Class LineItem

Encapsulates a curve type that is displayed as a line and/or a set of symbols at each point.

Inheritance

Object

CurveItem

LineItem

StickItem

Implements

ICloneable

ISerializable

Inherited Members

CurveItem._isX2Axis

CurveItem._isY2Axis

CurveItem._yAxisIndex

CurveItem._isVisible

CurveItem._isSelected

CurveItem._isSelectable

CurveItem._isOverrideOrdinal

CurveItem._points

CurveItem.Tag

CurveItem.schema

CurveItem.Label

CurveItem.Color

CurveItem.IsVisible

CurveItem.IsSelected

CurveItem.IsSelectable

CurveItem.IsOverrideOrdinal

CurveItem.IsX2Axis

CurveItem.IsY2Axis

CurveItem.YAxisIndex

CurveItem.IsBar

CurveItem.IsPie

CurveItem.IsLine

CurveItem.NPts

CurveItem.Points

CurveItem.Item[Int32]

CurveItem.Link

CurveItem.AddPoint(Double, Double)

CurveItem.AddPoint(PointPair)

CurveItem.Clear()

CurveItem.RemovePoint(Int32)

CurveItem.GetXAxis(GraphPane)

CurveItem.GetYAxis(GraphPane)

CurveItem.GetYAxisIndex(GraphPane)

CurveItem.MakeUnique()

CurveItem.GetRange(Double, Double, Double, Double, Boolean, Boolean, GraphPane)

CurveItem.BaseAxis(GraphPane)

CurveItem.ValueAxis(GraphPane)

CurveItem.GetBarWidth(GraphPane)

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: ZedGraph

Assembly: ZedGraph.dll

Syntax

[Serializable]
public class LineItem : CurveItem, ICloneable, ISerializable

Constructors

LineItem(SerializationInfo, StreamingContext)

Constructor for deserializing objects

Declaration

protected LineItem(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
SerializationInfo	info	A SerializationInfo instance that defines the serialized data
StreamingContext	context	A StreamingContext instance that contains the serialized data

LineItem(String)

Create a new LineItem, specifying only the legend Label.

Declaration

public LineItem(string label)

Parameters

Type	Name	Description
String	label	The _label that will appear in the legend.

LineItem(String, Double[], Double[], Color, SymbolType)

Create a new LineItem using the specified properties.

Declaration

public LineItem(string label, double[] x, double[] y, Color color, SymbolType symbolType)

Parameters

Type	Name	Description
String	label	The _label that will appear in the legend.
Double[]	x	An array of double precision values that define the independent (X axis) values for this curve
Double[]	y	An array of double precision values that define the dependent (Y axis) values for this curve
Color	color	A Color value that will be applied to the Line and Symbol properties.
SymbolType	symbolType	A SymbolType enum specifying the type of symbol to use for this LineItem. Use None to hide the symbols.

LineItem(String, Double[], Double[], Color, SymbolType, Single)

Create a new LineItem using the specified properties.

Declaration

public LineItem(string label, double[] x, double[] y, Color color, SymbolType symbolType, float lineWidth)

Parameters

Type	Name	Description
String	label	The _label that will appear in the legend.
Double[]	x	An array of double precision values that define the independent (X axis) values for this curve
Double[]	y	An array of double precision values that define the dependent (Y axis) values for this curve
Color	color	A Color value that will be applied to the Line and Symbol properties.
SymbolType	symbolType	A SymbolType enum specifying the type of symbol to use for this LineItem. Use None to hide the symbols.
Single	lineWidth	The width (in points) to be used for the Line. This width is scaled based on CalcScaleFactor(). Use a value of zero to hide the line (see IsVisible).

LineItem(String, IPointList, Color, SymbolType)

Create a new LineItem using the specified properties.

Declaration

public LineItem(string label, IPointList points, Color color, SymbolType symbolType)

Parameters

Type	Name	Description
String	label	The _label that will appear in the legend.
IPointList	points	A IPointList of double precision value pairs that define the X and Y values for this curve
Color	color	A Color value that will be applied to the Line and Symbol properties.
SymbolType	symbolType	A SymbolType enum specifying the type of symbol to use for this LineItem. Use None to hide the symbols.

LineItem(String, IPointList, Color, SymbolType, Single)

Create a new LineItem using the specified properties.

Declaration

public LineItem(string label, IPointList points, Color color, SymbolType symbolType, float lineWidth)

Parameters

Type	Name	Description
String	label	The _label that will appear in the legend.
IPointList	points	A IPointList of double precision value pairs that define the X and Y values for this curve
Color	color	A Color value that will be applied to the Line and Symbol properties.
SymbolType	symbolType	A SymbolType enum specifying the type of symbol to use for this LineItem. Use None to hide the symbols.
Single	lineWidth	The width (in points) to be used for the Line. This width is scaled based on CalcScaleFactor(). Use a value of zero to hide the line (see IsVisible).

