DrawingGlyph (Starjava TTOOLS API)

java.lang.Object

uk.ac.starlink.ttools.plot2.layer.DrawingGlyph

All Implemented Interfaces:: Glyph

Direct Known Subclasses:: LineGlyph

public abstract class DrawingGlyph extends Object implements Glyph

Abstract Glyph subclass that uses a PixelDrawing.

Since:: 7 Oct 2021
Author:: Mark Taylor

Constructor Summary

Constructors

Constructor

Description

DrawingGlyph()
Method Summary

Modifier and Type

Method

Description

final Pixer

createPixer(Rectangle clip)

Returns an iterator over pixel offsets for this glyph's shape, considered to be at the origin.

abstract PixelDrawing

createPixerFactory(Rectangle clip)

Returns a drawing that can dispense pixers for this glyph.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface uk.ac.starlink.ttools.plot2.Glyph
paintGlyph

Constructor Details
- DrawingGlyph
  
  public DrawingGlyph()
Method Details
- createPixerFactory
  
  public abstract PixelDrawing createPixerFactory(Rectangle clip)
  
  Returns a drawing that can dispense pixers for this glyph.
  
  Parameters:
  
  clip - clip shape
- createPixer
  
  public final Pixer createPixer(Rectangle clip)
  
  Description copied from interface: Glyph
  
  Returns an iterator over pixel offsets for this glyph's shape, considered to be at the origin. Typically this means the pixel collection is centred at that point. The returned iterator must not include any points outside of the given clip rectangle. A null return indicates that no pixels fall within the given clip.
  
  Specified by:
  
  createPixer in interface Glyph
  
  Parameters:
  
  clip - clip rectangle
  
  Returns:
  
  pixel iterator for the intersection of this glyph's shape and the given clip, or null for no pixels