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jplot
Class DataFile  

java.lang.Object
  jplot.DataFile

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public class DataFile

extends java.lang.Object

This class contains all the info specific for one datafile. The PlotPanel provides the columns to-be-plotted for a specific file, with a line-style class for each column. This class keeps track of this information.

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Field Summary
private  java.lang.String	abbreviatedFilename
private  java.util.Vector	columns
private  java.io.File	file
private  java.lang.String	filenameWithoutPath
private  GraphPars	gp
private  int	graphType
private  int	index
private  java.util.Vector	items
private  int	maxLen
private  java.util.Vector	styles
private  int	xColumn

 

Constructor Summary
(package private)	DataFile(java.io.File file, int index, GraphPars gp)           Builds the class from a filename.

 

Method Summary
void	addColumn(int columnIndex, LinePars lp)           adds a column to the vector of columns.
void	addItem(java.lang.String item)           Adds an item to the vector.
private  void	addLabel(GraphLabel gl, java.util.Vector newLabels)
private  void	delCol(java.lang.Integer index)
java.lang.String	getAbbreviatedFilename()           Return the abbreviated filename.
java.lang.String	getColumnName(int i)           Returns the name of one of the columns present here.
boolean	getDataArrays(java.util.Vector dataArrays, int type)           Reads the current file and returns the data arrays.
java.io.File	getFile()           Return the file
java.lang.String	getFilenameWithoutPath()           Return the filename with the preceeding path stripped off.
int	getGraphType()
java.lang.String	getItem(int i)
private  java.lang.String	getLabel(java.util.StringTokenizer st)
java.lang.String	getLegend(int index)
LinePars	getLinePars(int index)           returns the linestyle of one of the vector items.
java.lang.String	getName()           Return the filename as such.
int	getNumberOfColumns()           Return the number of columns (selected items)
int	getNumberOfItems()
int	getXColumn()           returns the index of the column used for the X-axis
int	getYColumn(int i)           returns the index of the column used for the Y-axis
int	isSelected(int index)           Checks whether the argument is a column selected for output.
boolean	loadColumnNames(java.util.Vector labels)           Reads the datafile for data.
void	removeColumn(int columnIndex)           remove a column from the vector of columns.
void	setIndex(int i)           Sets the current datafile index to another value.
void	setLinePars(int index, LinePars lp)           sets the linestyle of one of the vector items.
void	setLinePars(LinePars lp)           sets the linestyle of all the vector items.
void	setXColumn(int columnIndex)           sets the index of the column used for the X-axis

 

Methods inherited from class java.lang.Object

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

 

Field Detail

file

private java.io.File file

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items

private java.util.Vector items

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columns

private java.util.Vector columns

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xColumn

private int xColumn

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styles

private java.util.Vector styles

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abbreviatedFilename

private java.lang.String abbreviatedFilename

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filenameWithoutPath

private java.lang.String filenameWithoutPath

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maxLen

private final int maxLen

See Also:

Constant Field Values

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index

private int index

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graphType

private int graphType

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gp

private GraphPars gp

Constructor Detail

DataFile

DataFile(java.io.File file,
         int index,
         GraphPars gp)

Builds the class from a filename. As soon as the datafile is build, read the header of the file and make a list of all the available columns.

Method Detail

loadColumnNames

public boolean loadColumnNames(java.util.Vector labels)

Reads the datafile for data. The data is put in a specific purpose DataArray object, which contains x- and y values. Note that all blank lines or lines starting with '#' are skipped. One exception: lines starting with '# column 1:' etc. are supposed to provide the name of the column, hence '# column 1: nodes' means that column 1 has the name 'nodes', which will be used by this program in order to easily select columns. If the list of column names existed already, and if the new list of names is identical, return true. Else delete the current selection and return false.

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getLabel

private java.lang.String getLabel(java.util.StringTokenizer st)

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addLabel

private void addLabel(GraphLabel gl,
                      java.util.Vector newLabels)

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getNumberOfItems

public int getNumberOfItems()

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getItem

public java.lang.String getItem(int i)

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addItem

public void addItem(java.lang.String item)

Adds an item to the vector.

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delCol

private void delCol(java.lang.Integer index)

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addColumn

public void addColumn(int columnIndex,
                      LinePars lp)

adds a column to the vector of columns. The column is added even if the column index is already selected (hence selecting several times the same column is allowed). This is useful if the user wants to plot the same data several times but in a different way. (histogram + lines, for example).

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setXColumn

public void setXColumn(int columnIndex)

sets the index of the column used for the X-axis

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getXColumn

public int getXColumn()

returns the index of the column used for the X-axis

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getYColumn

public int getYColumn(int i)

returns the index of the column used for the Y-axis

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getLinePars

public LinePars getLinePars(int index)

returns the linestyle of one of the vector items.

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setLinePars

public void setLinePars(int index,
                        LinePars lp)

sets the linestyle of one of the vector items.

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setLinePars

public void setLinePars(LinePars lp)

sets the linestyle of all the vector items.

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getLegend

public java.lang.String getLegend(int index)

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removeColumn

public void removeColumn(int columnIndex)

remove a column from the vector of columns.

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getNumberOfColumns

public int getNumberOfColumns()

Return the number of columns (selected items)

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getFile

public java.io.File getFile()

Return the file

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getAbbreviatedFilename

public java.lang.String getAbbreviatedFilename()

Return the abbreviated filename. This name is different from the file itselves if it exceeds a a certain number of characters (about 45). Otherwise, the name is too long to fit in decent textboxes...

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getFilenameWithoutPath

public java.lang.String getFilenameWithoutPath()

Return the filename with the preceeding path stripped off.

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getName

public java.lang.String getName()

Return the filename as such.

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isSelected

public int isSelected(int index)

Checks whether the argument is a column selected for output.

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getColumnName

public java.lang.String getColumnName(int i)

Returns the name of one of the columns present here.

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setIndex

public void setIndex(int i)

Sets the current datafile index to another value.

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getGraphType

public int getGraphType()

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getDataArrays

public boolean getDataArrays(java.util.Vector dataArrays,
                             int type)

Reads the current file and returns the data arrays.

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Home >> All >> [ jplot overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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