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org.apache.batik.ext.awt.geom
Interface ExtendedPathIterator
- All Known Implementing Classes:
- ExtendedGeneralPath.EPI, ShapeExtender.EPIWrap
- 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.
- Version:
- $Id: ExtendedPathIterator.java,v 1.4 2004/08/18 07:13:47 vhardy Exp $
| Field Summary | |
static int |
SEG_ARCTO
The segment type constant for an elliptical arc. |
static 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. |
static 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. |
static 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. |
static 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. |
static 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. |
static int |
WIND_EVEN_ODD
The winding rule constant for specifying an even-odd rule for determining the interior of a path. |
static int |
WIND_NON_ZERO
The winding rule constant for specifying a non-zero rule for determining the interior of a path. |
| Method Summary | |
int |
currentSegment(double[] coords)
|
int |
currentSegment(float[] coords)
|
int |
getWindingRule()
|
boolean |
isDone()
|
void |
next()
|
| Field Detail |
SEG_CLOSE
public static final 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.
- See Also:
- Constant Field Values
SEG_MOVETO
public static final 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.
- See Also:
- Constant Field Values
SEG_LINETO
public static final 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.
- See Also:
- Constant Field Values
SEG_QUADTO
public static final 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).
- See Also:
- Constant Field Values
SEG_CUBICTO
public static final 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).
- See Also:
- Constant Field Values
SEG_ARCTO
public static final 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.
- See Also:
- Constant Field Values
WIND_EVEN_ODD
public static final 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.
- See Also:
- Constant Field Values
WIND_NON_ZERO
public static final 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.
- See Also:
- Constant Field Values
| Method Detail |
currentSegment
public int currentSegment(double[] coords)
currentSegment
public int currentSegment(float[] coords)
getWindingRule
public int getWindingRule()
isDone
public boolean isDone()
next
public void next()
|
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DETAIL: FIELD | CONSTR | METHOD | ||||||||