Package org.h2gis.functions.spatial.generalize

Class ST_SnapToGrid

java.lang.Object

org.h2gis.api.AbstractFunction

org.h2gis.api.DeterministicScalarFunction

org.h2gis.functions.spatial.generalize.ST_SnapToGrid

All Implemented Interfaces:

org.h2gis.api.Function, org.h2gis.api.ScalarFunction

public class ST_SnapToGrid
extends org.h2gis.api.DeterministicScalarFunction

Function to snap a geometry according a grid size

Author:

Erwan Bocher, CNRS, 2024

Field Summary

Fields inherited from interface org.h2gis.api.Function

PROP_NAME, PROP_REMARKS

Fields inherited from interface org.h2gis.api.ScalarFunction

PROP_DETERMINISTIC

Constructor Summary

Constructors

Constructor	Description
ST_SnapToGrid()

Method Summary

Modifier and Type	Method	Description
static org.locationtech.jts.geom.Geometry	execute(org.locationtech.jts.geom.Geometry geometry, float cell_size)	Reduce the geometry precision.
String	getJavaStaticMethod()
static double	scaleFactorForDecimalPlaces(int decimalPlaces)	Computes the scale factor for a given number of decimal places.

Methods inherited from class org.h2gis.api.AbstractFunction

addProperty, getProperty, removeProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2gis.api.Function

getProperty

Constructor Detail

ST_SnapToGrid

public ST_SnapToGrid()

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

execute

public static org.locationtech.jts.geom.Geometry execute(org.locationtech.jts.geom.Geometry geometry,
                                                         float cell_size)
                                                  throws SQLException

Reduce the geometry precision. cell_size is resolution of grid to snap the points

Parameters:

geometry -

cell_size -

Returns:

Throws:

SQLException

scaleFactorForDecimalPlaces

public static double scaleFactorForDecimalPlaces(int decimalPlaces)

Computes the scale factor for a given number of decimal places.

Parameters:

decimalPlaces -

Returns:

the scale factor