Attributes
attr() as setter
returns
itself
animate
yes
(only for numbers, arrays, colors, ...)
Set a single attribute:
rect.attr('x', 50)
Set multiple attributes at once:
rect.attr({
fill: '#f06'
, 'fill-opacity': 0.5
, stroke: '#000'
, 'stroke-width': 10
})
Set an attribute with a namespace:
rect.attr('x', 50, 'http://www.w3.org/2000/svg')
Explicitly remove an attribute:
rect.attr('fill', null)
attr() as getter
returns
value
(string, number, ...)
You can get and set an element's attributes directly using attr()
.
Get a single attribute:
var x = rect.attr('x')
Get all attributes as an object:
var attributes = rect.attr()
Get only specified attributes:
var attributes = rect.attr(['x', 'y'])
Positioning
While positioning an element by directly setting its attributes works only if the attributes are used natively by that type of element, the positioning methods described below are much more convenient as they work for all element types.
For example, the following code works because each element is positioned by setting native attributes:
rect.attr({ x: 20, y: 60 })
circle.attr({ cx: 50, cy: 40 })
The rect
will be moved by its upper left corner to the new coordinates, and the circle
will be moved by its centre. However, trying to move a circle
by its 'corner' or a rect
by its centre in this way will fail. The following lines will get silently ignored as the attributes that are addressed are not natively used by the element setting them:
rect.attr({ cx: 20, cy: 60 })
circle.attr({ x: 50, y: 40 })
However, the positioning methods detailed below will work for all element types, regardless of whether the attributes being addressed are native to the type. So, unlike the lines above, these lines work just fine:
rect.cx(20).cy(60)
circle.x(50).y(40)
It is important to note, though, that these methods are only intended for use with user (unitless) coordinates. If for example, an element has its size set via percentages or other units, the positioning methods that address its native attributes will most likely still work, but the ones that address non-native attributes will give unexpected results -- as both getters and setters!
move()
returns
itself
animate
yes
Move the element by its upper left corner to a given x
and y
position:
rect.move(200, 350)
x() as setter
returns
itself
animate
yes
Move the element by its upper left corner along the x-axis only:
rect.x(200)
x() as getter
returns
value
Without an argument the x()
method serves as a getter:
var x = rect.x()
y() as setter
returns
itself
animate
yes
Move the element by its upper left corner along the y-axis only:
rect.y(350)
y() as getter
returns
value
Without an argument the y()
method serves as a getter:
var y = rect.y()
center()
returns
itself
animate
yes
Move the element by its center to a given cx
and cy
position:
rect.center(150, 150)
cx() as setter
returns
itself
animate
yes
Move the element by its centre in the x
direction only:
rect.cx(200)
cx() as getter
returns
value
Without an argument the cx()
method serves as a getter:
var cx = rect.cx()
cy() as setter
returns
itself
animate
yes
Move the element by its centre in the y
direction only:
rect.cy(350)
cy() as getter
returns
value
Without an argument the cy()
method serves as a getter as well:
var cy = rect.cy()
dmove()
returns
itself
animate
yes
Shift the element in both the x
and y
directions relative to its current position:
rect.dmove(10, 30)
Note: when using dmove()
(and dx()
or dy()
too for that matter), always make sure you provide values of the same unit the element is originally positioned in. So if the element is at x:10%
, use element.dx('5%')
and not element.dx('5px')
.
dx()
returns
itself
animate
yes
Shift the element in the x
direction relative to its current position:
rect.dx(200)
dy()
returns
itself
animate
yes
Shift the element in the y
direction relative to its current position:
rect.dy(200)
Resizing
size()
returns
itself
animate
yes
Set the size of an element to a given width
and height
:
rect.size(200, 300)
Proportional resizing is also possible by leaving out height
:
rect.size(200)
Or by passing null
as the value for width
:
rect.size(null, 200)
As with positioning, the size of an element could be set by using attr()
. But because every type of element is handles its size differently the size()
method is much more convenient.
width() as setter
returns
itself
animate
yes
Set the width of an element:
rect.width(200)
width() as getter
returns
value
var width = rect.width()
height() as setter
returns
itself
animate
yes
Set the height of an element:
rect.height(325)
height() as getter
returns
value
rect.height()
radius()
returns
itself
animate
yes
Circles, ellipses, and rects may use the radius()
method. On rects, it defines rounded corners.
