| java.lang.Object
 org.geotools.geometry.jts.LiteShape
| LiteShape | | public class LiteShape implements Shape,Cloneable(Code) | | A thin wrapper that adapts a JTS geometry to the Shape interface so that the
geometry can be used by java2d without coordinate cloning
author:
Andrea Aime
version:
$Id: LiteShape.java 25075 2007-04-09 19:20:46Z desruisseaux $ |
| Constructor Summary | |
| public | LiteShape(Geometry geom, AffineTransform at, boolean generalize, double maxDistance)
Creates a new LiteShape object. | | public | LiteShape(Geometry geom, AffineTransform at, boolean generalize)
Creates a new LiteShape object. |
| Method Summary | |
| public boolean | contains(Rectangle2D r)
Tests if the interior of the Shape entirely contains the
specified Rectangle2D. | | public boolean | contains(Point2D p)
Tests if a specified
Point2D is inside the boundary of the
Shape. | | public boolean | contains(double x, double y)
Tests if the specified coordinates are inside the boundary of the
Shape. | | public boolean | contains(double x, double y, double w, double h)
Tests if the interior of the Shape entirely contains the
specified rectangular area. | | public AffineTransform | getAffineTransform()
| | public Rectangle | getBounds()
Returns an integer
Rectangle that completely encloses the
Shape. | | public Rectangle2D | getBounds2D()
Returns a high precision and more accurate bounding box of the
Shape than the getBounds method. | | public Geometry | getGeometry()
| | public PathIterator | getPathIterator(AffineTransform at)
Returns an iterator object that iterates along the Shape
boundary and provides access to the geometry of the Shape
outline. | | public PathIterator | getPathIterator(AffineTransform at, double flatness)
Returns an iterator object that iterates along the Shape
boundary and provides access to a flattened view of the
Shape outline geometry.
Only SEG_MOVETO, SEG_LINETO, and SEG_CLOSE point types are returned by
the iterator.
If an optional AffineTransform is specified, the
coordinates returned in the iteration are transformed accordingly.
The amount of subdivision of the curved segments is controlled by the
flatness parameter, which specifies the maximum distance
that any point on the unflattened transformed curve can deviate from
the returned flattened path segments. | | public boolean | intersects(Rectangle2D r)
Tests if the interior of the Shape intersects the interior
of a specified Rectangle2D. | | public boolean | intersects(double x, double y, double w, double h)
Tests if the interior of the Shape intersects the interior
of a specified rectangular area. | | public void | setGeometry(Geometry g)
Sets the geometry contained in this lite shape. |
| LiteShape | | public LiteShape(Geometry geom, AffineTransform at, boolean generalize, double maxDistance)(Code) | | Creates a new LiteShape object.
Parameters:
geom - - the wrapped geometry
Parameters:
at - - the transformation applied to the geometry in order to get to the shape points
Parameters:
generalize - - set to true if the geometry need to be generalizedduring rendering
Parameters:
maxDistance - - distance used in the generalization process |
| LiteShape | | public LiteShape(Geometry geom, AffineTransform at, boolean generalize)(Code) | | Creates a new LiteShape object.
Parameters:
geom - - the wrapped geometry
Parameters:
at - - the transformation applied to the geometry in order to get to the shape points
Parameters:
generalize - - set to true if the geometry need to be generalizedduring rendering |
| contains | | public boolean contains(Rectangle2D r)(Code) | | Tests if the interior of the Shape entirely contains the
specified Rectangle2D. This method might conservatively
return false when:
-
the
intersect method returns true and
-
the calculations to determine whether or not the
Shape
entirely contains the Rectangle2D are prohibitively
expensive.
This means that this method might return false even though
the Shape contains the Rectangle2D. The
Area class can be used to perform more accurate
computations of geometric intersection for any Shape
object if a more precise answer is required.
Parameters:
r - The specified Rectangle2D true if the interior of the Shapeentirely contains the Rectangle2D;false otherwise or, if the Shapecontains the Rectangle2D and theintersects method returns true andthe containment calculations would be too expensive to perform.
See Also: LiteShape.contains(double,double,double,double) |
| contains | | public boolean contains(Point2D p)(Code) | | Tests if a specified
Point2D is inside the boundary of the
Shape.
Parameters:
p - a specified Point2D true if the specified Point2D isinside the boundary of the Shape;false otherwise. |
| contains | | public boolean contains(double x, double y)(Code) | | Tests if the specified coordinates are inside the boundary of the
Shape.
Parameters:
x - the specified coordinates, x value
Parameters:
y - the specified coordinates, y value true if the specified coordinates are inside theShape boundary; false otherwise. |
| contains | | public boolean contains(double x, double y, double w, double h)(Code) | | Tests if the interior of the Shape entirely contains the
specified rectangular area. All coordinates that lie inside the
rectangular area must lie within the Shape for the entire
rectanglar area to be considered contained within the
Shape.
This method might conservatively return false when:
-
the
intersect method returns true and
-
the calculations to determine whether or not the
Shape
entirely contains the rectangular area are prohibitively expensive.
This means that this method might return false even though
the Shape contains the rectangular area. The
Area class can be used to perform more accurate
computations of geometric intersection for any Shape
object if a more precise answer is required.
Parameters:
x - the coordinates of the specified rectangular area, x value
Parameters:
y - the coordinates of the specified rectangular area, y value
Parameters:
w - the width of the specified rectangular area
Parameters:
h - the height of the specified rectangular area true if the interior of the Shapeentirely contains the specified rectangular area;false otherwise or, if the Shapecontains the rectangular area and the intersectsmethod returns true and the containmentcalculations would be too expensive to perform.
