PathIterator
public class FlatteningPathIterator extends Object implements PathIterator
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.SEG_CLOSE, SEG_CUBICTO, SEG_LINETO, SEG_MOVETO, SEG_QUADTO, WIND_EVEN_ODD, WIND_NON_ZERO
Constructor | Description |
---|---|
FlatteningPathIterator |
Constructs a new FlatteningPathIterator object that flattens a path as it iterates over it. |
FlatteningPathIterator |
Constructs a new FlatteningPathIterator object that flattens a path as it iterates over it. |
Modifier and Type | Method | Description |
---|---|---|
int |
currentSegment |
Returns the coordinates and type of the current path segment in the iteration. |
int |
currentSegment |
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. |
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 curvepublic 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 segmentIllegalArgumentException
- if flatness
or limit
is less than zeropublic double getFlatness()
FlatteningPathIterator
.public int getRecursionLimit()
FlatteningPathIterator
.public int getWindingRule()
getWindingRule
in interface PathIterator
public boolean isDone()
isDone
in interface PathIterator
true
if all the segments have been read; false
otherwise.public void next()
next
in interface PathIterator
public int currentSegment(float[] coords)
currentSegment
in interface PathIterator
coords
- an array that holds the data returned from this methodNoSuchElementException
- if there are no more elements in the flattening path to be returned.public int currentSegment(double[] coords)
currentSegment
in interface PathIterator
coords
- an array that holds the data returned from this methodNoSuchElementException
- if there are no more elements in the flattening path to be returned.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/geom/FlatteningPathIterator.html