com.sun.electric.database.geometry
Class GeometryHandler

java.lang.Object
  com.sun.electric.database.geometry.GeometryHandler

Direct Known Subclasses:

PolyMerge, PolyQTree, PolySweepMerge

public abstract class GeometryHandler
extends java.lang.Object

To handle merge operation. Two different classes have been proposed and this interface would handle the implementation

Author:

Gilda Garreton

Nested Class Summary

static class

GeometryHandler.GHMode

Field Summary

static com.sun.electric.database.geometry.GeometryHandler.AreaSort	areaSort
static com.sun.electric.database.geometry.GeometryHandler.ShapeSort	shapeSort

Constructor Summary

GeometryHandler()

GeometryHandler(int initialSize)
Special constructor in case of using huge amount of memory.

Method Summary

void	add(Layer key, java.lang.Object value)
void	addAll(GeometryHandler subMerge, java.awt.geom.AffineTransform tTrans)
static GeometryHandler	createGeometryHandler(GeometryHandler.GHMode mode, int initialSize) Method to create appropiate GeometryHandler depending on the mode.
java.util.Set<Layer>	getKeySet() Access to keySet to create a collection for example.
java.util.Collection<PolyBase>	getObjects(java.lang.Object layer, boolean modified, boolean simple) To retrieve leave elements from internal structure
java.util.Collection<PolyBase.PolyBaseTree>	getTreeObjects(java.lang.Object layer) To retrieve the roots containing all loops from the internal structure.
void	postProcess(boolean merge) Method to perform operations after no more elemenets will be added.
void	subtract(java.lang.Object key, java.lang.Object element) Method to subtract a geometrical object from the merged collection.
void	subtractAll(java.util.TreeMap<Layer,java.util.List<PolyBase>> map) Method to subtract all geometries stored in hash map from corresponding layers

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

shapeSort

public static final com.sun.electric.database.geometry.GeometryHandler.ShapeSort shapeSort

areaSort

public static final com.sun.electric.database.geometry.GeometryHandler.AreaSort areaSort

Constructor Detail

GeometryHandler

public GeometryHandler()

GeometryHandler

public GeometryHandler(int initialSize)

Special constructor in case of using huge amount of memory. E.g. ERC

Parameters:

initialSize -

Method Detail

createGeometryHandler

public static GeometryHandler createGeometryHandler(GeometryHandler.GHMode mode,
                                                    int initialSize)

Method to create appropiate GeometryHandler depending on the mode.

add

public void add(Layer key,
                java.lang.Object value)

addAll

public void addAll(GeometryHandler subMerge,
                   java.awt.geom.AffineTransform tTrans)

subtract

public void subtract(java.lang.Object key,
                     java.lang.Object element)

Method to subtract a geometrical object from the merged collection.

Parameters:

key - the key that this Object sits on.

element - the Object to merge.

subtractAll

public void subtractAll(java.util.TreeMap<Layer,java.util.List<PolyBase>> map)

Method to subtract all geometries stored in hash map from corresponding layers

Parameters:

map -

getKeySet

public java.util.Set<Layer> getKeySet()

Access to keySet to create a collection for example.

getObjects

public java.util.Collection<PolyBase> getObjects(java.lang.Object layer,
                                                 boolean modified,
                                                 boolean simple)

To retrieve leave elements from internal structure

Parameters:

layer - current layer under analysis

modified - to avoid retrieving original polygons

simple - to obtain simple polygons

getTreeObjects

public java.util.Collection<PolyBase.PolyBaseTree> getTreeObjects(java.lang.Object layer)

To retrieve the roots containing all loops from the internal structure.

Parameters:

layer - current layer under analysis

Returns:

list of trees with loop hierarchy

postProcess

public void postProcess(boolean merge)

Method to perform operations after no more elemenets will be added. Valid for PolySweepMerge

Parameters:

merge - true if polygons must be merged otherwise non-overlapping polygons will be generated.