uk.ac.starlink.ttools.task
Class SkyDensityMap

java.lang.Object
  extended by uk.ac.starlink.ttools.task.ConsumerTask
      extended by uk.ac.starlink.ttools.task.SingleMapperTask
          extended by uk.ac.starlink.ttools.task.SkyDensityMap
All Implemented Interfaces:
uk.ac.starlink.task.Task

public class SkyDensityMap
extends SingleMapperTask

Calculates sky density maps and outputs them as tables.

The current implementation has the limitation that the same combiner has to be used for all aggregated quantities. If you want to calculate for instance the median of some quantities and the mean of others, you're out of luck. It's hard to work out what the parameters would look like to do it more generally.

Since:
18 Jul 2016
Author:
Mark Taylor

Constructor Summary
SkyDensityMap()
          Constructor.
 
Method Summary
 TableProducer createProducer(uk.ac.starlink.task.Environment env)
          Returns an object which can produce the effective output table which will be consumed by this task.
 
Methods inherited from class uk.ac.starlink.ttools.task.SingleMapperTask
createInputProducer
 
Methods inherited from class uk.ac.starlink.ttools.task.ConsumerTask
createExecutable, createProducer, getOutputMode, getParameterList, getParameters, getPurpose
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SkyDensityMap

public SkyDensityMap()
Constructor.

Method Detail

createProducer

public TableProducer createProducer(uk.ac.starlink.task.Environment env)
                             throws uk.ac.starlink.task.TaskException
Description copied from class: ConsumerTask
Returns an object which can produce the effective output table which will be consumed by this task.

Specified by:
createProducer in class ConsumerTask
Parameters:
env - execution environment
Returns:
table producer
Throws:
uk.ac.starlink.task.TaskException


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