| Package | Description |
|---|---|
| net.grelf.astro |
This package contains Java classes for astronomical applications.
|
| net.grelf.grip |
This package contains the Java classes which are specific to the image
processing application GRIP.
GRIP is available as a free download from www.grelf.net - please always quote this URL in connection with GRIP. Version: 18.1.24 |
| Modifier and Type | Method and Description |
|---|---|
SkyPoint |
Topocentre.adjust(SkyPoint geocentric,
double deltaAU,
JulianDate jd)
Adjust the given geocentric SkyPoint of an object at distance deltaAU
(in astronomical units) to its topocentric value, ie as seen from
this Topocentre at the given time.
|
SkyPoint |
SkyPoint.clone()
Returns a new SkyPoint object with the same data.
|
protected SkyPoint |
Star.estimatePlateCentre(java.util.List<BlobMeas> refBlobs,
Image image,
Epoch epoch,
MeasuredValue degreesPerPixel) |
SkyPoint |
Star.getPosition()
If the star's position is unknown this returns null.
|
SkyPoint |
AstroGridGateway.getPositionOfNamedObject(java.lang.String name)
Uses the Sesame service (see
http://cdsweb.u-strasbg.fr/doc/sesame.htx) via AstroGrid.
|
SkyPoint |
Star.measurePosition(ImFrame parentFrame,
BlobMeasList measList)
If this star has unknown position (RA/Dec), do astrometry using the known
reference stars in the given MeasList.
|
SkyPoint |
SkyPoint.offset(SkyVector sv)
Get the point reached by great circle offset from the current point by a
given SkyVector.
|
| Modifier and Type | Method and Description |
|---|---|
SkyPoint |
Topocentre.adjust(SkyPoint geocentric,
double deltaAU,
JulianDate jd)
Adjust the given geocentric SkyPoint of an object at distance deltaAU
(in astronomical units) to its topocentric value, ie as seen from
this Topocentre at the given time.
|
double |
Topocentre.calcAltitudeDegs(SkyPoint pt,
JulianDate jd)
Calculate the altitude of the given SkyPoint above the local horizon
at the given time.
|
double |
Topocentre.calcAzimuthDegs(SkyPoint pt,
JulianDate jd)
Calculate the azimuth (measured from South via West) of the given
SkyPoint above the local horizon at the given time.
|
SkyVector |
SkyPoint.calculateSeparation(SkyPoint other)
Calculate position angle (PA) and spherical separation from this to
another SkyPoint.
|
protected void |
StarChartLoader.initialiseChartCoordinates(SkyPoint plotCentre,
double fieldRadiusDegs)
Calculate certain fields just once so they do not have to be calculated
for every star.
|
void |
Hipparcos.load(java.util.List<Star> stars,
java.util.Map<java.lang.String,Star> hipStars,
SkyPoint plotCentre,
JulianDate epoch,
double fieldRadius)
Append stars from the Hipparcos data set to the given list.
|
void |
Tycho.load(java.util.List<Star> stars,
java.util.Map<java.lang.String,Star> hipStars,
SkyPoint plotCentre,
JulianDate epoch,
double fieldRadius)
Append stars from the Tycho data set to the given list.
|
java.util.List<Star> |
AstroGridGateway.searchCone(SkyPoint centre,
double radiusDegrees)
Search a cone in the sky of given angular radius about the given
direction.
|
java.util.List<Star> |
SimbadGateway.searchCone(SkyPoint centre,
double radiusDegs,
java.lang.String rootURL,
javax.swing.JTextArea textarea)
Use a Simbad coordinate query as a REST web service: HTTP request
responds with XML VOTable.
|
void |
Star.setPosition(SkyPoint pt) |
| Modifier and Type | Method and Description |
|---|---|
static SkyPoint |
Astrometry.measure(Image im,
java.util.List<Star> refStars,
java.util.List<PointFloat> refPoints,
SkyPoint approxPlateCentre,
PointFloat targetPoint)
The image is assumed NOT to have been through an inverse gnomonic
projection.
|
| Modifier and Type | Method and Description |
|---|---|
static SkyPoint |
Astrometry.measure(Image im,
java.util.List<Star> refStars,
java.util.List<PointFloat> refPoints,
SkyPoint approxPlateCentre,
PointFloat targetPoint)
The image is assumed NOT to have been through an inverse gnomonic
projection.
|