org.apache.batik.ext.awt.geom
Interface ExtendedPathIterator
public
interface
ExtendedPathIterator
The ExtendedPathIterator
class represents a geometric
path constructed from straight lines, quadratic and cubic (Bezier)
curves and elliptical arcs. This interface is identical to that of
PathIterator except it can return SEG_ARCTO from currentSegment,
also the array of values passed to currentSegment must be of length
7 or an error will be thrown.
This does not extend PathIterator as it would break the interface
contract for that class.
Field Summary |
int | SEG_ARCTO The segment type constant for an elliptical arc. |
int | SEG_CLOSE
The segment type constant that specifies that the preceding
subpath should be closed by appending a line segment back to
the point corresponding to the most recent SEG_MOVETO. |
int | SEG_CUBICTO
The segment type constant for the set of 3 points that specify
a cubic parametric curve to be drawn from the most recently
specified point. |
int | SEG_LINETO
The segment type constant for a point that specifies the end
point of a line to be drawn from the most recently specified
point. |
int | SEG_MOVETO
The segment type constant for a point that specifies the end
point of a line to be drawn from the most recently specified
point. |
int | SEG_QUADTO
The segment type constant for the pair of points that specify a
quadratic parametric curve to be drawn from the most recently
specified point. |
int | WIND_EVEN_ODD The winding rule constant for specifying an even-odd rule for
determining the interior of a path. |
int | WIND_NON_ZERO
The winding rule constant for specifying a non-zero rule for
determining the interior of a path. |
public int SEG_ARCTO
The segment type constant for an elliptical arc. This consists of
Seven values [rx, ry, angle, largeArcFlag, sweepFlag, x, y].
rx, ry are the radious of the ellipse.
angle is angle of the x axis of the ellipse.
largeArcFlag is zero if the smaller of the two arcs are to be used.
sweepFlag is zero if the 'left' branch is taken one otherwise.
x and y are the destination for the ellipse.
public int SEG_CLOSE
The segment type constant that specifies that the preceding
subpath should be closed by appending a line segment back to
the point corresponding to the most recent SEG_MOVETO.
public int SEG_CUBICTO
The segment type constant for the set of 3 points that specify
a cubic parametric curve to be drawn from the most recently
specified point. The curve is interpolated by solving the
parametric control equation in the range (t=[0..1]) using the
most recently specified (current) point (CP), the first control
point (P1), the second control point (P2), and the final
interpolated control point (P3).
public int SEG_LINETO
The segment type constant for a point that specifies the end
point of a line to be drawn from the most recently specified
point.
public int SEG_MOVETO
The segment type constant for a point that specifies the end
point of a line to be drawn from the most recently specified
point.
public int SEG_QUADTO
The segment type constant for the pair of points that specify a
quadratic parametric curve to be drawn from the most recently
specified point. The curve is interpolated by solving the
parametric control equation in the range (t=[0..1]) using the
most recently specified (current) point (CP), the first control
point (P1), and the final interpolated control point (P2).
public int WIND_EVEN_ODD
The winding rule constant for specifying an even-odd rule for
determining the interior of a path. The even-odd rule specifies
that a point lies inside the path if a ray drawn in any
direction from that point to infinity is crossed by path
segments an odd number of times.
public int WIND_NON_ZERO
The winding rule constant for specifying a non-zero rule for
determining the interior of a path. The non-zero rule specifies
that a point lies inside the path if a ray drawn in any
direction from that point to infinity is crossed by path
segments a different number of times in the counter-clockwise
direction than the clockwise direction.
public int currentSegment()
public int currentSegment(double[] coords)
public int currentSegment(float[] coords)
public int getWindingRule()
public boolean isDone()
public void next()
Copyright B) 2008 Apache Software Foundation. All Rights Reserved.