ucar.nc2.internal.grid

Class GridLatLon2D

java.lang.Object

ucar.nc2.internal.grid.GridHorizCS

ucar.nc2.internal.grid.GridLatLon2D

All Implemented Interfaces:

GridHorizCoordinateSystem

public class GridLatLon2D
extends GridHorizCS

A GridHorizCoordinateSystem with 2d lat/lon axes.

Nested Class Summary

Nested classes/interfaces inherited from interface ucar.nc2.grid.GridHorizCoordinateSystem

GridHorizCoordinateSystem.CoordReturn

Method Summary

Modifier and Type	Method and Description
Optional<GridHorizCoordinateSystem.CoordReturn>	findXYindexFromCoord(double x, double y) From the (x,y) projection point, find the indices and coordinates of the horizontal 2D grid.
ProjectionRect	getBoundingBox() Get horizontal bounding box in projection coordinates.
String	getGeoUnits() Get the horizontal coordinate units, null for latlon.
GridAxis2D	getLatAxis()
LatLonPoint	getLatLon(int xindex, int yindex) Get the Lat/Lon coordinates of the midpoint of a grid cell, using the x,y indices
GridAxis2D	getLonAxis()
List<Range>	getRangesFromLatLonRect(LatLonRect rect) Get Index Ranges for the given lat, lon bounding box.
int[]	getShape()
boolean	isLatLon() Does this use lat/lon horizontal axes?
boolean	isRegular() True if both X and Y axes are 1 dimensional and are regularly spaced.

Methods inherited from class ucar.nc2.internal.grid.GridHorizCS

create, equals, getHorizStaggerType, getLatLonBoundingBox, getProjection, getXHorizAxis, getYHorizAxis, hashCode, isGlobalLon, subset

Methods inherited from class java.lang.Object

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

Method Detail

getShape

public int[] getShape()

getLatAxis

public GridAxis2D getLatAxis()

getLonAxis

public GridAxis2D getLonAxis()

isLatLon

public boolean isLatLon()

Description copied from interface: GridHorizCoordinateSystem

Does this use lat/lon horizontal axes?

Specified by:

isLatLon in interface GridHorizCoordinateSystem

Overrides:

isLatLon in class GridHorizCS

isRegular

public boolean isRegular()

Description copied from interface: GridHorizCoordinateSystem

True if both X and Y axes are 1 dimensional and are regularly spaced.

Specified by:

isRegular in interface GridHorizCoordinateSystem

Overrides:

isRegular in class GridHorizCS

getGeoUnits

@Nullable
public String getGeoUnits()

Description copied from interface: GridHorizCoordinateSystem

Get the horizontal coordinate units, null for latlon. Needed to convert projection units. TODO add to projection directly ??

Specified by:

getGeoUnits in interface GridHorizCoordinateSystem

Overrides:

getGeoUnits in class GridHorizCS

getBoundingBox

public ProjectionRect getBoundingBox()

Description copied from interface: GridHorizCoordinateSystem

Get horizontal bounding box in projection coordinates.

Specified by:

getBoundingBox in interface GridHorizCoordinateSystem

Overrides:

getBoundingBox in class GridHorizCS

getLatLon

public LatLonPoint getLatLon(int xindex,
                             int yindex)

Description copied from class: GridHorizCS

Get the Lat/Lon coordinates of the midpoint of a grid cell, using the x,y indices

Overrides:

getLatLon in class GridHorizCS

Parameters:

xindex - x index

yindex - y index

Returns:

lat/lon coordinate of the midpoint of the cell

findXYindexFromCoord

public Optional<GridHorizCoordinateSystem.CoordReturn> findXYindexFromCoord(double x,
                                                                            double y)

Description copied from interface: GridHorizCoordinateSystem

From the (x,y) projection point, find the indices and coordinates of the horizontal 2D grid.

Specified by:

findXYindexFromCoord in interface GridHorizCoordinateSystem

Overrides:

findXYindexFromCoord in class GridHorizCS

getRangesFromLatLonRect

public List<Range> getRangesFromLatLonRect(LatLonRect rect)
                                    throws InvalidRangeException

Description copied from class: GridHorizCS

Get Index Ranges for the given lat, lon bounding box. For projection, only an approximation based on latlon corners.

Overrides:

getRangesFromLatLonRect in class GridHorizCS

Parameters:

rect - the requested lat/lon bounding box

Returns:

list of 2 Range objects, first y then x.

Throws:

InvalidRangeException