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public interface SkyPixellator
Provides a pixellisation of the celestial sphere.
Usually it is necessary to call setScale(double)
before an instance
of this class can be used.
Method Summary | |
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Object[] |
getPixels(double alpha,
double delta,
double radius)
Returns an array of objects representing pixels in a given region. |
double |
getScale()
Returns the most recently set angular scale. |
DescribedValue |
getTuningParameter()
Returns a parameter whose value may be adjusted to alter the pixellisation scale. |
void |
setScale(double scale)
Sets the characteristic angular scale for this pixellator. |
Method Detail |
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void setScale(double scale)
scale
- pixel length scale in radiansdouble getScale()
Object[] getPixels(double alpha, double delta, double radius)
equals
and hashCode
methods
appropriately, so that objects returned from one call can be
compared for identity with objects returned from a subsequent call.
This comparability is only guaranteed to work if the pixel scale
is not changed in between calls.
alpha
- right ascension of circle centre in radiansdelta
- declination of circle centre in radiansradius
- radius of circle in radians
DescribedValue getTuningParameter()
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Copyright © 2004 CLRC: Central Laboratory of the Research Councils. All rights reserved. | ||||||||
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