Class ArrowObj

A class that represents a graphic arrow or line object on the graph. A list of ArrowObj objects is maintained by the GraphObjList collection class.

Inheritance
Object
GraphObj
LineObj
ArrowObj
Inherited Members
Namespace: ZedGraph
Assembly: ZedGraph.dll
Syntax
[Serializable]
public class ArrowObj : LineObj, ICloneable, ISerializable

Constructors

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ArrowObj()

Default constructor -- places the ArrowObj at location (0,0) to (1,1). All other values are defaulted.

Declaration
public ArrowObj()
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ArrowObj(Double, Double, Double, Double)

A constructor that allows only the position of the arrow to be pre-specified. All other properties are set to default values

Declaration
public ArrowObj(double x1, double y1, double x2, double y2)
Parameters
Type Name Description
Double x1

The x position of the starting point that defines the ArrowObj. The units of this position are specified by the CoordinateFrame property.
Double y1

The y position of the starting point that defines the ArrowObj. The units of this position are specified by the CoordinateFrame property.
Double x2

The x position of the ending point that defines the ArrowObj. The units of this position are specified by the CoordinateFrame property.
Double y2

The y position of the ending point that defines the ArrowObj. The units of this position are specified by the CoordinateFrame property.
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ArrowObj(Color, Single, Double, Double, Double, Double)

A constructor that allows the position, color, and size of the ArrowObj to be pre-specified.

Declaration
public ArrowObj(Color color, float size, double x1, double y1, double x2, double y2)
Parameters
Type Name Description
Color color

An arbitrary Color specification for the arrow
Single size

The size of the arrowhead, measured in points.
Double x1

The x position of the starting point that defines the arrow. The units of this position are specified by the CoordinateFrame property.
Double y1

The y position of the starting point that defines the arrow. The units of this position are specified by the CoordinateFrame property.
Double x2

The x position of the ending point that defines the arrow. The units of this position are specified by the CoordinateFrame property.
Double y2

The y position of the ending point that defines the arrow. The units of this position are specified by the CoordinateFrame property.
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ArrowObj(SerializationInfo, StreamingContext)

Constructor for deserializing objects

Declaration
protected ArrowObj(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
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ArrowObj(ArrowObj)

The Copy Constructor

Declaration
public ArrowObj(ArrowObj rhs)
Parameters
Type Name Description
ArrowObj rhs

The ArrowObj object from which to copy

Fields

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schema3

Current schema value that defines the version of the serialized file

Declaration
public const int schema3 = 10
Field Value
Type Description
Int32

Properties

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IsArrowHead

Determines whether or not to draw an arrowhead

Declaration
public bool IsArrowHead { get; set; }
Property Value
Type Description
Boolean

true to show the arrowhead, false to show the line segment only
See Also
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Size

The size of the arrowhead.

Declaration
public float Size { get; set; }
Property Value
Type Description
Single

The size is defined in points (1/72 inch)
Remarks

The display of the arrowhead can be enabled or disabled with the IsArrowHead property.

See Also

Methods

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Clone()

Typesafe, deep-copy clone method.

Declaration
public ArrowObj Clone()
Returns
Type Description
ArrowObj

A new, independent copy of this class
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Draw(Graphics, PaneBase, Single)

Render this object to the specified Graphics device.

Declaration
public override void Draw(Graphics g, PaneBase pane, 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.
PaneBase pane

A reference to the PaneBase 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.
Overrides
Remarks

This method is normally only called by the Draw method of the parent GraphObjList collection object.

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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

Explicit Interface Implementations

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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