> //left,bottom,right,top ?>
>                 new OpenLayers.Size(8745, 6696),
>                 options
>             );

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