Class GasGaugeNeedle

A class representing a needle on the GasGuage chart GasGaugeNeedles.

Inheritance
Object
CurveItem
GasGaugeNeedle
Inherited Members
Namespace: ZedGraph
Assembly: ZedGraph.dll
Syntax
[Serializable]
public class GasGaugeNeedle : CurveItem, ICloneable, ISerializable

Constructors

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GasGaugeNeedle(SerializationInfo, StreamingContext)

Constructor for deserializing objects

Declaration
protected GasGaugeNeedle(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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GasGaugeNeedle(String, Double, Color)

Create a new GasGaugeNeedle

Declaration
public GasGaugeNeedle(string label, double val, Color color)
Parameters
Type Name Description
String label

The value associated with this GasGaugeNeedle instance.
Double val

The value of this GasGaugeNeedle.
Color color

The display color for this GasGaugeNeedle instance.
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GasGaugeNeedle(GasGaugeNeedle)

The Copy Constructor

Declaration
public GasGaugeNeedle(GasGaugeNeedle ggn)
Parameters
Type Name Description
GasGaugeNeedle ggn

The GasGaugeNeedle object from which to copy

Fields

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schema2

Current schema value that defines the version of the serialized file

Declaration
public const int schema2 = 10
Field Value
Type Description
Int32

Properties

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Border

Gets or Sets the Border of this GasGaugeNeedle

Declaration
public Border Border { get; set; }
Property Value
Type Description
Border
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Fill

Gets or Sets the Fill of this GasGaugeNeedle

Declaration
public Fill Fill { get; set; }
Property Value
Type Description
Fill
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LabelDetail

Gets or Sets the LableDetail of this GasGaugeNeedle

Declaration
public TextObj LabelDetail { get; set; }
Property Value
Type Description
TextObj
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NeedleColor

Gets or Sets the NeedelColor of this GasGaugeNeedle

Declaration
public Color NeedleColor { get; set; }
Property Value
Type Description
Color
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NeedleValue

Gets or Sets the NeedleValue of this GasGaugeNeedle

Declaration
public double NeedleValue { get; set; }
Property Value
Type Description
Double
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NeedleWidth

Gets or Sets the NeedleWidth of this GasGaugeNeedle

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

Gets or Sets the SlicePath of this GasGaugeNeedle

Declaration
public GraphicsPath SlicePath { get; }
Property Value
Type Description
GraphicsPath

Methods

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CalcRectangle(Graphics, GraphPane, Single, RectangleF)

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

Declaration
public static RectangleF CalcRectangle(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.

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CalculateGasGaugeParameters(GraphPane)

Calculate the values needed to properly display this GasGaugeNeedle.

Declaration
public static void CalculateGasGaugeParameters(GraphPane pane)
Parameters
Type Name Description
GraphPane pane

A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
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Clone()

Typesafe, deep-copy clone method.

Declaration
public GasGaugeNeedle Clone()
Returns
Type Description
GasGaugeNeedle

A new, independent copy of this class
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Draw(Graphics, GraphPane, Int32, Single)

Do all rendering associated with this GasGaugeNeedle 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 GasGaugeNeedle
Single scaleFactor

Not used for rendering GasGaugeNeedle
Overrides
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DrawLegendKey(Graphics, GraphPane, RectangleF, Single)

Render the label for this GasGaugeNeedle.

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 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 GasGaugeNeedle.
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
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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
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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