Passes the visitor through this expression and any sub expressions @param v the ExpressionVisitor

Add a listener to this Expression. @param lstnr the expression listener to add

Get the number of columns maintained by the backing table. @return the number of columns / data fields.

Evaluate the Expression on the given input Tuple. @param t the input Tuple @return the Expression return value, as a float

Get the parent node of this node in a tree structure. @return this node's parent node, or null if there is none.

Set the data value of the given field with a <code>String</code>. @param field the data field to set @param val the value to set @see #canSetString(St

Add the data fields of the given Schema to the Tuples in this TupleSet. If this TupleSet contains heterogeneous Tuples (i.e., those from different sou

Get the data field name of the column at the given index. @param col the column index to look up @return the data field name of the given column index

Get the display at the given list index. Displays are numbered by the order in which they are added to this visualization. @param idx the list index @

Perform an initial indexing of a data column.

Get an iterator over all the items contained in this aggregate. @return an iterator over the items in this aggregate

Internal method for checking the validity of a node. @param n the Node to check for validity @param throwException true if this

Set the background color of this toggle group. @see java.awt.Component#setBackground(java.awt.Color)

为可视化设置渲染工厂，该工厂主要负责为可视化组件创建实例 Set the RendererFactory used by this Visualization. The RendererFactory is responsible for providing the Renderer instanc

Transform the clip contents. A new clip region will be created which is the bounding box of the transformed region. @param at the affine transform

Returns an instance of this comparator. @return a DefaultLiteralComparator

Get the number of tuples in this set. @return the tuple count

Returns the bounds in which the layout should be computed. If the bounds have been explicitly set, that value is used. Otherwise, an attempt is made t

Get the Tuple instance providing object-oriented access to the given table row. @param row the table row @return the Tuple for the given table row

Sets if the item is fixed in its position. @param value true to fix the item, false otherwise @see #FIXED

@see javax.swing.JComponent#setPreferredSize(java.awt.Dimension)

Evaluate the Expression on the given input Tuple. @param t the input Tuple @return the Expression return value, as a boolean

Set the data value at the specified row as a String @param val the value to set @param row the row at which to set the value @throws DataTypeException

Add an edge to the graph. Both multiple edges between two nodes and edges from a node to itself are allowed. @param s the source node id @

Notifies all registered listeners of a column UPDATE event

Get a prefuse configuration property. @param key the name of the property to lookup @return the property value, or null if the key is not found

Get the data value at the specified row as an integer @param row the row from which to retrieve the value @return the data value as an integer @throws

Get the data value at the specified row as a String @param row the row from which to retrieve the value @return the data value as a String @throws Dat

Get the label text. @return the label text

Remove a listener to this Expression. @param lstnr the expression listener to remove

Set the alpha component of the given color. @param c the color code @param alpha the alpha value to set @return the new color with updated alpha chann

Add a new clause. @param p the Predicate clause to add

Cancels this activity, if scheduled. This will stop a running activity, and will remove the activity from the ActivityManager's schedule.

Reports damage to the Display within in the specified region. @param region the damaged region, in absolute coordinates

Get the number of tree children of this node. @return the number of child nodes

Get the current font for the item. The font is used as the default typeface for drawing text for this item. @return the current font value @see #FONT

Returns the number of rows in this data column @return the number of rows

Returns the schema for this tuple's data. @return the Tuple Schema

Returns an iterator over the elements in this list in proper sequence. <p>The returned iterator provides a snapshot of the state of the list when the

Set the data value of the given field with a <code>boolean</code>. @param field the data field to set @param val the value to set @see #canSetBoolean(

@see java.lang.Object#toString()

Get an iterator over this node's tree children. @return an iterator over this node's children

@see java.lang.Object#equals(java.lang.Object)

Get the data value at the specified row @param row the row from which to retrieve the value @return the data value

Gets the absolute co-ordinate corresponding to the given screen co-ordinate. @param screen the screen co-ordinate to transform @param abs a reference

Get the data processing Action with the given name. @param name the name of the Action @return the requested Action, or null if the name was not found

Get the ending y-coordinate of this item. @return the ending y-coordinate @see #ENDY

Get the group name for the given parent and child group, simply concatenating them together with a group delimiter in between. @param parent the paren

Evaluate the Expression on the given input Tuple. @param t the input Tuple @return the Expression return value, as a long

Get the Node tuple instance corresponding to a node id. @param n a node id (node table row number) @return the Node instance corresponding

Indicates if the given row number corresponds to a valid table row. @param row the row number to check for validity @return true if the row is valid,

@see java.lang.Object#toString()

<p>Add a new interpolated column to this data schema. This actually adds three columns to the schema: a column for the current value of the field, and

Add a new node to the graph. @return the new Node instance

Add an empty VisualTable to this visualization, using the given data group name. This adds a group of VisualItems that do not have a backing data set,

Fire an expression change.

Get the data value at the specified row as a boolean @param row the row from which to retrieve the value @return the data value as a boolean @throws D

Get a Java Color object for the given red, green, blue, and alpha values as floating point numbers in the range 0-1.0. @param r the red color componen

Get the ending x-coordinate of this item. @return the ending x-coordinate @see #ENDX

Returns the second, or target, node upon which this Edge is incident. @return the source Node

Indicates if a given class type is a primitive numeric one type (one of byte, short, int, long, float, or double). @param type the type to check @retu

Adds Windows2K type 3D lighting effects

Parse an int value from a text string. @param text the text string to parse @return the parsed int value @throws DataParseException if an error occurs

Removes a row from this table. @param row the row to delete @return true if the row was successfully deleted, false if the row was already invalid

Calculates and sets the bounding rectangle for an item. This is called by a VisualItem when it validates its bounds. @param item the item

Determines if the Display uses a higher quality rendering, using anti-aliasing. This causes drawing to be much slower, however, and so is disabled by

Callback to signal that the visitor has just descended a level in the Expression tree.

Fire a Tuple event. @param t the Table on which the event has occurred @param start the first row changed @param end the last row changed @param type

Get the data value at the specified row as a double @param row the row from which to retrieve the value @return the data value as a double @throws Dat

Get the data value at the specified row as a float @param row the row from which to retrieve the value @return the data value as a float @throws DataT

Retrieve the focus data group of the given group name. Only secondary, or focus, groups will be considered. @param group the focus data group @return

Get the data value at the specified row as a long @param row the row from which to retrieve the value @return the data value as a long @throws DataTyp

Get this node's next tree sibling. @return the next sibling, or null if none

Get the current shape value of the item. One of the SHAPE constants included in the {@link prefuse.Constants} class. This value only has an effect if

Returns the Table instance that backs this Tuple, if it exists. @return the backing Table, or null if there is none.

Indicates if a given mouse button is being pressed. @param e the InputEvent to check @param button the mouse button to look for @return true if the bu

The "safe" square root of the input value, handling negative values by simply making them positive and then negating the return value. @param x the in

Set the clip contents, and set the status to valid and in use. @param c the clip whose contents should be copied

Set the foreground color of this toggle group. @see java.awt.Component#setBackground(java.awt.Color)

Set the interactive status of this VisualItem. @param value true for interactive, false for non-interactive @see #INTERACTIVE