/**
* @param node
* @return minimum x coordinate
* @throws GeometryException
*/
public static String getXMin(Node node) throws GeometryException {
if (node == null) {
return "";
}
Geometry geometry = GMLGeometryAdapter.wrap((Element) node, null);
Envelope envelope = geometry.getEnvelope();
return Double.toString(envelope.getMin().getX());
}
/**
* @param node
* @return minimum z coordinate
* @throws GeometryException
*/
public static String getZMax(Node node) throws GeometryException {
if (node == null) {
return "";
}
Geometry geometry = GMLGeometryAdapter.wrap((Element) node, null);
Envelope envelope = geometry.getEnvelope();
if (geometry.getCoordinateDimension() > 2) {
return "";
}
return Double.toString(envelope.getMax().getZ());
}
/**
* @param pointNode the point node from which the x or y value will be extracted. For example,
* node is <gml:Point srsName="EPSG:31466"> <gml:coordinates cs="," decimal="." ts="
* ">0.0,0.0</gml:coordinates> </gml:Point>
* @param coordIndex the coordenate index indicated whether to extract from x (index = 0)
* otherwise from y
* @return the String representation of the x or y value
* @throws GeometryException
*/
private static String getPointXorY(Node pointNode, int coordIndex) throws GeometryException {
String value = "";
if (pointNode != null) {
Geometry geometry = GMLGeometryAdapter.wrap((Element) pointNode, null);
if (geometry instanceof Point) {
Point p = (Point) geometry;
double d = coordIndex == 0 ? p.getX() : p.getY();
value = Double.toString(d);
}
}
return value;
}
/**
* returns the minimum coordinate of the envelope of the geometry encoded by the passed node as a
* double array
*
* @param node
* @return the minimum coordinate of the envelope of the geometry encoded by the passed node as a
* double array
* @throws GeometryException
*/
public static String getMaxAsArray(Node node) throws GeometryException {
if (node == null) {
return "";
}
Geometry geometry = GMLGeometryAdapter.wrap((Element) node, null);
if (geometry instanceof Point) {
return "";
}
Envelope env = geometry.getEnvelope();
StringBuffer sb = new StringBuffer(100);
Position pos = env.getMax();
int dim = pos.getCoordinateDimension();
double[] d = pos.getAsArray();
for (int i = 0; i < dim - 1; i++) {
sb.append(Double.toString(d[i])).append(' ');
}
sb.append(Double.toString(d[dim - 1]));
return sb.toString();
}