Category Archives: KineticJs

Kineticjs Cloning example

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<!DOCTYPE HTML>
<html>
<head>
<style>
body {
margin: 0px;
padding: 0px;
}
canvas {
border: 1px solid #9C9898;
}
</style>
<script src=”http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v5.1.0.min.js”></script&gt;
<script>
window.onload = function() {
var stage = new Kinetic.Stage({
container: ‘container’,
width: 578,
height: 200
});

var layer = new Kinetic.Layer();

var rect = new Kinetic.Rect({
x: 239,
y: 75,
width: 100,
height: 50,
fill: ‘green’,
stroke: ‘black’,
strokeWidth: 4,
draggable:true
});

var clone = rect.clone();
clone.setX(10);clone.setY(10);
// add the clone to the layer
layer.add(rect).add(clone);

// add the layer to the stage
stage.add(layer);
};

</script>
</head>
<body>
<div id=”container”></div>
</body>
</html>

 

Check in jsfiddle

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Angularjs with kineticjs??

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Folks,

Can this be possible?? First we will know what are these different frameworks? what similarities and dissimilarities do they hold?

AngularJS is great at binding DOM elments.

But KineticJS objects are not DOM elements—they are just pixels on the canvas.

So AngularJS can’t control Kinetic objects directly.

To get Kinetic objects to move in response to text-input changes, you could use an AngularJS controller and make calls to the Kinetic object’s setX/setY.

To get text-input values to change as Kinetic objects are dragged, you might call the AngularJS controller from within a Kinetic dragmove event handler.

A complication is that by default, both Angular and Kinetic will want to control mouse events for their own purposes.

I’m not saying it can’t be done, but…

Integrating KineticJS + AngularJS is more complicated

How to add a text on image in kineticjs

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Folks,

I have been searching for a longtime to write text on image in kineticjs..but its none of use..in some articles they mentioned we can use z-index like below..zI should be given with integer..

bet.setZIndex(zI);

But i sort it out without using that by placing kinetic text in kinetic image like shown below..

                                var imageObj = new Image();
 
                                imageObj.onload = function () {
                                    bet = new Kinetic.Image({
                                        x: xaxis,
                                        y: yaxis,
                                        image: imageObj
                                    });
                                    group.add(bet);
                                    layer.add(group);
                                    yaxis = yaxis - 7;
                                    var text = new Kinetic.Text({
                                        x: bet.getX(),//get x coordinate of image
                                        y: bet.getY() + 30, // get y coordinate of image
                                        text: '',
                                        fill: 'red',
                                        fontFamily: 'Cambria',
                                        fontSize: 19,
                                        fontStyle: 'bold',
                                        width: 118,
                                        height: 100,
                                        align: "center",
                                        verticalAlign: "middle"
                                    });
                                    text.setText(arg1); //set text on your image
                                    group.add(text);
                                    layer.draw(); 
 
 
                                };
                                imageObj.src = 'bet_chips/' + i + '.png';//image source

Generic members and methods in kinetic js

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Guys,

The below list is a generic list of all members and methods in various classes..To know how to use it, clickhere

Members:

dragDistance

get/set drag distance
Example
// get drag distance
var dragDistance = node.dragDistance();

// set distance
// node starts dragging only if pointer moved more then 3 pixels
node.dragDistance(3);
// or set globally
Kinetic.dragDistance = 3;

offsetX

get/set offset x
Example
// get offset x
var offsetX = node.offsetX();

// set offset x
node.offsetX(3);

 

Methods

angle(angle)

get/set angle in degrees
Parameters:
angle Number
Returns:
Type
Number
Example
// get angle
var angle = arc.angle();

// set angle
arc.angle(20);

blue(blue)

get/set filter blue value
Parameters:
blue Integer value between 0 and 255
Returns:
Type
Integer

blurRadius(radius)

get/set blur radius
Parameters:
radius Integer
Returns:
Type
Integer

cache(config)

cache node to improve drawing performance, apply filters, or create more accurate hit regions
Parameters:
config Object
Properties
x Number <optional>
y Number <optional>
width Number <optional>
height Number <optional>
drawBorder Boolean <optional> when set to true, a red border will be drawn around the cached region for debugging purposes
Returns:
Type
Kinetic.Node
Example
// cache a shape with the x,y position of the bounding box at the center and
// the width and height of the bounding box equal to the width and height of
// the shape obtained from shape.width() and shape.height()
image.cache();

