Uses of Package
net.grelf

Packages that use net.grelf

net.grelf	This package contains general-purpose Java classes: non-astronomical and not specific to GRIP.
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: 12.1.1
net.grelf.image	This package contains Java classes defining and processing images.

Classes in net.grelf used by net.grelf

Angle
In java.lang.(Strict)Math you have to keep track of whether an angle is in degrees or radians when you use trigonometrical functions; the present class knows what to do, so you can forget about it! This should reduce the potential for errors of the degrees/radians kind.

Rationale
A continual refrain in Jean Meeus' excellent series of books on astronomical computation is the risk of errors due to the fact that angles are usually given in degrees but trigonometry requires radians.

Angle.Units

Complex
Complex numbers and operations upon them.

FileIOImageFilter
Support class for FileIO.

Fitter
Fits data to particular curves.

Maths.Statistics
Just a record to hold public values.

MeasuredValue
Record to hold a measured value x, its standard error S and its units, so it can be stated as x +/- S units.

MixedUnitsException
Thrown if there is an attempt to combine arithmetically 2 quantities with different units.

PointFloat
A 2D geometrical point with coordinates of type float.

Stack
A simple last-in-first-out (LIFO) stack, to a better OO design than Sun's one: it only exposes the behaviour that a stack should have.

Statistics
Record to hold a set of measurements of a distribution.

TimeInterval
This class describes the start and end times of an image exposure.

VectorFloat
Objects of this class describe the vector connecting two detected objects (Blobs).

Classes in net.grelf used by net.grelf.astro

AbstractDialogue
Provide some methods for GRIP dialogues to inherit: they should extend this rather than JDialog.

Angle
In java.lang.(Strict)Math you have to keep track of whether an angle is in degrees or radians when you use trigonometrical functions; the present class knows what to do, so you can forget about it! This should reduce the potential for errors of the degrees/radians kind.

Rationale
A continual refrain in Jean Meeus' excellent series of books on astronomical computation is the risk of errors due to the fact that angles are usually given in degrees but trigonometry requires radians.

Angle.Units

InadequateDataException
May be thrown if an operation cannot be carried out because the data are not suitable.

MeasuredValue
Record to hold a measured value x, its standard error S and its units, so it can be stated as x +/- S units.

TimeInterval
This class describes the start and end times of an image exposure.

Classes in net.grelf used by net.grelf.grip

AbstractDialogue
Provide some methods for GRIP dialogues to inherit: they should extend this rather than JDialog.

PointFloat
A 2D geometrical point with coordinates of type float.

Statistics
Record to hold a set of measurements of a distribution.

TimeInterval
This class describes the start and end times of an image exposure.

VectorFloat
Objects of this class describe the vector connecting two detected objects (Blobs).

Classes in net.grelf used by net.grelf.image

Statistics
Record to hold a set of measurements of a distribution.