flex 中GML转换
package org.openscales.core.format
{
import flash.utils.getQualifiedClassName;
import flash.xml.XMLNode;
import org.openscales.core.Util;
import org.openscales.core.feature.Feature;
import org.openscales.core.geometry.Collection;
import org.openscales.core.geometry.LineString;
import org.openscales.core.geometry.LinearRing;
import org.openscales.core.geometry.MultiLineString;
import org.openscales.core.geometry.MultiPoint;
import org.openscales.core.geometry.MultiPolygon;
import org.openscales.core.geometry.Point;
import org.openscales.core.geometry.Polygon;
import org.openscales.proj4as.Proj4as;
import org.openscales.proj4as.ProjPoint;
import org.openscales.proj4as.ProjProjection;
import org.openscales.core.feature.Feature;
import org.openscales.core.feature.PointFeature;
import org.openscales.core.feature.MultiPointFeature;
import org.openscales.core.feature.LineStringFeature;
import org.openscales.core.feature.MultiLineStringFeature;
import org.openscales.core.feature.PolygonFeature;
import org.openscales.core.feature.MultiPolygonFeature;
import org.openscales.core.Trace;
/**
* Read/Write GML. Supports the GML simple features profile.
*/
public class GMLFormat extends Format
{
protected var _featureNS:String = "http://openscales.org/OpenScales";
protected var _featureName:String = "featureMember";
protected var _featurePrefix:String = "OpenScales";
protected var _layerName:String = "features";
protected var _geometryName:String = "geometry";
protected var _collectionName:String = "FeatureCollection";
protected var _gmlns:String = "http://www.opengis.net/gml";
protected var _gmlprefix:String = "gml";
protected var _wfsns:String = "http://www.opengis.net
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