- EDINBURGH - Static variable in class net.grelf.astro.Topocentre
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- enableItems() - Method in class net.grelf.grip.ImTableMenu
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- Epoch - Class in net.grelf.astro
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Represent astronomical epochs, such as B1950.0 or J2010.0.
- Epoch(float) - Constructor for class net.grelf.astro.Epoch
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Creates an Epoch assuming the type letter is 'J'.
- Epoch(char, float) - Constructor for class net.grelf.astro.Epoch
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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
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- equalAngles(Triangle, Angle) - Method in class net.grelf.Triangle
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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
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- equaliseHistogram() - Method in class net.grelf.grip.ImFrame
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- equals(Object) - Method in class net.grelf.Angle
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- equals(Angle, Angle) - Method in class net.grelf.Angle
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- equals(Object) - Method in class net.grelf.astro.Dec
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- equals(Object) - Method in class net.grelf.astro.Epoch
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- equals(Object) - Method in class net.grelf.astro.JulianDate
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- equals(Object) - Method in class net.grelf.astro.Magnitude
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- equals(Object) - Method in class net.grelf.astro.ProperMotion
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- equals(Object) - Method in class net.grelf.astro.RA
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- equals(Object) - Method in class net.grelf.astro.SkyPoint
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- equals(Object) - Method in class net.grelf.astro.SkyVector
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- equals(Object) - Method in class net.grelf.astro.Star
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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
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- equals(Object) - Method in class net.grelf.image.Calibration
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- equals(Object) - Method in class net.grelf.image.RangeDouble
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- equals(Object) - Method in class net.grelf.image.RangeInt
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- equals(Object, Length) - Method in class net.grelf.Length
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Equality after doing any necessary unit conversions, and within the
given tolerance.
- equals(Object) - Method in class net.grelf.Length
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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
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- equals(Object) - Method in class net.grelf.LineSegment
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- equals(Object) - Method in class net.grelf.MeasuredValue
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Tests for equality of value, sigma and units to 12 decimals.
- equals(Object) - Method in class net.grelf.PointFloat
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- equals(Object) - Method in class net.grelf.Triangle
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- equals(Object) - Method in class net.grelf.VectorFloat
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Test for equality within the radius and angle tolerances.
- equinox - Variable in class net.grelf.astro.StarChartLoader
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- erase(byte[][]) - Method in interface net.grelf.grip.Blob
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Erase this blob from a given mask.
- erase(byte[][]) - Method in class net.grelf.grip.Blob_
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Erase this blob from a given mask.
- eraseToBackground(BlobMeas, ImFrame) - Method in class net.grelf.grip.Blob_
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For removing stars during comet stacking.
- erf(double) - Static method in class net.grelf.Maths
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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
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Fractional error less than x.xx * 10 ^ -4.
- erode() - Method in class net.grelf.image.ByteMask
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Operation on mask.
- escape(StringBuffer) - Static method in class net.grelf.XmlUtil
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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
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- Exif - Class in net.grelf.image
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Class for examining EXIF-format metadata in any file.
- Exif() - Constructor for class net.grelf.image.Exif
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- ExifFile - Class in net.grelf.image
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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
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- ExifTag - Class in net.grelf.image
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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
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- exifTags - Static variable in class net.grelf.image.ExifTag
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Array of all known EXIF tags.
- exit() - Method in class net.grelf.grip.GRIP
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- expandPower2() - Method in class net.grelf.grip.ImFrame
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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
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This is an ImFrame menu for experimental programming - not for general users.
- ExperimentMenu(ImFrame) - Constructor for class net.grelf.grip.ExperimentMenu
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- expi(double) - Static method in class net.grelf.Complex
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Get exp (i.theta) = cos (theta) + i.sin (theta).
- expi(Angle) - Static method in class net.grelf.Complex
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Get exp (i.theta) = cos (theta) + i.sin (theta).
- EXPOSURE_KEYWORD - Static variable in class net.grelf.image.Metadata
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- extension - Variable in class net.grelf.FileFilterExtra
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