java.lang.Object

uk.ac.starlink.ttools.plot2.geom.SkyviewProjection

uk.ac.starlink.ttools.plot2.geom.FixedSkyviewProjection

All Implemented Interfaces:: Projection

public abstract class FixedSkyviewProjection extends SkyviewProjection

SkyviewProjection subclass that does not use mouse gestures to rotate the sky, only to pan and zoom over the projected plane.

Since:: 12 Mar 2019
Author:: Mark Taylor

Field Summary

Fields

Modifier and Type

Field

Description

static final FixedSkyviewProjection

AIT

Aitoff projection, lon=0 at center.

static final FixedSkyviewProjection

AIT0

Aitoff projection, lon=0 at edge.

static final FixedSkyviewProjection

CAR0

Cartesian projection, lon=0 at edge.

static final FixedSkyviewProjection

CAR1

Cartesian projection, lon=0 at center.

static final FixedSkyviewProjection

TAN

Gnomonic projection.
Constructor Summary

Constructors

Modifier

Constructor

Description

protected

FixedSkyviewProjection(skyview.geometry.Projecter projecter, Shape shape, String name, String description)

Constructor.
Method Summary

Modifier and Type

Method

Description

SkyAspect

createAspect(boolean reflect, double[] r3, double radiusRad, Range[] ranges)

Creates a SkyAspect from configuration information.

double[]

cursorRotate(double[] rotmat, Point2D.Double pos0, Point2D.Double pos1)

Returns null - rotation not implemented.

protected abstract double[]

getFixedRotation(boolean reflect)

Returns the fixed rotation matrix to use for this projection.

SkyFov

getFov(SkySurface surf)

Returns the field of view represented by this aspect.

double[]

projRotate(double[] rotmat, Point2D.Double pos0, Point2D.Double pos1)

Returns null - rotation not implemented.

boolean

useRanges(boolean reflect, double[] r3, double radiusRad)

Returns false - ranging not used.

Methods inherited from class SkyviewProjection
getProjectionDescription, getProjectionName, getProjectionShape, getSkyviewProjecter, project, unproject

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Projection
isContinuous, isContinuousLine

Field Details
- AIT
  
  public static final FixedSkyviewProjection AIT
  
  Aitoff projection, lon=0 at center.
- AIT0
  
  public static final FixedSkyviewProjection AIT0
  
  Aitoff projection, lon=0 at edge.
- CAR1
  
  public static final FixedSkyviewProjection CAR1
  
  Cartesian projection, lon=0 at center.
- CAR0
  
  public static final FixedSkyviewProjection CAR0
  
  Cartesian projection, lon=0 at edge.
- TAN
  
  public static final FixedSkyviewProjection TAN
  
  Gnomonic projection.
Constructor Details
- FixedSkyviewProjection
  
  protected FixedSkyviewProjection(skyview.geometry.Projecter projecter, Shape shape, String name, String description)
  
  Constructor.
  
  Parameters:
  
  projecter - projecter object
  
  shape - shape of the sky in this projection
  
  name - projection name
  
  description - projection description
Method Details
- getFixedRotation
  
  protected abstract double[] getFixedRotation(boolean reflect)
  
  Returns the fixed rotation matrix to use for this projection.
  
  Parameters:
  
  reflect - true to reflect longitude
  
  Returns:
  
  rotation matrix
- cursorRotate
  
  public double[] cursorRotate(double[] rotmat, Point2D.Double pos0, Point2D.Double pos1)
  
  Returns null - rotation not implemented.
  
  Parameters:
  
  rotmat - initial rotation matrix
  
  pos0 - initial cursor position
  
  pos1 - destination cursor position
  
  Returns:
  
  destination rotation matrix, or null
- projRotate
  
  public double[] projRotate(double[] rotmat, Point2D.Double pos0, Point2D.Double pos1)
  
  Returns null - rotation not implemented.
  
  Parameters:
  
  rotmat - initial rotation matrix
  
  pos0 - initial projected position
  
  pos1 - destination projected position
  
  Returns:
  
  destination rotation matrix, or null
- useRanges
  public boolean useRanges(boolean reflect, double[] r3, double radiusRad)
  
  Returns false - ranging not used.
  
  Parameters:
  
  reflect - whether requested aspect will be reflected
  
  r3 - central position of field of view (may be null)
  
  radiusRad - radius of field of view (may be NaN)
  
  Returns:
  
  true if ranges would be useful given the other arguments
  
  See Also:
  
  SurfaceFactory.readRanges(P, PlotLayer[], DataStore)
- createAspect
  public SkyAspect createAspect(boolean reflect, double[] r3, double radiusRad, Range[] ranges)
  
  Description copied from interface: Projection
  
  Creates a SkyAspect from configuration information. Either the supplied field of view or data ranges may be used, or neither.
  
  Parameters:
  
  reflect - whether requested aspect will be reflected
  
  r3 - central position of field of view (may be null)
  
  radiusRad - radius of field of view (may be NaN)
  
  ranges - definite ranges for normalised X,Y,Z coordinates acquired from data
  
  Returns:
  
  new sky aspect
  
  See Also:
  
  SurfaceFactory.createAspect(P, ConfigMap, Range[])
- getFov
  
  public SkyFov getFov(SkySurface surf)
  
  Description copied from interface: Projection
  
  Returns the field of view represented by this aspect. This is a best estimate, it may be approximate depending on the projection geometry. If the field of view is the default for this projection, then null should be returned. Null may also be returned if for some reason no field of view can be determined.
  
  Parameters:
  
  surf - sky surface, which must be set up using this projection
  
  Returns:
  
  field of view, or null

Class FixedSkyviewProjection

Field Summary

Constructor Summary

Method Summary

Methods inherited from class SkyviewProjection

Methods inherited from class Object

Methods inherited from interface Projection

Field Details

AIT

AIT0

CAR1

CAR0

TAN

Constructor Details

FixedSkyviewProjection

Method Details

getFixedRotation

cursorRotate

projRotate

useRanges

createAspect

getFov