public class Circle extends Region
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Mapping.Interpolator, Mapping.Spreader
OVERLAP_INSIDE, OVERLAP_NEGATE, OVERLAP_NONE, OVERLAP_OUTSIDE, OVERLAP_PARTIAL, OVERLAP_SAME, OVERLAP_UNKNOWN
LINEAR_INTERPOLATOR, LINEAR_SPREADER, NEAREST_INTERPOLATOR, NEAREST_SPREADER
AST__BAD, AST__TUNULL, pointer
Constructor and Description 

Circle(Frame frame,
double[] centre,
double[] point,
Region unc)
Create a Circle given a centre and point on the circumference.

Circle(Frame frame,
double[] centre,
double radius,
Region unc)
Create a Circle given a centre and radius.

Circle(Frame frame,
int form,
double[] centre,
double[] point,
Region unc)
Create a Circle.

getAdaptive, getBounded, getClosed, getFillFactor, getMeshSize, getNegated, getRegionBounds, getRegionFrame, getRegionPoints, getUnc, mapRegion, mask, maskB, maskD, maskF, maskI, maskL, maskS, negate, overlap, setAdaptive, setClosed, setFillFactor, setMeshSize, setNegated, setUnc, showMesh
angle, axAngle, axDistance, axOffset, convert, distance, findFrame, format, getActiveUnit, getAlignSystem, getBottom, getDigits, getDigits, getDirection, getDomain, getDut1, getEpoch, getFormat, getLabel, getMatchEnd, getMaxAxes, getMinAxes, getNaxes, getNormUnit, getObsLat, getObsLon, getPermute, getPreserveAxes, getSymbol, getSystem, getTitle, getTop, getUnit, intersect, norm, offset, offset2, permAxes, pickAxes, resolve, setActiveUnit, setAlignSystem, setBottom, setDigits, setDigits, setDirection, setDomain, setDut1, setEpoch, setEpoch, setFormat, setLabel, setMatchEnd, setMaxAxes, setMinAxes, setObsLat, setObsLon, setPermute, setPreserveAxes, setSymbol, setSystem, setTitle, setTop, setUnit, unformat
decompose, getInvert, getNin, getNout, getReport, getTranForward, getTranInverse, invert, linearApprox, mapBox, mapSplit, rate, rebin, rebinD, rebinF, rebinI, resample, resampleB, resampleD, resampleF, resampleI, resampleL, resampleS, setInvert, setReport, simplify, tran1, tran2, tranGrid, tranN, tranP
annul, clear, copy, delete, equals, finalize, getAstConstantI, getB, getC, getD, getF, getI, getID, getIdent, getL, getNobject, getObjSize, getRefCount, hashCode, isThreaded, reportVersions, sameObject, set, setB, setC, setD, setF, setI, setID, setIdent, setL, show, test, tune
public Circle(Frame frame, int form, double[] centre, double[] point, Region unc)
A Circle is a Region which represents a circle or sphere within the supplied Frame.
frame
 A pointer to the Frame in which the region is defined. A deep
copy is taken of the supplied Frame. This means that any
subsequent changes made to the Frame using the supplied pointer
will have no effect the Region.form
 Indicates how the circle is described by the remaining parameters.
A value of zero indicates that the circle is specified by a
centre position and a position on the circumference. A value of one
indicates that the circle is specified by a centre position and a
scalar radius.unc
 An optional pointer to an existing Region which specifies the
uncertainties associated with the boundary of the Circle being created.
The uncertainty in any point on the boundary of the Circle is found by
shifting the supplied "uncertainty" Region so that it is centred at
the boundary point being considered. The area covered by the
shifted uncertainty Region then represents the uncertainty in the
boundary position. The uncertainty is assumed to be the same for
all points.
If supplied, the uncertainty Region must be of a class for which all instances are centrosymetric (e.g. Box, Circle, Ellipse, etc.) or be a Prism containing centrosymetric component Regions. A deep copy of the supplied Region will be taken, so subsequent changes to the uncertainty Region using the supplied pointer will have no effect on the created Circle. Alternatively, a NULL Object pointer may be supplied, in which case a default uncertainty is used equivalent to a box 1.0E6 of the size of the Circle being created.
The uncertainty Region has two uses: 1) when the astOverlap function compares two Regions for equality the uncertainty Region is used to determine the tolerance on the comparison, and 2) when a Region is mapped into a different coordinate system and subsequently simplified (using astSimplify), the uncertainties are used to determine if the transformed boundary can be accurately represented by a specific shape of Region.
AstException
 if an error occurred in the AST librarypublic Circle(Frame frame, double[] centre, double radius, Region unc)
frame
 frame in which region will exist (a deep copy is taken)centre
 Naxeselement array giving centre of circle regionradius
 radius of circle regionunc
 uncertainty associated with the circle's boundary;
may be nullCircle(uk.ac.starlink.ast.Frame,int,double[],double[],uk.ac.starlink.ast.Region)
public Circle(Frame frame, double[] centre, double[] point, Region unc)
frame
 frame in which region will exist (a deep copy is taken)centre
 Naxeselement array giving centre of circle regionpoint
 Naxeselement array giving a point on the circle
region's circumferenceunc
 uncertainty associated with the circle's boundary;
may be nullCircle(uk.ac.starlink.ast.Frame,int,double[],double[],uk.ac.starlink.ast.Region)
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