ION Java User's Guide: ION Java Class and Method Reference

IONGrMap()

Constructs a new map centered at (lat, lon) with rotation rot.

Syntax

public IONGrMap()

public IONGrMap(int lat)

public IONGrMap(float lat)

public IONGrMap(double lat)

public IONGrMap(int lat, int lon)

public IONGrMap(float lat, float lon)

public IONGrMap(double lat, double lon)

public IONGrMap(int lat, int lon, int rot)

public IONGrMap(float lat, float lon, float rot)

public IONGrMap(double lat, double lon, double rot)

public IONGrMap(String sLat)

public IONGrMap(String sLat, String sLon)

public IONGrMap(String sLat, String sLon, String sRot)

Arguments

lat

The latitude of the point on the Earth's surface to be mapped to the center of the projection plane. Latitude is measured in degrees north of the equator, and lat must be in the range -90° £ lat £ 90°. The default is 0.

lon

The longitude of the point on the Earth's surface to be mapped to the center of the projection plane. Longitude is measured in degrees east of the Greenwich meridian, and lon must be in the range -180° £ lon £ 180°. The default is 0.

rot

The angle through which the North direction should be rotated around the line L between the Earth's center and the point (lat, lon). This angle is measured in degrees with the positive direction being clockwise around the line L, and must be in the range -180° £ rot £ 180°. The default is 0.

If the center of the map is at the North pole, North is in the direction lon + 180°. If the origin is at the South pole, North is in the direction lon.

sLat, sLon, sRot

Strings representing the latitude, longitude, and rotation.

Exceptions

None.

  IDL Online Help (March 06, 2007)