LineItem(LineItem)

The Copy Constructor

Declaration

public LineItem(LineItem rhs)

Parameters

Type	Name	Description
LineItem	rhs	The LineItem object from which to copy

Fields

_line

Private field that stores a reference to the Line class defined for this LineItem. Use the public property Line to access this value.

Declaration

[CLSCompliant(false)]
protected Line _line

Field Value

Type	Description
Line

_symbol

Private field that stores a reference to the Symbol class defined for this LineItem. Use the public property Symbol to access this value.

Declaration

[CLSCompliant(false)]
protected Symbol _symbol

Field Value

Type	Description
Symbol

schema2

Current schema value that defines the version of the serialized file

Declaration

public const int schema2 = 10

Field Value

Type	Description
Int32

Properties

Line

Gets or sets the Line class instance defined for this LineItem.

Declaration

public Line Line { get; set; }

Property Value

Type	Description
Line

Symbol

Gets or sets the Symbol class instance defined for this LineItem.

Declaration

public Symbol Symbol { get; set; }

Property Value

Type	Description
Symbol

Methods

Clone()

Typesafe, deep-copy clone method.

Declaration

public LineItem Clone()

Returns

Type	Description
LineItem	A new, independent copy of this class

Draw(Graphics, GraphPane, Int32, Single)

Do all rendering associated with this LineItem to the specified Graphics device. This method is normally only called by the Draw method of the parent CurveList collection object.

Declaration

public override void Draw(Graphics g, GraphPane pane, int pos, float scaleFactor)

Parameters

Type	Name	Description
Graphics	g	A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
GraphPane	pane	A reference to the GraphPane object that is the parent or owner of this object.
Int32	pos	The ordinal position of the current Bar curve.
Single	scaleFactor	The scaling factor to be used for rendering objects. This is calculated and passed down by the parent GraphPane object using the CalcScaleFactor() method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.

Overrides

CurveItem.Draw(Graphics, GraphPane, Int32, Single)

DrawLegendKey(Graphics, GraphPane, RectangleF, Single)

Draw a legend key entry for this LineItem at the specified location

Declaration

public override void DrawLegendKey(Graphics g, GraphPane pane, RectangleF rect, float scaleFactor)

Parameters

Type	Name	Description
Graphics	g	A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
GraphPane	pane	A reference to the GraphPane object that is the parent or owner of this object.
RectangleF	rect	The RectangleF struct that specifies the location for the legend key
Single	scaleFactor	The scaling factor to be used for rendering objects. This is calculated and passed down by the parent GraphPane object using the CalcScaleFactor() method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.

Overrides

CurveItem.DrawLegendKey(Graphics, GraphPane, RectangleF, Single)

GetCoords(GraphPane, Int32, out String)

Determine the coords for the rectangle associated with a specified point for this CurveItem

Declaration

public override bool GetCoords(GraphPane pane, int i, out string coords)

Parameters

Type	Name	Description
GraphPane	pane	The GraphPane to which this curve belongs
Int32	i	The index of the point of interest
String	coords	A list of coordinates that represents the "rect" for this point (used in an html AREA tag)

Returns

Type	Description
Boolean	true if it's a valid point, false otherwise

Overrides

CurveItem.GetCoords(GraphPane, Int32, out String)

GetObjectData(SerializationInfo, StreamingContext)

Populates a SerializationInfo instance with the data needed to serialize the target object

Declaration

[SecurityPermission(SecurityAction.Demand, SerializationFormatter = true)]
public override void GetObjectData(SerializationInfo info, StreamingContext context)

Parameters

Type	Name	Description
SerializationInfo	info	A SerializationInfo instance that defines the serialized data
StreamingContext	context	A StreamingContext instance that contains the serialized data

Overrides

CurveItem.GetObjectData(SerializationInfo, StreamingContext)

MakeUnique(ColorSymbolRotator)

Loads some pseudo unique colors/symbols into this LineItem. This is mainly useful for differentiating a set of new LineItems without having to pick your own colors/symbols. MakeUnique(ColorSymbolRotator)

Declaration

public override void MakeUnique(ColorSymbolRotator rotator)

Parameters

Type	Name	Description
ColorSymbolRotator	rotator	The ColorSymbolRotator that is used to pick the color and symbol for this method call.

Overrides

CurveItem.MakeUnique(ColorSymbolRotator)

Explicit Interface Implementations

ICloneable.Clone()

Implement the ICloneable interface in a typesafe manner by just calling the typed version of Clone()

Declaration

object ICloneable.Clone()

Returns

Type	Description
Object	A deep copy of this object

Implements

System.ICloneable

System.Runtime.Serialization.ISerializable