uk.ac.starlink.ttools.plot2

Interface Glyph

All Known Implementing Classes:

DrawingGlyph, GraphicsGlyph, LineGlyph

public interface Glyph

Represents an uncoloured shape to be drawn, typically a small point marker. Any colouring is done outside of methods of this object.

Since:

12 Feb 2013

Author:

Mark Taylor

Method Summary

Modifier and Type	Method and Description
Pixer	createPixer(Rectangle clip) Returns an iterator over pixel offsets for this glyph's shape, considered to be at the origin.
void	paintGlyph(Graphics g) Paints a representation of a point considered to be at the origin.

Method Detail

paintGlyph

void paintGlyph(Graphics g)

Paints a representation of a point considered to be at the origin. Typically this means the painting is centred at that point.

Parameters:

g - graphics context

createPixer

Pixer createPixer(Rectangle clip)

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.

Parameters:

clip - clip rectangle

Returns:

pixel iterator for the intersection of this glyph's shape and the given clip, or null for no pixels