cz.cuni.jagrlib.piece
Class VEFDS.Attribute

java.lang.Object
  cz.cuni.jagrlib.piece.VEFDS.Attribute

Enclosing class:

VEFDS

protected class VEFDS.Attribute
extends java.lang.Object

Internal attribute representation.

Since:

0.11

Field Summary

int	context Handle of the context (NULL for shared attributes).
java.lang.Object	data The data[-array] itself.
int	handle Attribute's handle (inverse mapping for VEFDS.attributes).
java.lang.String	ident Identifier (w/o the context-suffix).
int	itemSize Size of one data-array item.
int	size Actual size of the data[-array] in items (-1 for scalar attributes).
int	type Attribute type (ATTR_*).
int	where Entity which the attribute is associated with.

Constructor Summary

VEFDS.Attribute(int _where, int _context, java.lang.String _ident, int _type, int _size)
Initializing constructor - allocates data object.

VEFDS.Attribute(VEFDS.Attribute _from, int _context, java.lang.String _ident)
Initializing constructor - copies data from the given Attribute instance.

Method Summary

protected void	assertDataSize(int _size) Allocates data[-array] of the given size.
void	copyCoordinates(VEFDS.Attribute from, java.util.BitSet set) Copies coordinate data from the Attribute object to another one.
void	deepCopy(VEFDS.Attribute from) Deep-copy of attribute data from another Attribute instance.
int	hashCode() Returns a hash code value for the object.
void	roundCoordinates(VEFDS.Attribute from, TrMatrix tr, java.util.BitSet set) Rounds coordinate data from the Attribute object to another one.
void	transformCoordinates(VEFDS.Attribute from, TrMatrix tr, java.util.BitSet set) Transforms coordinate data from the Attribute object to another one.

Methods inherited from class java.lang.Object

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

Field Detail

handle

public int handle

Attribute's handle (inverse mapping for VEFDS.attributes).

where

public int where

Entity which the attribute is associated with.

context

public int context

Handle of the context (NULL for shared attributes).

ident

public java.lang.String ident

Identifier (w/o the context-suffix).

type

public int type

Attribute type (ATTR_*).

See Also:

Brep.ATTR_OBJECT

itemSize

public int itemSize

Size of one data-array item. Allocation: size * itemSize.

See Also:

size, data, assertDataSize(int)

size

public int size

Actual size of the data[-array] in items (-1 for scalar attributes). Allocation: size * itemSize.

See Also:

itemSize, data, assertDataSize(int)

data

public java.lang.Object data

The data[-array] itself. Allocation: size * itemSize.

See Also:

itemSize, size, assertDataSize(int)

Constructor Detail

VEFDS.Attribute

public VEFDS.Attribute(int _where,
                       int _context,
                       java.lang.String _ident,
                       int _type,
                       int _size)

Initializing constructor - allocates data object.

Parameters:

_where - Entity which the attribute is associated with.

_context - Handle of the context (NULL for shared attributes).

_ident - Identifier (w/o the context-suffix).

_type - Attribute type.

_size - Array length (0 for no allocation, -1 for scalar value).

See Also:

VEFDS.Attribute(VEFDS.Attribute,int,String), assertDataSize(int)

VEFDS.Attribute

public VEFDS.Attribute(VEFDS.Attribute _from,
                       int _context,
                       java.lang.String _ident)

Initializing constructor - copies data from the given Attribute instance.

Parameters:

_from - Instance data shall be copied from.

_context - Handle of the context (NULL for shared attributes).

_ident - Identifier (w/o the context-suffix).

See Also:

VEFDS.Attribute(int,int,String,int,int), assertDataSize(int)

Method Detail

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class java.lang.Object

Returns:

A hash code value for this object.

assertDataSize

protected void assertDataSize(int _size)

Allocates data[-array] of the given size. Grows the array if needed, _size = 0 will de-allocate the data[-array].

Parameters:

_size - Required data size (0 will cause array de-allocation).

See Also:

size, itemSize, data

deepCopy

public void deepCopy(VEFDS.Attribute from)

Deep-copy of attribute data from another Attribute instance.

Parameters:

from - The Attribute which data will be copied from.

copyCoordinates

public void copyCoordinates(VEFDS.Attribute from,
                            java.util.BitSet set)

Copies coordinate data from the Attribute object to another one. Performs rounding and/or homo => Euclid conversions.

Parameters:

from - Source Attribute object.

set - Bit-set of handles to be copied (null for "copy all").

See Also:

roundCoordinates(cz.cuni.jagrlib.piece.VEFDS.Attribute, cz.cuni.jagrlib.TrMatrix, java.util.BitSet), transformCoordinates(cz.cuni.jagrlib.piece.VEFDS.Attribute, cz.cuni.jagrlib.TrMatrix, java.util.BitSet)

roundCoordinates

public void roundCoordinates(VEFDS.Attribute from,
                             TrMatrix tr,
                             java.util.BitSet set)

Rounds coordinate data from the Attribute object to another one. Performs linear planar transformation, rounding and homo => Euclid conversions.

Parameters:

from - Source Attribute object (can be this).

tr - Transformation matrix (only the planar part is used).

set - Bit-set of handles to be rounded (null for "round all").

See Also:

copyCoordinates(cz.cuni.jagrlib.piece.VEFDS.Attribute, java.util.BitSet), transformCoordinates(cz.cuni.jagrlib.piece.VEFDS.Attribute, cz.cuni.jagrlib.TrMatrix, java.util.BitSet)

transformCoordinates

public void transformCoordinates(VEFDS.Attribute from,
                                 TrMatrix tr,
                                 java.util.BitSet set)

Transforms coordinate data from the Attribute object to another one. Performs linear transformation, rounding and/or homo => Euclid conversions.

Parameters:

from - Source Attribute object (can be this).

tr - Transformation matrix.

set - Bit-set of handles to be transformed (null for "transform all").

See Also:

copyCoordinates(cz.cuni.jagrlib.piece.VEFDS.Attribute, java.util.BitSet), roundCoordinates(cz.cuni.jagrlib.piece.VEFDS.Attribute, cz.cuni.jagrlib.TrMatrix, java.util.BitSet)