// cache a node and define the bounding box position and size
node.cache({
  x: -30,
  y: -30,
  width: 100,
  height: 200
});

// cache a node and draw a red border around the bounding box
// for debugging purposes
node.cache({
  x: -30,
  y: -30,
  width: 100,
  height: 200,
  drawBorder: true
});

clearCache()

clear cached canvas
Returns:
Type
Kinetic.Node
Example
node.clearCache();

clockwise(clockwise)

get/set clockwise flag
Parameters:
clockwise Boolean
Returns:
Type
Boolean
Example
// get clockwise flag
var clockwise = arc.clockwise();

// draw arc counter-clockwise
arc.clockwise(false);

// draw arc clockwise
arc.clockwise(true);

clone(attrs)

clone node. Returns a new Node instance with identical attributes. You can also override the node properties with an object literal, enabling you to use an existing node as a template for another node
Parameters:
attrs Object override attrs
Returns:
Type
Kinetic.Node
Example
// simple clone
var clone = node.clone();

// clone a node and override the x position
var clone = rect.clone({
  x: 5
});

dash(dash)

get/set dash array for stroke.
Parameters:
dash Array
Returns:
Type
Array
Example
// apply dashed stroke that is 10px long and 5 pixels apart
line.dash([10, 5]);

// apply dashed stroke that is made up of alternating dashed 
// lines that are 10px long and 20px apart, and dots that have 
// a radius of 5px and are 20px apart
line.dash([10, 20, 0.001, 20]);

dashEnabled(enabled)

get/set dash enabled flag
Parameters:
enabled Boolean
Returns:
Type
Boolean
Example
// get dash enabled flag
var dashEnabled = shape.dashEnabled();

// disable dash
shape.dashEnabled(false);

// enable dash
shape.dashEnabled(true);

destroy()

remove and destroy self
Example
node.destroy();

dragBoundFunc(dragBoundFunc)

get/set drag bound function. This is used to override the default drag and drop position
Parameters:
dragBoundFunc function
Returns:
Type
function
Example
// get drag bound function
var dragBoundFunc = node.dragBoundFunc();

// create vertical drag and drop
node.dragBoundFunc(function(){
  return {
    x: this.getAbsolutePosition().x,
    y: pos.y
  };
});

draggable(draggable)

get/set draggable flag
Parameters:
draggable Boolean
Returns:
Type
Boolean
Example
// get draggable flag
var draggable = node.draggable();

// enable drag and drop
node.draggable(true);

// disable drag and drop
node.draggable(false);

draw()

draw both scene and hit graphs. If the node being drawn is the stage, all of the layers will be cleared and redrawn
Returns:
Type
Kinetic.Node

drawHitFromCache(alphaThreshold)

draw hit graph using the cached scene canvas
Parameters:
alphaThreshold Integer alpha channel threshold that determines whether or not a pixel should be drawn onto the hit graph. Must be a value between 0 and 255. The default is 0
Returns:
Type
Kinetic.Shape
Example
shape.cache();
shape.drawHitFromCache();

embossBlend(embossBlend)

get/set emboss blend
Parameters:
embossBlend Boolean
Returns:
Type
Boolean

embossDirection(embossDirection)

get/set emboss direction
Parameters:
embossDirection String can be top-left, top, top-right, right, bottom-right, bottom, bottom-left or left The default is top-left
Returns:
Type
String

embossStrength(level)

get/set emboss strength
Parameters:
level Number between 0 and 1. Default is 0.5
Returns:
Type
Number

embossWhiteLevel(embossWhiteLevel)

get/set emboss white level
Parameters:
embossWhiteLevel Number between 0 and 1. Default is 0.5
Returns:
Type
Number

enhance(amount)

get/set enhance
Parameters:
amount Float
Returns:
Type
Float

fill(color)

get/set fill color
Parameters:
color String
Returns:
Type
String
Example
// get fill color
var fill = shape.fill();

// set fill color with color string
shape.fill('green');

// set fill color with hex
shape.fill('#00ff00');

// set fill color with rgb
shape.fill('rgb(0,255,0)');

// set fill color with rgba and make it 50% opaque
shape.fill('rgba(0,255,0,0.5');

fillAlpha(alpha)

get/set fill alpha component. Alpha is a real number between 0 and 1. The default is 1.
Parameters:
alpha Number
Returns:
Type
Number
Example
// get fill alpha component
var fillAlpha = shape.fillAlpha();

