Class PieItem

A class representing a pie chart object comprised of one or more PieItems.

Inheritance

Object

CurveItem

PieItem

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.MakeUnique(ColorSymbolRotator)

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 PieItem : CurveItem, ICloneable, ISerializable

Constructors

PieItem(Double, Color, Double, String)

Create a new PieItem.

Declaration

public PieItem(double pieValue, Color color, double displacement, string label)

Parameters

Type	Name	Description
Double	pieValue	The value associated with this PieItem instance.
Color	color	The display color for this PieItem instance.
Double	displacement	The amount this PieItem instance will be displaced from the center point.
String	label	Text label for this PieItem instance.

PieItem(Double, Color, Color, Single, Double, String)

Create a new PieItem, providing a gradient fill for the pie color.

Declaration

public PieItem(double pieValue, Color color1, Color color2, float fillAngle, double displacement, string label)

Parameters

Type	Name	Description
Double	pieValue	The value associated with this PieItem instance.
Color	color1	The starting display color for the gradient Fill for this PieItem instance.
Color	color2	The ending display color for the gradient Fill for this PieItem instance.
Single	fillAngle	The angle for the gradient Fill.
Double	displacement	The amount this PieItem instance will be displaced from the center point.
String	label	Text label for this PieItem instance.

PieItem(Double, String)

Create a new PieItem.

Declaration

public PieItem(double pieValue, string label)

Parameters

Type	Name	Description
Double	pieValue	The value associated with this PieItem instance.
String	label	Text label for this PieItem instance

PieItem(SerializationInfo, StreamingContext)

Constructor for deserializing objects

Declaration

protected PieItem(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

PieItem(PieItem)

The Copy Constructor

Declaration

public PieItem(PieItem rhs)

Parameters

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

Fields

schema2

Current schema value that defines the version of the serialized file

Declaration

public const int schema2 = 10

Field Value

Type	Description
Int32

Properties

Border

Gets or sets the Border object so as to be able to modify its properties.

Declaration

public Border Border { get; set; }

Property Value

Type	Description
Border

Displacement

Gets or sets the a value which determines the amount, if any, of this PieItem
displacement.

Declaration

public double Displacement { get; set; }

Property Value

Type	Description
Double

Fill

Gets or sets the Fill object which is used to fill the pie slice with color.

Declaration

public Fill Fill { get; set; }

Property Value

Type	Description
Fill

LabelDetail

Gets or sets the TextObj to be used for displaying this PieItem's label.

Declaration

public TextObj LabelDetail { get; set; }

Property Value

Type	Description
TextObj

LabelType

Gets or sets the PieLabelType to be used in displaying PieItem labels.

Declaration

public PieLabelType LabelType { get; set; }

Property Value

Type	Description
PieLabelType

PercentDecimalDigits

Gets or sets the number of decimal digits to be displayed in a PieItem percent label.

Declaration

public int PercentDecimalDigits { get; set; }

Property Value

Type	Description
Int32

SlicePath

Gets a path representing this PieItem

Declaration

public GraphicsPath SlicePath { get; }

Property Value

Type	Description
GraphicsPath

Value

Gets or sets the value of this PieItem.
Minimum value is 0.

Declaration

public double Value { get; set; }

Property Value

Type	Description
Double

ValueDecimalDigits

Gets or sets the number of decimal digits to be displayed in a PieItem value label.

Declaration

public int ValueDecimalDigits { get; set; }

Property Value

Type	Description
Int32

Methods

CalcPieRect(Graphics, GraphPane, Single, RectangleF)

Calculate the RectangleF that will be used to define the bounding rectangle of the Pie.

Declaration

public static RectangleF CalcPieRect(Graphics g, GraphPane pane, float scaleFactor, RectangleF chartRect)

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.
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.
RectangleF	chartRect	The RectangleF (normally the Rect) that bounds this pie.

Returns

Type	Description
RectangleF

Remarks

This rectangle always lies inside of the Rect, and it is normally a square so that the pie itself is not oval-shaped.

Clone()

Typesafe, deep-copy clone method.

Declaration

public PieItem Clone()

Returns

Type	Description
PieItem	A new, independent copy of this class

DesignLabel(Graphics, GraphPane, RectangleF, Single)

This method collects all the data relative to rendering this PieItem's label.

Declaration

public void DesignLabel(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 graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
RectangleF	rect	The rectangle used for rendering this PieItem
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.

Draw(Graphics, GraphPane, Int32, Single)

Do all rendering associated with this PieItem item 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	Not used for rendering Pies
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)

DrawLabel(Graphics, GraphPane, RectangleF, Single)

Render the label for this PieItem.

Declaration

public void DrawLabel(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 graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
RectangleF	rect	Bounding rectangle for this PieItem.
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.

DrawLegendKey(Graphics, GraphPane, RectangleF, Single)

Draw a legend key entry for this PieItem 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)

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