Package org.orekit.models.earth.displacement

Class OceanLoadingCoefficientsBLQFactory

java.lang.Object

org.orekit.models.earth.displacement.OceanLoadingCoefficientsBLQFactory

public class OceanLoadingCoefficientsBLQFactory
extends Object

Factory for ocean loading coefficients, using Onsala Space Observatory files in BLQ format.

Files in BLQ format can be generated using the form at the Bos-Scherneck web site, selecting BLQ as the output format.

The sites names are extracted from the file content, not the file name, because the file can contain more than one station. As we expect existing files may have been stripped from headers and footers, we do not attempt to parse them. We only parse the series of 7 lines blocks starting with the lines with the station names and their coordinates and the 6 data lines that follows. Several such blocks may appear in the file. Copy-pasting the entire mail received from OSO after completing the web site form works, as intermediate lines between the 7 lines blocks are simply ignored.

Since:

9.1

Author:

Luc Maisonobe

See Also:

OceanLoadingCoefficients, OceanLoading

Field Summary

Fields

Modifier and Type	Field	Description
static String	DEFAULT_BLQ_SUPPORTED_NAMES	Default supported files name pattern for Onsala Space Observatory files in BLQ format.

Constructor Summary

Constructors

Constructor	Description
OceanLoadingCoefficientsBLQFactory(String supportedNames)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
OceanLoadingCoefficients	getCoefficients(String site)	Get the coefficients for a given site.
List<String>	getSites()	Get the list of sites for which we have found coefficients, in lexicographic order ignoring case.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BLQ_SUPPORTED_NAMES

public static final String DEFAULT_BLQ_SUPPORTED_NAMES

Default supported files name pattern for Onsala Space Observatory files in BLQ format.

See Also:

Constant Field Values

Constructor Detail

OceanLoadingCoefficientsBLQFactory

public OceanLoadingCoefficientsBLQFactory(String supportedNames)

Simple constructor.

Files in BLQ format can be generated using the form at the Bos-Scherneck web site, selecting BLQ as the output format.

Parameters:

supportedNames - regular expression for supported files names

See Also:

DEFAULT_BLQ_SUPPORTED_NAMES

Method Detail

getSites

public List<String> getSites()
                      throws OrekitException

Get the list of sites for which we have found coefficients, in lexicographic order ignoring case.

Returns:

list of sites for which we have found coefficients, in lexicographic order ignoring case

Throws:

OrekitException - if coefficients cannot be read

getCoefficients

public OceanLoadingCoefficients getCoefficients(String site)
                                         throws OrekitException

Get the coefficients for a given site.

Parameters:

site - site name (as it appears in the Onsala Space Observatory files in BLQ format), ignoring case

Returns:

coefficients for the site

Throws:

OrekitException - if no coefficients are found for the specified site