Package uk.ac.starlink.ttools.plot
Interface Pixellator
- All Known Implementing Classes:
BitSetPixellator
,Drawing
,PointArrayPixellator
,TranslatedPixellator
public interface Pixellator
Reusable iterator over pixel positions.
Implementations will not in general be thread-safe.
- Since:
- 28 Mar 2007
- Author:
- Mark Taylor
-
Method Summary
Modifier and TypeMethodDescriptionReturns a copy of the bounding rectangle for this pixellator.int
getX()
Returns the X value for the current point.int
getY()
Returns the Y value for the current point.boolean
next()
Moves to the next point in the sequence.void
start()
Makes this object ready to iterate.
-
Method Details
-
getBounds
Rectangle getBounds()Returns a copy of the bounding rectangle for this pixellator. All points iterated over by this object will fall within this rectangle. If this object has no points,null
may be returned.- Returns:
- bounds
-
start
void start()Makes this object ready to iterate. Should be called before any call tonext()
. -
next
boolean next()Moves to the next point in the sequence. Must be called before any call togetX()
/getY()
. Returns value indicates whether there is a next point.- Returns:
- next true iff there are more points
-
getX
int getX()Returns the X value for the current point.- Returns:
- x
-
getY
int getY()Returns the Y value for the current point.- Returns:
- y
-