/**
* Returns the nth geometry of a geometry collection, or the geometry if the input is not a
* collection.
*
* @param node xml element containing gml object(s)
* @param number integer number as the index of nth geometry
* @return geometry as a gml element
* @throws QueryException query exception
*/
@Deterministic
public ANode geometryN(final ANode node, final Int number) throws QueryException {
final Geometry geo = checkGeo(node);
final long n = number.itr();
if (n < 1 || n > geo.getNumGeometries()) throw GeoErrors.outOfRangeIdx(number);
return gmlWriter(geo.getGeometryN((int) n - 1));
}
/**
* Returns a boolean value that shows if whether relationships between the boundaries, interiors
* and exteriors of two geometries match the pattern specified in intersection-matrix-pattern.
*
* @param node1 xml element containing gml object(s)
* @param node2 xml element containing gml object(s)
* @param intersectionMatrix intersection matrix for two geometries
* @return boolean value
* @throws QueryException query exception
*/
@Deterministic
public Bln relate(final ANode node1, final ANode node2, final Str intersectionMatrix)
throws QueryException {
final Geometry geo1 = checkGeo(node1);
final Geometry geo2 = checkGeo(node2);
return Bln.get(geo1.relate(geo2, intersectionMatrix.toJava()));
}
/**
* Returns the z-coordinate value for point.
*
* @param node xml element containing gml object(s)
* @return z double value
* @throws QueryException query exception
*/
@Deterministic
public Dbl z(final ANode node) throws QueryException {
final Geometry geo = geo(node, Q_GML_POINT);
if (geo == null && checkGeo(node) != null)
throw GeoErrors.geoType(node.qname().local(), "Line");
return Dbl.get(geo.getCoordinate().z);
}
/**
* Returns the nth point of a line.
*
* @param node xml element containing gml object(s)
* @param number index of i-th point
* @return n-th point as a gml element
* @throws QueryException query exception
*/
@Deterministic
public ANode pointN(final ANode node, final Int number) throws QueryException {
final Geometry geo = geo(node, Q_GML_LINEARRING, Q_GML_LINESTRING);
if (geo == null && checkGeo(node) != null)
throw GeoErrors.geoType(node.qname().local(), "Line");
final int max = geo.getNumPoints();
final long n = number.itr();
if (n < 1 || n > max) throw GeoErrors.outOfRangeIdx(number);
return gmlWriter(((LineString) geo).getPointN((int) n - 1));
}
private String convertToWKT(Geometry g, boolean isFormatted) {
if (g == null) return "";
if (!isFormatted) return g.toString();
WKTWriter writer = new WKTWriter();
writer.setFormatted(isFormatted);
writer.setMaxCoordinatesPerLine(5);
return writer.write(g);
}
/**
* Returns a geometric object that represents the Point set symmetric difference of two
* geometries.
*
* @param node1 xml element containing gml object(s)
* @param node2 xml element containing gml object(s)
* @return symmetric difference geometry as a gml element
* @throws QueryException query exception
*/
@Deterministic
public ANode symDifference(final ANode node1, final ANode node2) throws QueryException {
final Geometry geo1 = checkGeo(node1);
final Geometry geo2 = checkGeo(node2);
return gmlWriter(geo1.symDifference(geo2));
}
/**
* Returns a geometric object representing the Point set intersection of two geometries.
*
* @param node1 xml element containing gml object(s)
* @param node2 xml element containing gml object(s)
* @return intersection geometry as a gml element
* @throws QueryException query exception
*/
@Deterministic
public ANode intersection(final ANode node1, final ANode node2) throws QueryException {
final Geometry geo1 = checkGeo(node1);
final Geometry geo2 = checkGeo(node2);
return gmlWriter(geo1.intersection(geo2));
}
/**
* Returns the shortest distance in the units of the spatial reference system of geometry, between
* the geometries. The distance is the distance between a point on each of the geometries.
*
* @param node1 xml element containing gml object(s)
* @param node2 xml element containing gml object(s)
* @return distance double value
* @throws QueryException query exception
*/
@Deterministic
public Dbl distance(final ANode node1, final ANode node2) throws QueryException {
final Geometry geo1 = checkGeo(node1);
final Geometry geo2 = checkGeo(node2);
return Dbl.get(geo1.distance(geo2));
}
/**
* Returns a boolean value that shows if this geometry overlaps the specified geometry.
*
* @param node1 xml element containing gml object(s)
* @param node2 xml element containing gml object(s)
* @return boolean value
* @throws QueryException query exception
*/
@Deterministic
public Bln overlaps(final ANode node1, final ANode node2) throws QueryException {
final Geometry geo1 = checkGeo(node1);
final Geometry geo2 = checkGeo(node2);
return Bln.get(geo1.overlaps(geo2));
}