Package skyview.geometry.projecter
Class Tan
java.lang.Object
skyview.geometry.Transformer
skyview.geometry.Projecter
skyview.geometry.projecter.Tan
- All Implemented Interfaces:
Serializable
,Component
- Direct Known Subclasses:
Xtn
- See Also:
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Nested Class Summary
Nested Classes -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
allValid()
The entire projection plane is validGet a description of the componentgetName()
Get the name of the compontentinverse()
Get the inverse transformationboolean
Is this an inverse of some other transformation?double[]
tissot
(double x, double y) Get the Tissot parameters.final void
transform
(double[] sphere, double[] plane) Project a point from the sphere to the plane.Methods inherited from class skyview.geometry.Projecter
getInputDimension, getOutputDimension, getXTiling, getYTiling, shadowPoint, straddle, straddleable, straddleComponents, validPosition
Methods inherited from class skyview.geometry.Transformer
transform, transform
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Constructor Details
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Tan
public Tan()
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Method Details
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getName
Get the name of the compontent -
getDescription
Get a description of the component -
allValid
public boolean allValid()The entire projection plane is valid -
transform
public final void transform(double[] sphere, double[] plane) Project a point from the sphere to the plane.- Specified by:
transform
in classTransformer
- Parameters:
sphere
- a double[3] unit vectorplane
- a double[2] preallocated vector.
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inverse
Get the inverse transformation -
isInverse
Is this an inverse of some other transformation?- Specified by:
isInverse
in classTransformer
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tissot
public double[] tissot(double x, double y) Get the Tissot parameters.- Overrides:
tissot
in classProjecter
- Parameters:
x
- The X-value at which the Tissot indicatrix is to be calculated.y
- The Y-value at which the Tissot indicatrix is to be calculated.- Returns:
- A three element double vector [Semimajor, semiminor, position angle] with the axes size and positional angle of the ellipse.
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