Class ImageObj

A class that represents an image object on the graph. A list of GraphObj objects is maintained by the GraphObjList collection class.

Inheritance

Object

GraphObj

ImageObj

Implements

ICloneable

ISerializable

Inherited Members

GraphObj._location

GraphObj._isVisible

GraphObj._isClippedToChartRect

GraphObj.Tag

GraphObj.Location

GraphObj.ZOrder

GraphObj.IsVisible

GraphObj.IsClippedToChartRect

GraphObj.Link

GraphObj.IsInFrontOfData

GraphObj.schema

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 ImageObj : GraphObj, ICloneable, ISerializable

Constructors

ImageObj()

A default constructor that places a null Image at a default RectangleF of (0,0,1,1)

Declaration

public ImageObj()

ImageObj(Image, Double, Double, Double, Double)

A constructor that allows the Image and individual Single coordinate locations for the ImageObj to be pre-specified.

Declaration

public ImageObj(Image image, double left, double top, double width, double height)

Parameters

Type	Name	Description
Image	image	A Image class that defines the image
Double	left	The position of the left side of the rectangle that defines the ImageObj location. The units of this position are specified by the CoordinateFrame property.
Double	top	The position of the top side of the rectangle that defines the ImageObj location. The units of this position are specified by the CoordinateFrame property.
Double	width	The width of the rectangle that defines the ImageObj location. The units of this position are specified by the CoordinateFrame property.
Double	height	The height of the rectangle that defines the ImageObj location. The units of this position are specified by the CoordinateFrame property.

ImageObj(Image, RectangleF)

A constructor that allows the Image and RectangleF location for the ImageObj to be pre-specified.

Declaration

public ImageObj(Image image, RectangleF rect)

Parameters

Type	Name	Description
Image	image	A Image class that defines the image
RectangleF	rect	A RectangleF struct that defines the image location, specifed in units based on the CoordinateFrame property.

ImageObj(Image, RectangleF, CoordType, AlignH, AlignV)

A constructor that allows the Image and RectangleF location for the ImageObj to be pre-specified.

Declaration

public ImageObj(Image image, RectangleF rect, CoordType coordType, AlignH alignH, AlignV alignV)

Parameters

Type	Name	Description
Image	image	A Image class that defines the image
RectangleF	rect	A RectangleF struct that defines the image location, specifed in units based on the CoordinateFrame property.
CoordType	coordType	The CoordType enum value that indicates what type of coordinate system the x and y parameters are referenced to.
AlignH	alignH	The AlignH enum that specifies the horizontal alignment of the object with respect to the (x,y) location
AlignV	alignV	The AlignV enum that specifies the vertical alignment of the object with respect to the (x,y) location

ImageObj(SerializationInfo, StreamingContext)

Constructor for deserializing objects

Declaration

protected ImageObj(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

ImageObj(ImageObj)

The Copy Constructor

Declaration

public ImageObj(ImageObj rhs)

Parameters

Type	Name	Description
ImageObj	rhs	The ImageObj 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

Image

The Image object.

Declaration

public Image Image { get; set; }

Property Value

Type	Description
Image	A Image class reference.

IsScaled

Gets or sets a property that determines if the image will be scaled to the output rectangle (see Location).

Declaration

public bool IsScaled { get; set; }

Property Value

Type	Description
Boolean	true to scale the image, false to draw the image unscaled, but clipped to the destination rectangle

Methods

Clone()

Typesafe, deep-copy clone method.

Declaration

public ImageObj Clone()

Returns

Type	Description
ImageObj	A new, independent copy of this class

Draw(Graphics, PaneBase, Single)

Render this object to the specified Graphics device This method is normally only called by the Draw method of the parent GraphObjList collection object.

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

GraphObj.Draw(Graphics, PaneBase, Single)

GetCoords(PaneBase, Graphics, Single, out String, out String)

Determines the shape type and Coords values for this GraphObj

Declaration

public override void GetCoords(PaneBase pane, Graphics g, float scaleFactor, out string shape, out string coords)

Parameters

Type	Name	Description
PaneBase	pane
Graphics	g
Single	scaleFactor
String	shape
String	coords

Overrides

GraphObj.GetCoords(PaneBase, Graphics, Single, out String, 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

GraphObj.GetObjectData(SerializationInfo, StreamingContext)

PointInBox(PointF, PaneBase, Graphics, Single)

Determine if the specified screen point lies inside the bounding box of this ArrowObj. The bounding box is calculated assuming a distance of NearestTol pixels around the arrow segment.

Declaration

public override bool PointInBox(PointF pt, PaneBase pane, Graphics g, float scaleFactor)

Parameters

Type	Name	Description
PointF	pt	The screen point, in pixels
PaneBase	pane	A reference to the PaneBase object that is the parent or owner of this object.
Graphics	g	A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
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.

Returns

Type	Description
Boolean	true if the point lies in the bounding box, false otherwise

Overrides

GraphObj.PointInBox(PointF, PaneBase, Graphics, Single)

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