See Also: java.awt.geom.Area
See Also: LiteShape.intersects |
| getAffineTransform | | public AffineTransform getAffineTransform()(Code) | | Returns the affine transform for this lite shape
|
| getBounds | | public Rectangle getBounds()(Code) | | Returns an integer
Rectangle that completely encloses the
Shape. Note that there is no guarantee that the returned
Rectangle is the smallest bounding box that encloses the
Shape, only that the Shape lies entirely
within the indicated Rectangle. The returned
Rectangle might also fail to completely enclose the
Shape if the Shape overflows the limited
range of the integer data type. The getBounds2D method
generally returns a tighter bounding box due to its greater flexibility
in representation.
an integer Rectangle that completely encloses theShape.
See Also: LiteShape.getBounds2D |
| getBounds2D | | public Rectangle2D getBounds2D()(Code) | | Returns a high precision and more accurate bounding box of the
Shape than the getBounds method. Note that
there is no guarantee that the returned
Rectangle2D is the
smallest bounding box that encloses the Shape, only that
the Shape lies entirely within the indicated
Rectangle2D. The bounding box returned by this method is
usually tighter than that returned by the getBounds method
and never fails due to overflow problems since the return value can be
an instance of the Rectangle2D that uses double precision
values to store the dimensions.
an instance of Rectangle2D that is a high-precisionbounding box of the Shape.
See Also: LiteShape.getBounds |
| getGeometry | | public Geometry getGeometry()(Code) | | |
| getPathIterator | | public PathIterator getPathIterator(AffineTransform at)(Code) | | Returns an iterator object that iterates along the Shape
boundary and provides access to the geometry of the Shape
outline. If an optional
AffineTransform is specified, the
coordinates returned in the iteration are transformed accordingly.
Each call to this method returns a fresh PathIterator
object that traverses the geometry of the Shape object
independently from any other PathIterator objects in use
at the same time.
It is recommended, but not guaranteed, that objects implementing the
Shape interface isolate iterations that are in process
from any changes that might occur to the original object's geometry
during such iterations.
Before using a particular implementation of the Shape
interface in more than one thread simultaneously, refer to its
documentation to verify that it guarantees that iterations are isolated
from modifications.
Parameters:
at - an optional AffineTransform to be applied to thecoordinates as they are returned in the iteration, ornull if untransformed coordinates are desired a new PathIterator object, which independentlytraverses the geometry of the Shape. |
| getPathIterator | | public PathIterator getPathIterator(AffineTransform at, double flatness)(Code) | | Returns an iterator object that iterates along the Shape
boundary and provides access to a flattened view of the
Shape outline geometry.
Only SEG_MOVETO, SEG_LINETO, and SEG_CLOSE point types are returned by
the iterator.
If an optional AffineTransform is specified, the
coordinates returned in the iteration are transformed accordingly.
The amount of subdivision of the curved segments is controlled by the
flatness parameter, which specifies the maximum distance
that any point on the unflattened transformed curve can deviate from
the returned flattened path segments. Note that a limit on the accuracy
of the flattened path might be silently imposed, causing very small
flattening parameters to be treated as larger values. This limit, if
there is one, is defined by the particular implementation that is used.
Each call to this method returns a fresh PathIterator
object that traverses the Shape object geometry
independently from any other PathIterator objects in use
at the same time.
It is recommended, but not guaranteed, that objects implementing the
Shape interface isolate iterations that are in process
from any changes that might occur to the original object's geometry
during such iterations.
Before using a particular implementation of this interface in more than
one thread simultaneously, refer to its documentation to verify that it
guarantees that iterations are isolated from modifications.
Parameters:
at - an optional AffineTransform to be applied to thecoordinates as they are returned in the iteration, ornull if untransformed coordinates are desired
Parameters:
flatness - the maximum distance that the line segments used toapproximate the curved segments are allowed to deviate from anypoint on the original curve a new PathIterator that independently traverses theShape geometry. |
| intersects | | public boolean intersects(Rectangle2D r)(Code) | | Tests if the interior of the Shape intersects the interior
of a specified Rectangle2D. This method might
conservatively return true when:
-
there is a high probability that the
Rectangle2D and the
Shape intersect, but
-
the calculations to accurately determine this intersection are
prohibitively expensive.
This means that this method might return true even though
the Rectangle2D does not intersect the Shape.
Parameters:
r - the specified Rectangle2D true if the interior of the Shape andthe interior of the specified Rectangle2Dintersect, or are both highly likely to intersect andintersection calculations would be too expensive toperform; false otherwise.
See Also: LiteShape.intersects(double,double,double,double) |
| intersects | | public boolean intersects(double x, double y, double w, double h)(Code) | | Tests if the interior of the Shape intersects the interior
of a specified rectangular area. The rectangular area is considered to
intersect the Shape if any point is contained in both the
interior of the Shape and the specified rectangular area.
This method might conservatively return true when:
-
there is a high probability that the rectangular area and the
Shape intersect, but
-
the calculations to accurately determine this intersection are
prohibitively expensive.
This means that this method might return true even though
the rectangular area does not intersect the Shape. The
java.awt.geom.Area Area class can be used to perform more
accurate computations of geometric intersection for any
Shape object if a more precise answer is required.
Parameters:
x - the coordinates of the specified rectangular area, x value
Parameters:
y - the coordinates of the specified rectangular area, y value
Parameters:
w - the width of the specified rectangular area
Parameters:
h - the height of the specified rectangular area true if the interior of the Shape andthe interior of the rectangular area intersect, or are bothhighly likely to intersect and intersection calculations wouldbe too expensive to perform; false otherwise.
See Also: java.awt.geom.Area |
| setGeometry | | public void setGeometry(Geometry g)(Code) | | Sets the geometry contained in this lite shape. Convenient to reuse this
object instead of creating it again and again during rendering
Parameters:
g - |
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