For a circle, the argument sets the r
attribute.
circle.radius(10)
For ellipses and rects, pass two arguments to set the rx
and ry
attributes individually. Or, pass a single argument, to make the two attributes equal.
ellipse.radius(10, 20)
rect.radius(5)
Syntactic sugar
fill()
returns
itself
The fill()
method is a pretty alternative to the attr()
method:
rect.fill({ color: '#f06', opacity: 0.6 })
A single hex string will work as well:
rect.fill('#f06')
Last but not least, you can also use an image as fill, simply by passing an image url:
rect.fill('images/shade.jpg')
Or if you want more control over the image, you can pass an image instance as well:
rect.fill(draw.image('images/shade.jpg', function() {
this.size(20, 20)
}))
stroke()
returns
itself
The stroke()
method is similar to fill()
:
rect.stroke({ color: '#f06', opacity: 0.6, width: 5 })
Like fill, a single hex string will work as well:
rect.stroke('#f06')
Not unlike the fill()
method, you can also use an image as stroke, simply by passing an image url:
rect.stroke('images/shade.jpg')
Or if you want more control over the size of the image, you can pass an image instance as well:
rect.stroke(draw.image('images/shade.jpg', 20, 20))
opacity()
returns
itself
To set the overall opacity of an element:
rect.opacity(0.5)
Transforming
transform() as setter
returns
itself
animate
yes
Transformations are applied absolutely by using an affine approach:
element.transform({
rotate: 125,
translateX: 50,
translateY: 100,
scale: 3
})
To make the syntax as easy as possible, it is possible to pass in parameters in different ways:
- translation:
translate: {x: 50, y: 50}
,translate: [50, 50]
,translateX: 50, translateY: 50
,tx: 50, ty: 50
- rotate:
rotate: 50
- scale:
scale: 2
,scale: [2,2]
,scaleX: 2, scaleY: 2
- shear/skew:
skew: [10, 10]
,skewX: 10, skewY: 10
,shear: 3
- flip:
both
,true
,x
,y
- origin:
origin: {x: 50, y: 50}
,origin: [50, 50]
,origin: 50
,originX: 50, originY: 50
,ox: 50, oy: 50
- origin can also be a up to 2 words speciying the corners of the element: center, top, bottom, left, right
- position:
position: {x: 50, y: 50}
,position: [50, 50]
,positionX: 50, positionY: 50
,px: 50, py: 50
- absolute position of the origin after all transformations are applied
- relative:
relative: {x: 50, y: 50}
,relative: [50, 50]
,relativeX: 50, relativeY: 50
,rx: 50, ry: 50
- relative position of the origin after all transformations are applied
element.transform({
translate: [10, 20],
origin: 'top left',
flip: 'both'
})
You can also pass in a matrix or an object with a-f parameters to apply it directly:
element.transform({
a: 1, b: 0, c: 1, d: 0, e: 10, f: 20
})
To apply a relative transformation, you can pass a second argument:
element.transform({ rotate: 125 }).transform({ rotate: 37.5 }, true)
It is also possible to apply a transformation relative to another element or even a matrix. You can do that by passing in the element or matrix instead of the relative flag:
element.transform({ rotation: 125 }, someElement)
element.transform({ rotation: 125 }, someMatrix)
transform() as getter
returns
value
The transform()
method acts as a full getter without an argument:
element.transform()
The returned object
contains the following values:
translateX
(translation on the x-axis)translateY
(translation on the y-axis)skewX
(calculated skew on x-axis)skewY
(calculated skew on y-axis)shear
(calculated sher on x-axix)scaleX
(calculated scale on x-axis)scaleY
(calculated scale on y-axis)rotate
(calculated rotation)originX
(0 for this usecase)originY
(0 for this usecase)
-a-f
(matrix data)
Additionally a string value for the required property can be passed:
element.transform('rotate')
flip()
returns
itself
animate
yes
Flips element over a given axis:
element.flip('x')
or
element.flip('y')
By default, elements are flipped over their centre point. The flip origin can be defined with the second argument:
element.flip('x', {x: 20, y: 30})
Finally, an element can also be flipped over two axes at once by not providing an axis value, 'both'
or true
:
element.flip()
element.flip('both')
element.flip(true)
rotate()
returns
itself
animate
yes
The rotate()
method will automatically rotate elements according to the center of the element:
// rotate(degrees)
element.rotate(45)
Although you can also define a specific rotation point:
// rotate(degrees, cx, cy)
element.rotate(45, 50, 50)
skew()
returns
itself
animate
yes
The skew()
method will take an x
and y
value:
// skew(x, y)
element.skew(0, 45)
scale()
returns
itself
animate
yes
The scale()
method will scale elements by multiplying their x
and y
coordinates by either a single scale factor or two separate scale factors:
// scale(factor)
element.scale(2)
// scale(xFactor, yFactor)
element.scale(0.5, -1)
By default, scaling is relative to the center of the element.
