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Touch pan with Google is not working (iPad) #1198

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carypeebles opened this issue Dec 10, 2013 · 2 comments
Open

Touch pan with Google is not working (iPad) #1198

carypeebles opened this issue Dec 10, 2013 · 2 comments

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@carypeebles
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I am having trouble with the touch navigation when using a Google base map. The issues seem to be reproducible in the online examples - I've tried http://openlayers.org/dev/examples/google.html and http://openlayers.org/dev/examples/all-overlays-google.html and both exhibit jerky pan behavior on my iPad.
The samples are using "Release 2.14 dev", my app is using"Release 2.13".
@carypeebles
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Has anyone else experienced this issue? I've tried 2.12 and 2.13 in my app with Google v3 release.

@carypeebles
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This simple html page illustrates the issue I am having - I have been using an iPad with Safari and Chrome


<!DOCTYPE html> 
<html>
<head profile="http://www.w3.org/2005/10/profile">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <script src="http://maps.google.com/maps/api/js?v=3&amp;sensor=false"></script>
    <script type="text/javascript" src="http://dev.openlayers.org/releases/OpenLayers-2.13.1/lib/OpenLayers.js"></script>
    <script type="text/javascript">
        var map = null;
        var points = [
                    new OpenLayers.Geometry.Point(-122.395089, 37.793819),
                    new OpenLayers.Geometry.Point(-122.395095, 37.793821),
                    new OpenLayers.Geometry.Point(-122.3933, 37.795),
                    new OpenLayers.Geometry.Point(-122.396622, 37.793745),
                    new OpenLayers.Geometry.Point(-122.393936, 37.792514),
                    new OpenLayers.Geometry.Point(-122.39735999999999, 37.794042999999995),
                    new OpenLayers.Geometry.Point(-122.39399999999999, 37.79215),
                    new OpenLayers.Geometry.Point(-122.393643, 37.792128),
                    new OpenLayers.Geometry.Point(-122.39433899999999, 37.791882),
                    new OpenLayers.Geometry.Point(-122.392848, 37.792265),
                    new OpenLayers.Geometry.Point(-122.3977, 37.7932),
                    new OpenLayers.Geometry.Point(-122.398062, 37.793949),
                    new OpenLayers.Geometry.Point(-122.393614, 37.791753),
                    new OpenLayers.Geometry.Point(-122.39400699999999, 37.791528),
                    new OpenLayers.Geometry.Point(-122.39845199999999, 37.794412),
                    new OpenLayers.Geometry.Point(-122.39339, 37.791575),
                    new OpenLayers.Geometry.Point(-122.39809899999999, 37.792949),
                    new OpenLayers.Geometry.Point(-122.398479, 37.793703),
                    new OpenLayers.Geometry.Point(-122.398585, 37.794138),
                    new OpenLayers.Geometry.Point(-122.39860499999999, 37.793819),
                    new OpenLayers.Geometry.Point(-122.399149, 37.788103)
                ];
                
        function addMarkers(asVector) {
            var icon = new OpenLayers.Icon('http://www.openlayers.org/dev/img/marker.png', new OpenLayers.Size(21, 25), null, 
                function(size) { return new OpenLayers.Pixel(-(size.w/2), -size.h); });
        
            var layername = "Markers";
            var srs = "EPSG:4326";
            var dataProjection = new OpenLayers.Projection(srs); 
            var mapProjection = map.projection;
            
            var layer;
            if (asVector) {
                layer = new OpenLayers.Layer.Vector(layername, {projection: mapProjection}); 
            } else {
                layer = new OpenLayers.Layer.Markers(layername);
            }
            map.addLayer(layer);
            for (var i = 0; i < points.length; i++) {
                var point = points[i].transform(dataProjection, mapProjection);
                if (asVector) {
                    layer.addFeatures(new OpenLayers.Feature.Vector(point));
                } else {
                    layer.addMarker(new OpenLayers.Marker(new OpenLayers.LonLat(point.x, point.y),icon.clone()));
                }
            }
            map.zoomToExtent(layer.getDataExtent(), true);
        };
        function init() {
            map = new OpenLayers.Map('map', {
                projection: 'EPSG:3857',
                layers: [new OpenLayers.Layer.Google(
                    "Google Streets",
                    {numZoomLevels: 20}
                    )],
                center: new OpenLayers.LonLat(-122.395, 37.79406).transform('EPSG:4326', 'EPSG:3857'),
                zoom: 18
            });
            map.addControl(new OpenLayers.Control.LayerSwitcher());
            //for (var i=map.layers.length-1; i>=0; --i) {
            //  map.layers[i].animationEnabled = this.checked;
            //}
            addMarkers(false);
        };
    </script>
</head>
<body onload="init()">
<div id="map" style="width: 768px;height: 480px;border: 1px solid #ccc;">
</div>
</body>
</html>

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@carypeebles