Question

I’m using Google maps in my academic project,from few weeks onwards a message in displaying on map whenever I do certain operations on map like zoom-in,zoom-out.What might be the reason?Is I need configure any thing in my code.

You can see that message in above image,message is titled by ‘Map Data’.We are using open layers maps in our project and coding language is PHP.

Answer 1

I read here that one cause might be some element covering up the map data copyright, but I found some complaints of the same notice popping up without mentioning this.

The most promising option I found is a page saying the solution is to upgrade to 2.12 or if you cannot, then apply a patch after including the OpenLayers.js

<script src="http://maps.google.com/maps/api/js?v=3.5&amp;sensor=false"></script>
    <script src="../lib/OpenLayers.js"></script>
    <script>
    OpenLayers.Layer.Google.v3.repositionMapElements = function() {
        // This is the first time any Google layer in this mapObject has been
        // made visible.  The mapObject needs to know the container size.
        google.maps.event.trigger(this.mapObject, "resize");

        var div = this.mapObject.getDiv().firstChild;
        if (!div || div.childNodes.length < 3) {
            this.repositionTimer = window.setTimeout(
                OpenLayers.Function.bind(this.repositionMapElements, this),
                250
            );
            return false;
        }

        var cache = OpenLayers.Layer.Google.cache[this.map.id];
        var container = this.map.viewPortDiv;

        // move the ToS and branding stuff up to the container div
        // depends on value of zIndex, which is not robust
        for (var i=div.children.length-1; i>=0; --i) {
            if (div.children[i].style.zIndex == 1000001) {
                var termsOfUse = div.children[i];
                container.appendChild(termsOfUse);
                termsOfUse.style.zIndex = "1100";
                termsOfUse.style.bottom = "";
                termsOfUse.className = "olLayerGoogleCopyright olLayerGoogleV3";
                termsOfUse.style.display = "";
                cache.termsOfUse = termsOfUse;
            }
            if (div.children[i].style.zIndex == 1000000) {
                var poweredBy = div.children[i];
                container.appendChild(poweredBy);
                poweredBy.style.zIndex = "1100";
                poweredBy.style.bottom = "";
                poweredBy.className = "olLayerGooglePoweredBy olLayerGoogleV3 gmnoprint";
                poweredBy.style.display = "";
                cache.poweredBy = poweredBy;
            }
            if (div.children[i].style.zIndex == 10000002) {
                container.appendChild(div.children[i]);
            }
        }

        this.setGMapVisibility(this.visibility);
    };
    </script>
    <script src="google-v3.js"></script>