// set fill alpha component
shape.fillAlpha(0.5);

fillBlue(blue)

get/set fill blue component
Parameters:
blue Integer
Returns:
Type
Integer
Example
// get fill blue component
var fillBlue = shape.fillBlue();

// set fill blue component
shape.fillBlue(0);

fillEnabled(enabled)

get/set fill enabled flag
Parameters:
enabled Boolean
Returns:
Type
Boolean
Example
// get fill enabled flag
var fillEnabled = shape.fillEnabled();

// disable fill
shape.fillEnabled(false);

// enable fill
shape.fillEnabled(true);

fillGreen(green)

get/set fill green component
Parameters:
green Integer
Returns:
Type
Integer
Example
// get fill green component
var fillGreen = shape.fillGreen();

// set fill green component
shape.fillGreen(255);

fillLinearGradientColorStops(colorStops)

get/set fill linear gradient color stops
Parameters:
colorStops Array
Returns:
colorStops
Type
Array
Example
// get fill linear gradient color stops
var colorStops = shape.fillLinearGradientColorStops();

// create a linear gradient that starts with red, changes to blue 
// halfway through, and then changes to green
shape.fillLinearGradientColorStops(0, 'red', 0.5, 'blue', 1, 'green');

fillLinearGradientEndPoint(endPoint)

get/set fill linear gradient end point
Parameters:
endPoint Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get fill linear gradient end point
var endPoint = shape.fillLinearGradientEndPoint();

// set fill linear gradient end point
shape.fillLinearGradientEndPoint({
  x: 20
  y: 10
});

fillLinearGradientEndPointX(x)

get/set fill linear gradient end point x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill linear gradient end point x
var endPointX = shape.fillLinearGradientEndPointX();

// set fill linear gradient end point x
shape.fillLinearGradientEndPointX(20);

fillLinearGradientEndPointY(y)

get/set fill linear gradient end point y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill linear gradient end point y
var endPointY = shape.fillLinearGradientEndPointY();

// set fill linear gradient end point y
shape.fillLinearGradientEndPointY(20);

fillLinearGradientStartPoint(startPoint)

get/set fill linear gradient start point
Parameters:
startPoint Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get fill linear gradient start point
var startPoint = shape.fillLinearGradientStartPoint();

// set fill linear gradient start point
shape.fillLinearGradientStartPoint({
  x: 20
  y: 10
});

fillLinearGradientStartPointX(x)

get/set fill linear gradient start point x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill linear gradient start point x
var startPointX = shape.fillLinearGradientStartPointX();

// set fill linear gradient start point x
shape.fillLinearGradientStartPointX(20);

fillLinearGradientStartPointY(y)

get/set fill linear gradient start point y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill linear gradient start point y
var startPointY = shape.fillLinearGradientStartPointY();

// set fill linear gradient start point y
shape.fillLinearGradientStartPointY(20);

fillPatternImage(image)

get/set fill pattern image
Parameters:
image Image object
Returns:
Type
Image
Example
// get fill pattern image
var fillPatternImage = shape.fillPatternImage();

// set fill pattern image
var imageObj = new Image();
imageObj.onload = function() {
  shape.fillPatternImage(imageObj);
};
imageObj.src = 'path/to/image/jpg';

fillPatternOffset(offset)

get/set fill pattern offset
Parameters:
offset Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get fill pattern offset
var patternOffset = shape.fillPatternOffset();

// set fill pattern offset
shape.fillPatternOffset({
  x: 20
  y: 10
});

fillPatternOffsetX(x)

get/set fill pattern offset x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill pattern offset x
var patternOffsetX = shape.fillPatternOffsetX();

// set fill pattern offset x
shape.fillPatternOffsetX(20);

fillPatternOffsetY(y)

get/set fill pattern offset y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill pattern offset y
var patternOffsetY = shape.fillPatternOffsetY();

// set fill pattern offset y
shape.fillPatternOffsetY(10);

fillPatternRepeat(repeat)

get/set fill pattern repeat. Can be ‘repeat’, ‘repeat-x’, ‘repeat-y’, or ‘no-repeat’. The default is ‘repeat’
Parameters:
repeat String
Returns:
Type
String
Example
// get fill pattern repeat
var repeat = shape.fillPatternRepeat();

// repeat pattern in x direction only
shape.fillPatternRepeat('repeat-x');

