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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.awt.geom.FlatteningPathIterator
public class FlatteningPathIterator
The FlatteningPathIterator class returns a flattened view of
another PathIterator object. Other Shape
classes can use this class to provide flattening behavior for their paths
without having to perform the interpolation calculations themselves.
| Field Summary |
|---|
| Fields inherited from interface java.awt.geom.PathIterator |
|---|
SEG_CLOSE, SEG_CUBICTO, SEG_LINETO, SEG_MOVETO, SEG_QUADTO, WIND_EVEN_ODD, WIND_NON_ZERO |
| Constructor Summary | |
|---|---|
FlatteningPathIterator(PathIterator src,
double flatness)
Constructs a new FlatteningPathIterator object that
flattens a path as it iterates over it. |
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FlatteningPathIterator(PathIterator src,
double flatness,
int limit)
Constructs a new FlatteningPathIterator object
that flattens a path as it iterates over it. |
|
| Method Summary | |
|---|---|
int |
currentSegment(double[] coords)
Returns the coordinates and type of the current path segment in the iteration. |
int |
currentSegment(float[] coords)
Returns the coordinates and type of the current path segment in the iteration. |
double |
getFlatness()
Returns the flatness of this iterator. |
int |
getRecursionLimit()
Returns the recursion limit of this iterator. |
int |
getWindingRule()
Returns the winding rule for determining the interior of the path. |
boolean |
isDone()
Tests if the iteration is complete. |
void |
next()
Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public FlatteningPathIterator(PathIterator src,
double flatness)
FlatteningPathIterator object that
flattens a path as it iterates over it. The iterator does not
subdivide any curve read from the source iterator to more than
10 levels of subdivision which yields a maximum of 1024 line
segments per curve.
src - the original unflattened path being iterated overflatness - the maximum allowable distance between the
control points and the flattened curve
public FlatteningPathIterator(PathIterator src,
double flatness,
int limit)
FlatteningPathIterator object
that flattens a path as it iterates over it.
The limit parameter allows you to control the
maximum number of recursive subdivisions that the iterator
can make before it assumes that the curve is flat enough
without measuring against the flatness parameter.
The flattened iteration therefore never generates more than
a maximum of (2^limit) line segments per curve.
src - the original unflattened path being iterated overflatness - the maximum allowable distance between the
control points and the flattened curvelimit - the maximum number of recursive subdivisions
allowed for any curved segment
IllegalArgumentException - if
flatness or limit
is less than zero| Method Detail |
|---|
public double getFlatness()
FlatteningPathIterator.public int getRecursionLimit()
FlatteningPathIterator.public int getWindingRule()
getWindingRule in interface PathIteratorPathIterator.WIND_EVEN_ODD,
PathIterator.WIND_NON_ZEROpublic boolean isDone()
isDone in interface PathIteratortrue if all the segments have
been read; false otherwise.public void next()
next in interface PathIteratorpublic int currentSegment(float[] coords)
currentSegment in interface PathIteratorcoords - an array that holds the data returned from
this method
NoSuchElementException - if there
are no more elements in the flattening path to be
returned.PathIterator.SEG_MOVETO,
PathIterator.SEG_LINETO,
PathIterator.SEG_CLOSEpublic int currentSegment(double[] coords)
currentSegment in interface PathIteratorcoords - an array that holds the data returned from
this method
NoSuchElementException - if there
are no more elements in the flattening path to be
returned.PathIterator.SEG_MOVETO,
PathIterator.SEG_LINETO,
PathIterator.SEG_CLOSE
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Java™ Platform Standard Ed. 6 |
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