Version 3.17.2

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Graphic Class

Graphic acts a factory and container for shapes. You need at least one Graphic instance to create shapes for your application.

The code block below creates a Graphic instance and appends it to an HTMLElement with the id 'mygraphiccontainer'.

 var myGraphic = new Y.Graphic({render:"#mygraphiccontainer"});

Alternatively, you can add a Graphic instance to the DOM using the render method.

var myGraphic = new Y.Graphic(); myGraphic.render("#mygraphiccontainer"); Graphic has the following implementations based on browser capability. It is not necessary to interact with these classes directly. Graphic will point to the appropriate implemention.

Constructor

Graphic

()

Methods

addShape

(
  • cfg
)

Generates a shape instance by type. The method accepts an object that contain's the shape's type and attributes to be customized. For example, the code below would create a rectangle:

 var myRect = myGraphic.addShape({
 type: "rect",
 width: 40,
 height: 30,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });

The Graphics module includes a few basic shapes. More information on their creation can be found in each shape's documentation:

The Graphics module also allows for the creation of custom shapes. If a custom shape has been created, it can be instantiated with the addShape method as well. The attributes, required and optional, would need to be defined in the custom shape.

 var myCustomShape = myGraphic.addShape({
 type: Y.MyCustomShape,
 width: 50,
 height: 50,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });

Parameters:

  • cfg Object

    Object containing the shape's type and attributes.

Returns:

Shape

batch

(
  • method
)

Allows for creating multiple shapes in order to batch appending and redraw operations.

Parameters:

destroy

()

Removes all nodes.

getShapeById

(
  • id
)

Returns a shape based on the id of its dom node.

Parameters:

  • id String

    Dom id of the shape's node attribute.

Returns:

Shape

getXY

()

Gets the current position of the graphic instance in page coordinates.

Returns:

Array The XY position of the shape.

removeAllShapes

()

Removes all shape instances from the dom.

removeShape

(
  • shape
)

Removes a shape instance from from the graphic instance.

Parameters:

  • shape Shape | String

    The instance or id of the shape to be removed.

render

(
  • parentNode
)

Adds the graphics node to the dom.

Parameters:

  • parentNode Node | String

    node in which to render the graphics node into.

Attributes

autoDraw

Boolean private

Indicates whether or not the instance will automatically redraw after a change is made to a shape. This property will get set to false when batching operations.

Default: true

autoSize

Boolean | String

Determines the sizing of the Graphic.

sizeContentToGraphic
The Graphic's width and height attributes are, either explicitly set through the width and height attributes or are determined by the dimensions of the parent element. The content contained in the Graphic will be sized to fit with in the Graphic instance's dimensions. When using this setting, the preserveAspectRatio attribute will determine how the contents are sized.
sizeGraphicToContent
(Also accepts a value of true) The Graphic's width and height are determined by the size and positioning of the content.
false
The Graphic's width and height attributes are, either explicitly set through the width and height attributes or are determined by the dimensions of the parent element. The contents of the Graphic instance are not affected by this setting.

Default: false

contentBounds

Object readonly

Object containing size and coordinate data for the content of a Graphic in relation to the coordSpace node.

height

Number

Indicates the height of the Graphic.

id

String

Unique id for class instance.

node

HTMLElement readonly

The html element that represents to coordinate system of the Graphic instance.

preserveAspectRatio

String

Determines how content is sized when autoSize is set to sizeContentToGraphic.

none
Do not force uniform scaling. Scale the graphic content of the given element non-uniformly if necessary such that the element's bounding box exactly matches the viewport rectangle.
xMinYMin
Force uniform scaling position along the top left of the Graphic's node.
xMidYMin
Force uniform scaling horizontally centered and positioned at the top of the Graphic's node.
xMaxYMin
Force uniform scaling positioned horizontally from the right and vertically from the top.
xMinYMid
Force uniform scaling positioned horizontally from the left and vertically centered.
xMidYMid (the default)
Force uniform scaling with the content centered.
xMaxYMid
Force uniform scaling positioned horizontally from the right and vertically centered.
xMinYMax
Force uniform scaling positioned horizontally from the left and vertically from the bottom.
xMidYMax
Force uniform scaling horizontally centered and position vertically from the bottom.
xMaxYMax
Force uniform scaling positioned horizontally from the right and vertically from the bottom.

Default: xMidYMid

render

Node | String

Whether or not to render the Graphic automatically after to a specified parent node after init. This can be a Node instance or a CSS selector string.

resizeDown

Boolean

The contentBounds will resize to greater values but not to smaller values. (for performance) When resizing the contentBounds down is desirable, set the resizeDown value to true.

shapes

Object readonly

Key value pairs in which a shape instance is associated with its id.

visible

Boolean

Indicates whether the Graphic and its children are visible.

width

Number

Indicates the width of the Graphic.

x

Number

Indicates the x-coordinate for the instance.

y

Number

Indicates the y-coordinate for the instance.

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