// do not repeat the pattern
shape.fillPatternRepeat('no repeat');

fillPatternRotation(rotation)

get/set fill pattern rotation in degrees
Parameters:
rotation Number
Returns:
Type
Kinetic.Shape
Example
// get fill pattern rotation
var patternRotation = shape.fillPatternRotation();

// set fill pattern rotation
shape.fillPatternRotation(20);

fillPatternScale(scale)

get/set fill pattern scale
Parameters:
scale Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get fill pattern scale
var patternScale = shape.fillPatternScale();

// set fill pattern scale
shape.fillPatternScale({
  x: 2
  y: 2
});

fillPatternScaleX(x)

get/set fill pattern scale x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill pattern scale x
var patternScaleX = shape.fillPatternScaleX();

// set fill pattern scale x
shape.fillPatternScaleX(2);

fillPatternScaleY(y)

get/set fill pattern scale y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill pattern scale y
var patternScaleY = shape.fillPatternScaleY();

// set fill pattern scale y
shape.fillPatternScaleY(2);

fillPatternX(x)

get/set fill pattern x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill pattern x
var fillPatternX = shape.fillPatternX();

// set fill pattern x
shape.fillPatternX(20);

fillPatternY(y)

get/set fill pattern y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill pattern y
var fillPatternY = shape.fillPatternY();

// set fill pattern y
shape.fillPatternY(20);

fillPriority(priority)

get/set fill priority. can be color, pattern, linear-gradient, or radial-gradient. The default is color. This is handy if you want to toggle between different fill types.
Parameters:
priority String
Returns:
Type
String
Example
// get fill priority
var fillPriority = shape.fillPriority();

// set fill priority
shape.fillPriority('linear-gradient');

fillRadialGradientColorStops(colorStops)

get/set fill radial gradient color stops
Parameters:
colorStops Number
Returns:
Type
Array
Example
// get fill radial gradient color stops
var colorStops = shape.fillRadialGradientColorStops();

// create a radial gradient that starts with red, changes to blue 
// halfway through, and then changes to green
shape.fillRadialGradientColorStops(0, 'red', 0.5, 'blue', 1, 'green');

fillRadialGradientEndPoint(endPoint)

get/set fill radial gradient end point
Parameters:
endPoint Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get fill radial gradient end point
var endPoint = shape.fillRadialGradientEndPoint();

// set fill radial gradient end point
shape.fillRadialGradientEndPoint({
  x: 20
  y: 10
});

fillRadialGradientEndPointX(x)

get/set fill radial gradient end point x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill radial gradient end point x
var endPointX = shape.fillRadialGradientEndPointX();

// set fill radial gradient end point x
shape.fillRadialGradientEndPointX(20);

fillRadialGradientEndPointY(y)

get/set fill radial gradient end point y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill radial gradient end point y
var endPointY = shape.fillRadialGradientEndPointY();

// set fill radial gradient end point y
shape.fillRadialGradientEndPointY(20);

fillRadialGradientEndRadius(radius)

get/set fill radial gradient end radius
Parameters:
radius Number
Returns:
Type
Number
Example
// get radial gradient end radius
var endRadius = shape.fillRadialGradientEndRadius();

// set radial gradient end radius
shape.fillRadialGradientEndRadius(100);

fillRadialGradientStartPoint(startPoint)

get/set fill radial gradient start point
Parameters:
startPoint Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get fill radial gradient start point
var startPoint = shape.fillRadialGradientStartPoint();

// set fill radial gradient start point
shape.fillRadialGradientStartPoint({
  x: 20
  y: 10
});

fillRadialGradientStartPointX(x)

get/set fill radial gradient start point x
Parameters:
x Number
Returns:
Type
Number
Example
// get fill radial gradient start point x
var startPointX = shape.fillRadialGradientStartPointX();

// set fill radial gradient start point x
shape.fillRadialGradientStartPointX(20);

fillRadialGradientStartPointY(y)

get/set fill radial gradient start point y
Parameters:
y Number
Returns:
Type
Number
Example
// get fill radial gradient start point y
var startPointY = shape.fillRadialGradientStartPointY();

// set fill radial gradient start point y
shape.fillRadialGradientStartPointY(20);

fillRadialGradientStartRadius(radius)

get/set fill radial gradient start radius
Parameters:
radius Number
Returns:
Type
Number
Example
// get radial gradient start radius
var startRadius = shape.fillRadialGradientStartRadius();

// set radial gradient start radius
shape.fillRadialGradientStartRadius(0);

fillRed(red)

get/set fill red component
Parameters:
red Integer
Returns:
Type
Integer
Example
// get fill red component
var fillRed = shape.fillRed();

