[OpenLayers-Users] HELP! OL 2.13: Google v3 and other layers not zooming "together"
Jeff Heard
jefferson.r.heard at gmail.com
Mon Jun 17 09:54:12 PDT 2013
I'm stuck. My code works with OSM, but I need it to work with Google as
well. The problem is simply that Google v3 and my other layers are not
playing well together at all. They don't zoom together.
In the case of Google satellite, the layer doesn't zoom at all unless I pan
the map. In the case of the others (hybrid, terrain, roads), they zoom,
but the google layer and the other layers on the map zoom up to half a
second apart from each other, and the layer "drifts" between zoom levels
somewhat.
The code that reproduces this is simple and derived directly from the WMS
and Google v3 examples, but they appear not to work together well:
$(function() { var in_options = { internalProjection: new
OpenLayers.Projection('EPSG:900913'), externalProjection: new
OpenLayers.Projection("EPSG:4326") };
var wkt = new OpenLayers.Format.WKT(in_options); var feature =
wkt.read("POLYGON ((-78.9950752916525687 35.5198238058974169,
-78.9950752916525687 36.0750238562958074, -78.2565296570171398
36.0750238562958074, -78.2565296570171398 35.5198238058974169,
-78.9950752916525687 35.5198238058974169))"); var bounds =
feature.geometry.getBounds();
var wms = new OpenLayers.Layer.WMS('Zoning', "/ga_resources/wms/", {
styles: "styles/new-style", layers:
"catalog/states/nc/counties/wake/zoning", transparent: true });
var map = new OpenLayers.Map({ div:'map', projection: new
OpenLayers.Projection("EPSG:900913")});
var layers = [ new OpenLayers.Layer.Google( "Google Physical", {type:
google.maps.MapTypeId.TERRAIN} ), new OpenLayers.Layer.Google( "Google
Streets", // the default {numZoomLevels: 20} ), new
OpenLayers.Layer.Google( "Google
Hybrid", {type: google.maps.MapTypeId.HYBRID, numZoomLevels: 20} ), new
OpenLayers.Layer.Google( "Google Satellite", {type:
google.maps.MapTypeId.SATELLITE, numZoomLevels: 22} ), wms ];
map.addLayers(layers); //map.addLayers([wms]); map.addControl(new
OpenLayers.Control.LayerSwitcher()); map.zoomToExtent(bounds);
});
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