IlvDoublePoints (Rogue Wave JViews 9.2 API)

java.lang.Object
- ilog.views.chart.IlvDoublePoints

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

IlvDataPoints
```
public class IlvDoublePoints
extends Object
implements Serializable
```
Holds a set of points with (X, Y) coordinates. This class is used to represent both data points and display points.

Since:

JViews 5.0

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description
`IlvDoublePoints()` Creates an empty object, with no stored value.
`IlvDoublePoints(double x, double y)` Creates a new object that holds a single value pair.
`IlvDoublePoints(int count)` Creates a new object and allocates storage for `count` value pairs.
`IlvDoublePoints(int count, double[] xValues, double[] yValues)` Creates a new object and initializes it with the given values.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(double[] x, double[] y, int count)` Appends the specified values to this object.
`void`	`add(double x, double y)` Appends the specified values to this object.
`void`	`add(IlvDoublePoints pts)` Appends the contents of the specified object.
`void`	`add(int insertIdx, double[] x, double[] y, int count)` Inserts the specified values at the specified index.
`void`	`dispose()` Releases the memory used by this object.
`double`	`getX(int i)` Returns the x-value at the specified index.
`int`	`getXFloor(int i)` Returns the integer coordinate of the x-value at the specified index.
`double[]`	`getXValues()` Returns the array holding the x-values.
`double[]`	`getXValuesClone()` Returns a copy of the x-values array.
`double`	`getY(int i)` Returns the y-value at the specified index.
`int`	`getYFloor(int i)` Returns the integer coordinate of the y-value at the specified index.
`double[]`	`getYValues()` Returns the array holding the y-values.
`double[]`	`getYValuesClone()` Returns a copy of the y-values array.
`void`	`remove(int start, int count)` Removes the specified points.
`void`	`reset()` Resets the cardinal of this object to `0`.
`void`	`set(int idx, double x, double y)` Modifies the coordinates of the point at the specified index.
`void`	`setSize(int count)` Specifies the number of points.
`void`	`setX(int i, double x)` Changes the x-value at the specified index.
`void`	`setY(int i, double y)` Changes the y-value at the specified index.
`int`	`size()` Returns the cardinal of this object.
`void`	`swapXYValues()` Swaps the x-values array and the y-values array.
`String`	`toString()` Returns a string representation of this object.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - IlvDoublePoints
```
public IlvDoublePoints()
```
    Creates an empty object, with no stored value.
    For optimal performance, you should dispose() this object when done with it.
  - IlvDoublePoints
```
public IlvDoublePoints(int count,
                       double[] xValues,
                       double[] yValues)
```
    Creates a new object and initializes it with the given values.
    Note: The specified arrays are not copied.
    For optimal performance, you should dispose() this object when done with it.
  - IlvDoublePoints
```
public IlvDoublePoints(int count)
```
    Creates a new object and allocates storage for count value pairs.
    For optimal performance, you should dispose() this object when done with it.
  - IlvDoublePoints
```
public IlvDoublePoints(double x,
                       double y)
```
    Creates a new object that holds a single value pair.
    For optimal performance, you should dispose() this object when done with it.
- Method Detail
  - dispose
```
public void dispose()
```
    Releases the memory used by this object. Although garbage collection also reclaims this memory, calling this method explicitly allows the application to recycle immediately the storage space, and makes it available for future array allocation.
  - add
```
public void add(double x,
                double y)
```
    Appends the specified values to this object.
    
    Parameters:
    
    x - The new x-value.
    
    y - The new y-value.
  - add
```
public void add(double[] x,
                double[] y,
                int count)
```
    Appends the specified values to this object.
    
    Parameters:
    
    x - the x-values to add.
    
    y - The y-values to add.
    
    count - The number of values to add.
  - add
```
public void add(int insertIdx,
                double[] x,
                double[] y,
                int count)
```
    Inserts the specified values at the specified index.
    
    Parameters:
    
    insertIdx - The insertion index. This index must be less than or equal to the number of values stored in this object.
    
    x - The x-values to insert.
    
    y - The y-values to insert.
    
    count - The number of values to insert.
  - remove
```
public void remove(int start,
                   int count)
```
    Removes the specified points.
    
    Parameters:
    
    start - The index of the first point to remove.
    
    count - The number of points to remove.
  - add
```
public final void add(IlvDoublePoints pts)
```
    Appends the contents of the specified object.
  - getX
```
public final double getX(int i)
```
    Returns the x-value at the specified index.
  - getXFloor
```
public final int getXFloor(int i)
```
    Returns the integer coordinate of the x-value at the specified index.
  - getY
```
public final double getY(int i)
```
    Returns the y-value at the specified index.
  - getYFloor
```
public final int getYFloor(int i)
```
    Returns the integer coordinate of the y-value at the specified index.
  - setX
```
public final void setX(int i,
                       double x)
```
    Changes the x-value at the specified index.
  - setY
```
public final void setY(int i,
                       double y)
```
    Changes the y-value at the specified index.
  - set
```
public final void set(int idx,
                      double x,
                      double y)
```
    Modifies the coordinates of the point at the specified index.
    
    Parameters:
    
    idx - The index of the considered point.
    
    x - The new x-value.
    
    y - The new y-value.
  - size
```
public final int size()
```
    Returns the cardinal of this object.
  - getXValues
```
public final double[] getXValues()
```
    Returns the array holding the x-values. The returned array is a direct reference to the internal array used by this object, which gives an efficient access to the stored values. This method is more intended to provide a read access than a write access. Indeed, adding values directly into this array does not modify the cardinal of the IlvDoublePoints object. In order to add new data, use the appropriate add method.
    
    See Also:
    
    add(double, double), add(double[], double[], int), add(int, double[], double[], int), add(IlvDoublePoints)
  - getXValuesClone
```
public final double[] getXValuesClone()
```
    Returns a copy of the x-values array.
    
    See Also:
    
    getXValues()
  - getYValues
```
public final double[] getYValues()
```
    Returns the array holding the y-values. The returned array is a direct reference to the internal array used by this object, which gives an efficient access to the stored values. This method is more intended to provide a read access than a write access. Indeed, adding values directly into this array does not modify the cardinal of the IlvDoublePoints object. In order to add new data, use the appropriate add method.
    
    See Also:
    
    add(double, double), add(double[], double[], int), add(int, double[], double[], int), add(IlvDoublePoints)
  - getYValuesClone
```
public final double[] getYValuesClone()
```
    Returns a copy of the y-values array.
    
    See Also:
    
    getYValues()
  - setSize
```
public void setSize(int count)
```
    Specifies the number of points. This method resets the number of points held by the object while keeping the same storage space. The specified size must be less than of equal to the current storage space. The storage space can be known with: getXValues().length.
    
    See Also:
    
    getXValues(), getYValues()
  - swapXYValues
```
public final void swapXYValues()
```
    Swaps the x-values array and the y-values array.
    
    Since:
    
    JViews 8.1
  - reset
```
public void reset()
```
    Resets the cardinal of this object to 0.
  - toString
```
public String toString()
```
    Returns a string representation of this object.
    
    Overrides:
    
    toString in class Object

Class IlvDoublePoints

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

IlvDoublePoints

IlvDoublePoints

IlvDoublePoints

IlvDoublePoints

Method Detail

dispose

add

add

add

remove

add

getX

getXFloor

getY

getYFloor

setX

setY

set

size

getXValues

getXValuesClone

getYValues

getYValuesClone

setSize

swapXYValues

reset

toString