// set fill red component
shape.fillRed(0);

filters(filters)

get/set filters. Filters are applied to cached canvases
Parameters:
filters Array array of filters
Returns:
Type
Array
Example
// get filters
var filters = node.filters();

// set a single filter
node.cache();
node.filters([Kinetic.Filters.Blur]);

// set multiple filters
node.cache();
node.filters([
  Kinetic.Filters.Blur,
  Kinetic.Filters.Sepia,
  Kinetic.Filters.Invert
]);

fire(eventType, evt, bubble)

fire event
Parameters:
eventType String event type. can be a regular event, like click, mouseover, or mouseout, or it can be a custom event, like myCustomEvent
evt EventObject <optional> event object
bubble Boolean <optional> setting the value to false, or leaving it undefined, will result in the event not bubbling. Setting the value to true will result in the event bubbling.
Returns:
Type
Kinetic.Node
Example
// manually fire click event
node.fire('click');

// fire custom event
node.fire('foo');

// fire custom event with custom event object
node.fire('foo', {
  bar: 10
});

// fire click event that bubbles
node.fire('click', null, true);

getAbsoluteOpacity()

get absolute opacity
Returns:
Type
Number

getAbsolutePosition()

get absolute position relative to the top left corner of the stage container div
Returns:
Type
Object

getAbsoluteTransform()

get absolute transform of the node which takes into account its ancestor transforms
Returns:
Type
Kinetic.Transform

getAbsoluteZIndex()

get absolute z-index which takes into account sibling and ancestor indices
Returns:
Type
Integer

getAncestors()

get ancestors
Returns:
Type
Kinetic.Collection
Example
shape.getAncestors().each(function(node) {
  console.log(node.getId());
})

getAttr(attr)

get attr
Parameters:
attr String
Returns:
Type
Integer | String | Object | Array
Example
var x = node.getAttr('x');

getAttrs()

get attrs object literal
Returns:
Type
Object

getCanvas()

get canvas renderer tied to the layer. Note that this returns a canvas renderer, not a canvas element
Returns:
Type
Kinetic.Canvas

getClassName()

get class name, which may return Stage, Layer, Group, or shape class names like Rect, Circle, Text, etc.
Returns:
Type
String

getContext()

get canvas context tied to the layer
Returns:
Type
Kinetic.Context

getDepth()

get node depth in node tree. Returns an integer. e.g. Stage depth will always be 0. Layers will always be 1. Groups and Shapes will always be >= 2
Returns:
Type
Integer

getHeight()

get height
Returns:
Type
Integer

getLayer()

get layer ancestor
Returns:
Type
Kinetic.Layer

getParent()

get parent container
Returns:
Type
Kinetic.Node

getStage()

get stage ancestor
Returns:
Type
Kinetic.Stage

getTransform()

get transform of the node
Returns:
Type
Kinetic.Transform

getType()

get the node type, which may return Stage, Layer, Group, or Node
Returns:
Type
String

getWidth()

get width
Returns:
Type
Integer

getZIndex()

get zIndex relative to the node’s siblings who share the same parent
Returns:
Type
Integer

green(green)

get/set filter green value
Parameters:
green Integer value between 0 and 255
Returns:
Type
Integer

hasFill()

returns whether or not the shape will be filled
Returns:
Type
Boolean

hasShadow()

returns whether or not a shadow will be rendered
Returns:
Type
Boolean

hasStroke()

returns whether or not the shape will be stroked
Returns:
Type
Boolean

height(height)

get/set height
Parameters:
height Number
Returns:
Type
Number
Example
// get height
var height = node.height();

// set height
node.height(100);

hide()

hide node. Hidden nodes are no longer detectable
Returns:
Type
Kinetic.Node

hitFunc(drawFunc)

get/set hit draw function
Parameters:
drawFunc function drawing function
Returns:
Type
function
Example
// get hit draw function
var hitFunc = shape.hitFunc();

// set hit draw function
shape.hitFunc(function(context) {
  context.beginPath();
  context.rect(0, 0, this.width(), this.height());
  context.closePath();
  context.fillStrokeShape(this);
});

hue(hue)

get/set hsv hue in degrees
Parameters:
hue Number value between 0 and 359
Returns:
Type
Number

hue(hue)

get/set hsv hue in degrees
Parameters:
hue Number value between 0 and 359
Returns:
Type
Number

id(id)

get/set id
Parameters:
id String
Returns:
Type
String
Example
// get id
var name = node.id();

