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ObjectPolygonHandler
public class PolygonHandler
Wrapper for a Shapefile polygon.
modules/plugin/shapefile (gt-shapefile.jar)
Constructor Summary | |
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PolygonHandler(GeometryFactory gf)
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PolygonHandler(ShapeType type,
GeometryFactory gf)
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Method Summary | |
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static int |
computeOrientation(CoordinateSequence cs,
int p1,
int p2,
int q)
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int |
getLength(Object geometry)
Get the length of the given geometry Object in bytes not 16-bit words. |
ShapeType |
getShapeType()
Get the ShapeType of this handler. |
static boolean |
isCCW(CoordinateSequence ring)
Computes whether a ring defined by an array of Coordinate s is
oriented counter-clockwise. |
Object |
read(ByteBuffer buffer,
ShapeType type)
Read a geometry from the ByteBuffer. |
void |
write(ByteBuffer buffer,
Object geometry)
Write the geometry into the ByteBuffer. |
Methods inherited from class Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PolygonHandler(GeometryFactory gf)
public PolygonHandler(ShapeType type, GeometryFactory gf) throws ShapefileException
ShapefileException
Method Detail |
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public ShapeType getShapeType()
ShapeHandler
getShapeType
in interface ShapeHandler
public int getLength(Object geometry)
ShapeHandler
getLength
in interface ShapeHandler
geometry
- The geometry to analyze.
public Object read(ByteBuffer buffer, ShapeType type)
ShapeHandler
read
in interface ShapeHandler
buffer
- The ByteBuffer to read from.
public void write(ByteBuffer buffer, Object geometry)
ShapeHandler
write
in interface ShapeHandler
buffer
- The ByteBuffer to write to.geometry
- The geometry to write.public static boolean isCCW(CoordinateSequence ring)
Coordinate
s is
oriented counter-clockwise.
ring
- an array of Coordinates forming a ring
public static int computeOrientation(CoordinateSequence cs, int p1, int p2, int q)
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