Package org.h2gis.utilities.jts_utils

Class GeometryFeatureUtils

java.lang.Object

org.h2gis.utilities.jts_utils.GeometryFeatureUtils

public class GeometryFeatureUtils
extends Object

An utility class to convert a query in a JSON list

Author:

Erwan Bocher, CNRS 2023

Constructor Summary

Constructors

Constructor	Description
GeometryFeatureUtils()

Method Summary

Modifier and Type	Method	Description
static LinkedHashMap	getProperties(ResultSet resultSet, Collection<String> columns)	Convert the resulSet values to JSON list
static ArrayList	toGeojsonCoordinate(org.locationtech.jts.geom.Coordinate coord, int maxdecimaldigits)
static ArrayList	toGeojsonCoordinates(org.locationtech.jts.geom.Coordinate[] coords, int maxdecimaldigits)
static LinkedHashMap	toGeojsonGeometryCollection(org.locationtech.jts.geom.GeometryCollection geometryCollection, int maxdecimaldigits)
static LinkedHashMap	toGeojsonLineString(org.locationtech.jts.geom.LineString lineString, int maxdecimaldigits)
static LinkedHashMap	toGeojsonMultiLineString(org.locationtech.jts.geom.MultiLineString multiLineString, int maxdecimaldigits)
static LinkedHashMap	toGeojsonMultiPoint(org.locationtech.jts.geom.MultiPoint multiPoint, int maxdecimaldigits)
static LinkedHashMap	toGeojsonMultiPolygon(org.locationtech.jts.geom.MultiPolygon multiPolygon, int maxdecimaldigits)
static LinkedHashMap	toGeojsonPolygon(org.locationtech.jts.geom.Polygon polygon, int maxdecimaldigits)
static ArrayList	toList(Connection connection, String query)
static ArrayList<LinkedHashMap>	toList(Connection connection, String query, int maxdecimaldigits)
static ArrayList<LinkedHashMap>	toList(ResultSet resultSet, int maxdecimaldigits)	Convert a ResulSet to a JSON list
static LinkedHashMap	toMap(org.locationtech.jts.geom.Geometry geom)	Convert a Geometry to a JSON map
static LinkedHashMap	toMap(org.locationtech.jts.geom.Geometry geom, int maxdecimaldigits)	Convert a Geometry to a JSON map
static LinkedHashMap	toPoint(org.locationtech.jts.geom.Point point, int maxdecimaldigits)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GeometryFeatureUtils

public GeometryFeatureUtils()

Method Detail

toList

public static ArrayList toList(Connection connection,
                               String query)
                        throws SQLException

Parameters:

connection - to the database

query - the select query to execute

Returns:

a JSON list

Throws:

SQLException

toList

public static ArrayList<LinkedHashMap> toList(Connection connection,
                                              String query,
                                              int maxdecimaldigits)
                                       throws SQLException

Parameters:

connection - to the database

query - the select query to execute

maxdecimaldigits - argument may be used to reduce the maximum number of decimal places

Returns:

a JSON list

Throws:

SQLException

toList

public static ArrayList<LinkedHashMap> toList(ResultSet resultSet,
                                              int maxdecimaldigits)
                                       throws Exception

Convert a ResulSet to a JSON list

Parameters:

resultSet - the resulset

maxdecimaldigits - argument may be used to reduce the maximum number of decimal places

Returns:

a JSON list

Throws:

Exception

getProperties

public static LinkedHashMap getProperties(ResultSet resultSet,
                                          Collection<String> columns)
                                   throws Exception

Convert the resulSet values to JSON list

Parameters:

resultSet - values

columns - column names

Returns:

Throws:

Exception

toMap

public static LinkedHashMap toMap(org.locationtech.jts.geom.Geometry geom)

Convert a Geometry to a JSON map

Parameters:

geom - the geometry

Returns:

toMap

public static LinkedHashMap toMap(org.locationtech.jts.geom.Geometry geom,
                                  int maxdecimaldigits)

Convert a Geometry to a JSON map

Parameters:

geom - the geometry

maxdecimaldigits - argument may be used to reduce the maximum number of decimal places

Returns:

a map

toPoint

public static LinkedHashMap toPoint(org.locationtech.jts.geom.Point point,
                                    int maxdecimaldigits)

toGeojsonLineString

public static LinkedHashMap toGeojsonLineString(org.locationtech.jts.geom.LineString lineString,
                                                int maxdecimaldigits)

toGeojsonPolygon

public static LinkedHashMap toGeojsonPolygon(org.locationtech.jts.geom.Polygon polygon,
                                             int maxdecimaldigits)

toGeojsonMultiPoint

public static LinkedHashMap toGeojsonMultiPoint(org.locationtech.jts.geom.MultiPoint multiPoint,
                                                int maxdecimaldigits)

toGeojsonMultiLineString

public static LinkedHashMap toGeojsonMultiLineString(org.locationtech.jts.geom.MultiLineString multiLineString,
                                                     int maxdecimaldigits)

toGeojsonMultiPolygon

public static LinkedHashMap toGeojsonMultiPolygon(org.locationtech.jts.geom.MultiPolygon multiPolygon,
                                                  int maxdecimaldigits)

toGeojsonGeometryCollection

public static LinkedHashMap toGeojsonGeometryCollection(org.locationtech.jts.geom.GeometryCollection geometryCollection,
                                                        int maxdecimaldigits)

toGeojsonCoordinates

public static ArrayList toGeojsonCoordinates(org.locationtech.jts.geom.Coordinate[] coords,
                                             int maxdecimaldigits)

toGeojsonCoordinate

public static ArrayList toGeojsonCoordinate(org.locationtech.jts.geom.Coordinate coord,
                                            int maxdecimaldigits)