uk.ac.starlink.ttools.plot2.layer
Class PixOutliner
java.lang.Object
uk.ac.starlink.ttools.plot2.layer.PixOutliner
- All Implemented Interfaces:
- Outliner
- Direct Known Subclasses:
- SizeForm.SizeOutliner, SizeXyForm.SizeXyOutliner
public abstract class PixOutliner
- extends Object
- implements Outliner
Partial Outliner implementation which calculates its bin plan
simply by using the create2DPainter
method.
If no clever shortcut presents itself, this is a reasonable way to do it.
- Since:
- 26 Feb 2013
- Author:
- Mark Taylor
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PixOutliner
public PixOutliner()
calculateBinPlan
public Object calculateBinPlan(Surface surface,
DataGeom geom,
Map<AuxScale,Range> auxRanges,
DataStore dataStore,
DataSpec dataSpec,
Object[] knownPlans)
- Description copied from interface:
Outliner
- Calculates an opaque object which contains the drawing of this
outliner represented as an array of bins, one per pixel.
To make sense of the returned object, use the
Outliner.getBinCounts(java.lang.Object)
and Outliner.getPointCount(java.lang.Object)
methods.
If one of the supplied knowPlans fits the bill, it will be
returned without further calculation.
- Specified by:
calculateBinPlan
in interface Outliner
- Parameters:
surface
- plot surfacegeom
- coordinate geometryauxRanges
- map of scale information required for plotdataStore
- data storagedataSpec
- coordinate specificationknownPlans
- list of existing plans
- Returns:
- bin plan, either newly calculated or taken from
knownPlans
getBinCounts
public int[] getBinCounts(Object binPlan)
- Description copied from interface:
Outliner
- Returns the bin contents for a given bin plan produced by
this object.
- Specified by:
getBinCounts
in interface Outliner
- Parameters:
binPlan
- bin plan returned from calculateBinPlan
- Returns:
- array of counts, one element per bin
getPointCount
public long getPointCount(Object binPlan)
- Description copied from interface:
Outliner
- Returns the number of data positions which contributed to
a BinPlan generated by this object.
This may or may not be the same as the sum of the pixel counts
in the binCounts array; if each data position might contribute
multiple pixel hits, the numbers will not be the same.
- Specified by:
getPointCount
in interface Outliner
- Parameters:
binPlan
- bin plan returned from calculateBinPlan
- Returns:
- number of data positions in plan
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