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E

EDINBURGH - Static variable in class net.grelf.astro.Topocentre
 
enableItems() - Method in class net.grelf.grip.ImTableMenu
 
Epoch - Class in net.grelf.astro
Represent astronomical epochs, such as B1950.0 or J2010.0.
Epoch(float) - Constructor for class net.grelf.astro.Epoch
Creates an Epoch assuming the type letter is 'J'.
Epoch(char, float) - Constructor for class net.grelf.astro.Epoch
Creates an Epoch with any type letter (but it must be 'B' or 'J' to make sense astronomically).
epoch - Variable in class net.grelf.astro.StarChartLoader
 
equalAngles(Triangle, Angle) - Method in class net.grelf.Triangle
True even if the vertices are cycled round in the other triangle, in which case - NB! - other is cycled by this method so it matches, but false if other is flipped over relative to this.
equalise(Image) - Method in class net.grelf.image.HistogramAll
 
equaliseHistogram() - Method in class net.grelf.grip.ImFrame
 
equals(Object) - Method in class net.grelf.Angle
 
equals(Angle, Angle) - Method in class net.grelf.Angle
 
equals(Object) - Method in class net.grelf.astro.Dec
 
equals(Object) - Method in class net.grelf.astro.Epoch
 
equals(Object) - Method in class net.grelf.astro.JulianDate
 
equals(Object) - Method in class net.grelf.astro.Magnitude
 
equals(Object) - Method in class net.grelf.astro.ProperMotion
 
equals(Object) - Method in class net.grelf.astro.RA
 
equals(Object) - Method in class net.grelf.astro.SkyPoint
 
equals(Object) - Method in class net.grelf.astro.SkyVector
 
equals(Object) - Method in class net.grelf.astro.Star
Does not involve the fields xdd and zdd because a given star may be plotted in different positions on different StarCharts.
equals(Object) - Method in class net.grelf.Complex
 
equals(Object) - Method in class net.grelf.image.Calibration
 
equals(Object) - Method in class net.grelf.image.RangeDouble
 
equals(Object) - Method in class net.grelf.image.RangeInt
 
equals(Object, Length) - Method in class net.grelf.Length
Equality after doing any necessary unit conversions, and within the given tolerance.
equals(Object) - Method in class net.grelf.Length
Equality after doing any necessary unit conversions, and within a tolerance which is the current value multiplied by 1.0E-15.
equals(Object) - Method in class net.grelf.Line
 
equals(Object) - Method in class net.grelf.LineSegment
 
equals(Object) - Method in class net.grelf.MeasuredValue
Tests for equality of value, sigma and units to 12 decimals.
equals(Object) - Method in class net.grelf.PointFloat
 
equals(Object) - Method in class net.grelf.Triangle
 
equals(Object) - Method in class net.grelf.VectorFloat
Test for equality within the radius and angle tolerances.
equinox - Variable in class net.grelf.astro.StarChartLoader
 
erase(byte[][]) - Method in interface net.grelf.grip.Blob
Erase this blob from a given mask.
erase(byte[][]) - Method in class net.grelf.grip.Blob_
Erase this blob from a given mask.
eraseToBackground(BlobMeas, ImFrame) - Method in class net.grelf.grip.Blob_
For removing stars during comet stacking.
erf(double) - Static method in class net.grelf.Maths
Gauss error function erf (z) = (2 / sqrt (pi)) * integral (exp (-t * t), t = 0..z) Fractional error less than 1.2E-7 although subject to catastrophic cancellation when z is very close to 0.
erf2(double) - Static method in class net.grelf.Maths
Fractional error less than x.xx * 10 ^ -4.
erode() - Method in class net.grelf.image.ByteMask
Operation on mask.
escape(StringBuffer) - Static method in class net.grelf.XmlUtil
Convert the 5 special characters <>'"& to entities wherever they occur in the given text.
estimatePlateCentre(List<BlobMeas>, Image, Epoch, MeasuredValue) - Method in class net.grelf.astro.Star
 
Exif - Class in net.grelf.image
Class for examining EXIF-format metadata in any file.
Exif() - Constructor for class net.grelf.image.Exif
 
ExifFile - Class in net.grelf.image
Methods for reading multi-byte values from the EXIF data section of an image file (EXIF is similar to TIFF).
ExifFile(String, String) - Constructor for class net.grelf.image.ExifFile
 
ExifTag - Class in net.grelf.image
Tags used in EXIF metadata sections of image files (similar format to TIFF).
ExifTag(int, String, int, long) - Constructor for class net.grelf.image.ExifTag
 
exifTags - Static variable in class net.grelf.image.ExifTag
Array of all known EXIF tags.
exit() - Method in class net.grelf.grip.GRIP
 
expandPower2() - Method in class net.grelf.grip.ImFrame
Expand the image so its width and height are the next larger powers of 2, adding a constant width black rim on all sides.
ExperimentMenu - Class in net.grelf.grip
This is an ImFrame menu for experimental programming - not for general users.
ExperimentMenu(ImFrame) - Constructor for class net.grelf.grip.ExperimentMenu
 
expi(double) - Static method in class net.grelf.Complex
Get exp (i.theta) = cos (theta) + i.sin (theta).
expi(Angle) - Static method in class net.grelf.Complex
Get exp (i.theta) = cos (theta) + i.sin (theta).
EXPOSURE_KEYWORD - Static variable in class net.grelf.image.Metadata
 
extension - Variable in class net.grelf.FileFilterExtra
 
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