By id
SVG.get()
returns
SVG.Element
(or the most relevant subclass of SVG.Element
)
If you want to get an element created by SVG.js by its id, you can use the SVG.get()
method:
var element = SVG.get('my_element')
element.fill('#f06')
Using CSS selectors
SVG.select()
returns
SVG.Set
This will search in all svg elements in a document and return them in an instance of SVG.Set
:
var elements = SVG.select('rect.my-class').fill('#f06')
Additionally, a second argument can be passed to define the parent element to search in:
var elements = SVG.select('rect.my-class', group).fill('#f06')
element.select()
returns
SVG.Set
Similar to SVG.select()
, elements van be selected within a child element as well:
var elements = group.select('rect.my-class').fill('#f06')
This method is available on all parent classes inheriting from SVG.Parent
.
Existing DOM elements
SVG.adopt()
returns
SVG.Element
If you want SVG.js to adopt an existing DOM element, you can use the SVG.adopt()
method:
var polygon = document.createElement('polygon')
var element = SVG.adopt(polygon)
element.fill('#f06')
Using jQuery or Zepto
Another way is to use jQuery or Zepto. Here is an example:
// add elements
var draw = SVG('drawing')
var group = draw.group().addClass('my-group')
var rect = group.rect(100,100).addClass('my-element')
var circle = group.circle(100).addClass('my-element').move(100, 100)
// get elements in group
var elements = $('#drawing g.my-group .my-element').each(function() {
this.instance.animate().fill('#f09')
})
Circular reference
Every element instance within SVG.js has a reference to the actual node
.
node
returns
SVGElement
element.node
native()
returns
SVGElement
element.node
instance
returns
SVG.Element
Similarly, the node
carries a reference to the SVG.js instance
:
node.instance
Note the difference in return values.
The node
references a native SVGElement
while instance
references the SVG.Element
instance.
Child references
children()
returns
array
An array of all children can be retrieved with the children
method:
draw.children()
clear()
returns
itself
To remove all elements from a parent element:
draw.clear()
each()
returns
itself
The each()
allows you to iterate over the all children of a parent element:
draw.each(function(i, children) {
this.fill({ color: '#f06' })
})
Deep traversing is also possible by passing true as the second argument:
// draw.each(block, deep)
draw.each(function(i, children) {
this.fill({ color: '#f06' })
}, true)
Note: this
refers to the current child element.
first()
returns
SVG.Element
To get the first child of a parent element:
draw.first()
get()
returns
SVG.Element
Get an element on a given position in the children array:
var rect = draw.rect(20, 30)
var circle = draw.circle(50)
draw.get(0) //-> returns rect
draw.get(1) //-> returns circle
has()
returns
boolean
Checking the existence of an element within a parent:
var rect = draw.rect(100, 50)
var group = draw.group()
draw.has(rect) //-> returns true
group.has(rect) //-> returns false
index()
returns
number
Returns the index of given element and returns -1 when it is not a child:
var rect = draw.rect(100, 50)
var group = draw.group()
draw.index(rect) //-> returns 0
group.index(rect) //-> returns -1
last()
returns
SVG.Element
To get the last child of a parent element:
draw.last()
Parent references
Every element has a reference to its parent with the parent()
method:
doc()
returns
SVG.Doc
For retrieving the root SVG you can use doc()
var draw = SVG('drawing')
var rect = draw.rect(100, 100)
rect.doc() //-> returns draw
parent() within the svg document
returns
SVG.Element
element.parent()
Alternatively a class or css selector can be passed as the first argument:
var draw = SVG('drawing')
var nested = draw.nested().addClass('test')
var group = nested.group()
var rect = group.rect(100, 100)
rect.parent() //-> returns group
rect.parent(SVG.Doc) //-> returns draw
rect.parent(SVG.Nested) //-> returns nested
rect.parent(SVG.G) //-> returns group
rect.parent('.test') //-> returns nested
parent() on the topmost svg document
returns
HTMLNode
var draw = SVG('drawing')
draw.parent() //-> returns the wrappig html element with id 'drawing'
parents()
returns
array
To get all ancestors of the element filtered by type or CSS selector (see parent()
method)
var group1 = draw.group().addClass('test')
, group2 = group1.group()
, rect = group2.rect(100,100)
rect.parents() // returns [group1, group2, draw]
rect.parents('.test') // returns [group1]
rect.parents(SVG.G) // returns [group1, group2]
URI references
In cases where an element is linked to another element through an attribute, the linked element instance can be fetched with the reference()
method.
reference()
returns
SVG.Element
The only thing required is the attribute name:
use.reference('href') //-> returns used element instance
// or
rect.reference('fill') //-> returns gradient or pattern instance for example
// or
circle.reference('clip-path') //-> returns clip instance