Package uk.ac.starlink.table.join
Interface FixedRadiusConePixer
public interface FixedRadiusConePixer
Can calculate which sky pixels fall within a cone of variable radius.
- Since:
- 10 May 2022
- Author:
- Mark Taylor
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Method Summary
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Method Details
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getPixels
Returns an array of objects representing pixels in a fixed-radius cone around a given sky position. Any pixels overlapping the cone must be returned; additional pixels (false positives) may also be returned. The output objects must implement theequals
andhashCode
methods appropriately, so that objects returned from one call can be compared for identity with objects returned from a subsequent call.Instances of this class are not thread-safe, and should not be used concurrently from multiple threads.
- Parameters:
alpha
- right ascension of circle centre in radiansdelta
- declination of circle centre in radians- Returns:
- array of comparable pixel objects
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