You can also define a specific center point (vanishing point of scaling):
// scale(factor, centerX, centerY)
element.scale(2, 0, 0)
// scale(xFactor, yFactor, centerX, centerY)
element.scale(0.5, -1, 0, 0)
translate()
returns
itself
animate
yes
The translate()
method will take an x
and y
value:
// translate(x, y)
element.translate(0.5, -1)
Styles
css() as setter
returns
itself
With the css()
method the style
attribute can be managed like attributes with attr
:
element.css('cursor', 'pointer')
Multiple styles can be set at once using an object:
element.css({ cursor: 'pointer', fill: '#f03' })
Explicitly deleting individual style definitions works the same as with the attr()
method:
element.css('cursor', null)
css() as getter
returns
value
(string, number, ...)
Similar to attr()
the css()
method can also act as a getter:
element.css('cursor')
// => pointer
Or even a full getter:
element.css()
// => {cursor:pointer;fill:#f03;}
You can also get only specific styles by using an array:
element.css(['cursor', 'fill'])
// => {cursor:pointer;fill:#f03;}
hide()
returns
itself
Hide element:
element.hide()
show()
returns
itself
Show (unhide) element:
element.show()
visible()
returns
boolean
To check if the element is visible:
element.visible()
Id Attribute
The id()
method allows you to get, and set, the id attribute of SVG elements.
id() as getter
returns
id
Gets the id attribute, creating a new unique id if one is not already set:
var id = rect.id()
id() as setter
returns
id
Sets the id attribute:
rect.id('my-unique-id')
Removing the id altogether:
rect.id(null)
Class Names
addClass()
returns
itself
Adds a given css class:
element.addClass('pink-flower')
classes()
returns
array
Fetches the CSS classes for the node as an array:
element.classes()
hasClass()
returns
boolean
Test the presence of a given css class:
element.hasClass('purple-rain')
removeClass()
returns
itself
Removes a given css class:
element.removeClass('pink-flower')
toggleClass()
returns
itself
Toggles a given css class:
element.toggleClass('pink-flower')
Data
The data()
method allows you to bind arbitrary objects, strings and numbers to SVG elements.
data() as getter
returns
value
Fetching the values is similar to the attr()
method:
var obj = rect.data()
var value = rect.data('key')
var obj2 = rect.data(['key1', 'key2'])
data() as setter
returns
itself
rect.data('key', { value: { data: 0.3 }})
Or set multiple values at once:
rect.data({
forbidden: 'fruit'
, multiple: {
values: 'in'
, an: 'object'
}
})
Removing the data altogether:
rect.data('key', null)
Your values will always be stored as JSON and in some cases this might not be desirable. If you want to store the value as-is, just pass true as the third argument:
rect.data('key', 'value', true)
Memory
remember() as getter
returns
value
To retrieve a memory
rect.remember('oldBBox')
remember() as setter
returns
itself
Storing data in-memory is very much like setting attributes:
rect.remember('oldBBox', rect.bbox())
Multiple values can also be remembered at once:
rect.remember({
oldFill: rect.attr('fill')
, oldStroke: rect.attr('stroke')
})
forget()
returns
itself
Erasing a single memory:
rect.forget('oldBBox')
Or erasing multiple memories at once:
rect.forget('oldFill', 'oldStroke')
And finally, just erasing the whole memory:
rect.forget()
Document Tree
add()
returns
itself
Sets the calling element as the parent node of the argument. Returns the parent:
var rect = draw.rect(100, 100)
var group = draw.group()
group.add(rect) //-> returns group
You can also pass a css selector, a node or an svg string:
group.add('#someEl')
group.add(document.getElementById('someEl'))
group.add('<rect>')
add()
also accepts a second argument specifying at which position the element will be inserted:
var rect = draw.rect(100, 100)
var group = draw.group()
group.circle(100, 100)
group.add(rect, 0) //-> inserts rect as first child
addTo()
returns
itself
Sets the calling element as a child node of the argument. Returns the child:
rect.addTo(group) //-> returns rect
rect.addTo('#someEl')
rect.addTo(document.body)
rect.addTo('<g>')
addTo()
accepts a second argument specifying the position (see add()
)
clone()
returns
SVG.Element
To make an exact copy of an element the clone()
method comes in handy:
var clone = rect.clone()
By default clone()
will make a deep clone (it also clones the children) and assigns new ids to every elements. You can change that behavior by passing 2 arguments:
var makeDeepClone = false
var assignNewId = false
var clone = rect.clone(makeDeepClone, assignNewId)
clone()
will create a new, unlinked element. For making a linked clone, see the use element.
