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2011-01-30T16:32:37.550
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2011-01-30T16:32:37.550
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<p>You can extend OpenLayers to support this operation. I make this using OpenLayers native functions. Try this, maybe you must fix and customize this code.</p> <pre><code>// The first object is instanced using data given from gmaps var objBound1 = new OpenLayers.Bounds(); objBound1.extend(new OpenLayers.LonLat(2,2)); objBound1.extend(new OpenLayers.LonLat(8,8)); // The second object is instanced using data given from gmaps var objBound2 = new OpenLayers.Bounds(); objBound2.extend(new OpenLayers.LonLat(5,5)); objBound2.extend(new OpenLayers.LonLat(10,10)); // Extract limits from our objects var arrBound1 = objBound1.toArray(); var arrBound2 = objBound2.toArray(); // Determine an virtual bound. It must contain our two bounds var intMinLeft = arrBound1.left < arrBound2.left ? arrBound1.left : arrBound2.left; var intMinTop = arrBound1.top < arrBound2.top ? arrBound1.top : arrBound2.top; var intMaxRight = arrBound1.right > arrBound2.right ? arrBound1.right : arrBound2.right; var intMaxBottom = arrBound1.bottom > arrBound2.bottom ? arrBound1.bottom : arrBound2.bottom; // Search all points of virtual bound, storing the points contained in bound1 or bound2 var objBoundResult = new OpenLayers.Bounds(); for(var intI = intMinLeft; intI < intMaxRight; intI++) { for(var intJ = intMinTop; intJ < intMaxBottom; intJ++) { if(objBound1.containsLonLat(new OpenLayers.LonLat(intI, intJ)) || objBound2.containsLonLat(new OpenLayers.LonLat(intI, intJ))) { objBoundResult.add(intI, intJ); } } } // objBoundResult is what you want </code></pre>
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1. POgeospatial queries in javascript
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1. USGustavo Costa De Oliveira
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1. COI still have to try this, sorry for delay
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