To insert the clone, use addTo()
or add()
.
put()
returns
SVG.Element
Sets the calling element as the parent node of the argument. Returns the child. In case the child wasn't an svgjs object, an svgjs object is created and returned:
group.put(rect) //-> returns rect
group.put('#myRect') //-> returns SVG.Rect with id myRect
group.put(document.getElementById('myRect')) //-> returns SVG.Rect with id myRect
group.put('<rect>') //-> returns SVG.Rect
put()
accepts a second argument specifying the position (see add()
)
putIn()
returns
SVG.Element
Sets the calling element as a child node of the argument. Returns the parent. In case the parent wasn't an svgjs object, an svgjs object is created and returned:
rect.putIn(group) //-> returns group
rect.putIn('#myGroup') //-> returns SVG.G with id myGroup
group.put(document.getElementById('myGroup')) //-> returns SVG.G with id myGroup
rect.putIn('<g>') //-> returns SVG.G
putIn()
accepts a second argument specifying the position (see add()
)
remove()
returns
itself
Removes the calling element from the svg document:
rect.remove()
replace()
returns
SVG.Element
At the calling element's position in the svg document, replace the calling element with the element passed to the method.
rect.replace(draw.circle(100))
toRoot()
returns
itself
Same as toParent()
but with the root-node as parent. toRoot()
takes a position as parameter and appends by default.
toParent()
returns
itself
Moves an element to a different parent (similar to addTo
), but without changing its visual representation. All transformations are merged and applied to the element.
rect.toParent(group) // looks the same as before
You can specifiy the position at which the element is inserted by passing a second parameter:
rect.toParent(group, 3) // inserted at position 3 (4th child)
ungroup()
returns
itself
Breaks up a groupd and puts all of its elements into the parent of the group without changing their visual representation. That means, any transformation applied to the group is now applied to its individual elements.
group.rect(100, 200)
group.circle(4)
group.transform({rotate: 20}).ungroup()
// group is deleted, rect and circle both have rotate: 20
You can also specify to which container the elements of the group are moved and at which position they are inserted:
group.ungroup(otherContainer, position)
Note: Defs
elements can not be ungrouped
flatten()
returns
itself
Breaks up all containers contained in an element and flattens the svg structure so that all elements end up in the element flatten()
was called on.
Call it on the root node to get a flat svg structure:
drawing.flatten()
Flatten and export svg:
var svgString = drawing.flatten().svg()
To put all elements into another comtainer and remove the current element, you can call ungroup()
right after flatten:
var svgString = drawing.flatten().ungroup(otherContainer)
Note: Defs
elements can not be flattened
wrap()
returns
itself
Wraps the passed element around the current element. This replaces the current element with the wrapping element and appends the current element to the wrapped element.
rect.wrap('<g>')
rect.wrap(new G())
Arranging
You can arrange elements within their parent SVG document using the following methods.
after()
returns
itself
Insert an element after another:
// inserts circle after rect
rect.after(circle)
before()
returns
itself
Insert an element before another:
// inserts circle before rect
rect.before(circle)
insertAfter()
returns
itself
Insert the current element behind the passed element
rect.insertAfter(circle)
insertBefore()
returns
itself
Insert the current element before the passed element
rect.insertBefore(circle)
back()
returns
itself
Move element to the back:
rect.back()
backward()
returns
itself
Move element one step backward:
rect.backward()
front()
returns
itself
Move element to the front:
rect.front()
forward()
returns
itself
Move element one step forward:
rect.forward()
next()
returns
SVG.Element
Get the next sibling:
rect.next()
position()
returns
number
Get the position (a number) of rect between its siblings:
rect.position()
prev()
returns
SVG.Element
Get the previous sibling:
rect.prev()
siblings()
returns
array
To get all siblings of rect, including rect itself:
rect.siblings()
Geometry
point()
returns
SVG.Point
Transforms a point from screen coordinates to the elements coordinate system.
// e is some mouseevent
var point = path.point(e.pageX, e.pageY) // {x, y}
inside()
returns
boolean
To check if a given point is inside the bounding box of an element you can use the inside()
method:
var rect = draw.rect(100, 100).move(50, 50)
rect.inside(25, 30) //-> returns false
rect.inside(60, 70) //-> returns true
Note: the x
and y
positions are tested against the relative position of the element. Any offset on the parent element is not taken into account.
bbox()
returns
SVG.Box
Gives the bounding box of an element which is the untransformed tightest box around the element.
element.bbox()
rbox()
returns
SVG.Box
Returns the transformed box of an element which is the transformed tightest box around the element. To specify to which coordinate system the box is transformed, relatively it is possible to pass in an element:
element.rbox(drawing)
// transformed box in coordinates of drawing
This method is a convenient wrapper around getBoundingClientRect()
.
viewbox()
viewbox() as setter
Sets the viewbox of an element (only available on elements which support viewbox)
drawing.viewbox(10, 10, 500, 600)
// or
drawing.viewbox('10 10 500 600')
// or
drawing.viewbox(box)
viewbox() as getter
returns
SVG.Box
drawing.viewbox()