// set id
node.id('foo');

innerRadius(innerRadius)

get/set innerRadius
Parameters:
innerRadius Number
Returns:
Type
Number
Example
// get inner radius
var innerRadius = arc.innerRadius();

// set inner radius
arc.innerRadius(20);

intersects(point)

determines if point is in the shape, regardless if other shapes are on top of it. Note: because this method clears a temporary canvas and then redraws the shape, it performs very poorly if executed many times consecutively. Please use the Kinetic.Stage#getIntersection method if at all possible because it performs much better
Parameters:
point Object
Properties
x Number
y Number
Returns:
Type
Boolean

isDragging()

determine if node is currently in drag and drop mode

isListening()

determine if node is listening for events by taking into account ancestors. Parent | Self | isListening listening | listening | ———-+———–+———— T | T | T T | F | F F | T | T F | F | F ———-+———–+———— T | I | T F | I | F I | I | T
Returns:
Type
Boolean

isVisible()

determine if node is visible by taking into account ancestors. Parent | Self | isVisible visible | visible | ———-+———–+———— T | T | T T | F | F F | T | T F | F | F ———-+———–+———— T | I | T F | I | F I | I | T
Returns:
Type
Boolean

kaleidoscopeAngle(degrees)

get/set kaleidoscope angle
Parameters:
degrees Integer
Returns:
Type
Integer

kaleidoscopePower(power)

get/set kaleidoscope power
Parameters:
power Integer of kaleidoscope
Returns:
Type
Integer

levels(level)

get/set levels. Must be a number between 0 and 1
Parameters:
level Number between 0 and 1
Returns:
Type
Number

lineCap(lineCap)

get/set line cap. Can be butt, round, or square
Parameters:
lineCap String
Returns:
Type
String
Example
// get line cap
var lineCap = shape.lineCap();

// set line cap
shape.lineCap('round');

lineJoin(lineJoin)

get/set line join. Can be miter, round, or bevel. The default is miter
Parameters:
lineJoin String
Returns:
Type
String
Example
// get line join
var lineJoin = shape.lineJoin();

// set line join
shape.lineJoin('round');

listening(listening)

get/set listenig attr. If you need to determine if a node is listening or not by taking into account its parents, use the isListening() method
Parameters:
listening Boolean | String Can be “inherit”, true, or false. The default is “inherit”.
Returns:
Type
Boolean | String
Example
// get listening attr
var listening = node.listening();

// stop listening for events
node.listening(false);

// listen for events
node.listening(true);

// listen to events according to the parent
node.listening('inherit');

move(change)

move node by an amount relative to its current position
Parameters:
change Object
Properties
x Number
y Number
Returns:
Type
Kinetic.Node
Example
// move node in x direction by 1px and y direction by 2px
node.move({
  x: 1,
  y: 2)
});

moveDown()

move node down
Returns:
Type
Boolean

moveTo(newContainer)

move node to another container
Parameters:
newContainer Container
Returns:
Type
Kinetic.Node
Example
// move node from current layer into layer2
node.moveTo(layer2);

moveToBottom()

move node to the bottom of its siblings
Returns:
Type
Boolean

moveToTop()

move node to the top of its siblings
Returns:
Type
Boolean

moveUp()

move node up
Returns:
Type
Boolean

name(name)

get/set name
Parameters:
name String
Returns:
Type
String
Example
// get name
var name = node.name();

// set name
node.name('foo');

noise(noise)

get/set noise amount. Must be a value between 0 and 1
Parameters:
noise Number
Returns:
Type
Number

off(evtStr)

remove event bindings from the node. Pass in a string of event types delimmited by a space to remove multiple event bindings at once such as ‘mousedown mouseup mousemove’. include a namespace to remove an event binding by name such as ‘click.foobar’. If you only give a name like ‘.foobar’, all events in that namespace will be removed.
Parameters:
evtStr String e.g. ‘click’, ‘mousedown touchstart’, ‘.foobar’
Returns:
Type
Kinetic.Node
Example
// remove listener
node.off('click');

// remove multiple listeners
node.off('click touchstart');

// remove listener by name
node.off('click.foo');

offsetY(y)

get/set offset y
Parameters:
y Number
Returns:
Type
Number
Example
// get offset y
var offsetY = node.offsetY();

// set offset y
node.offsetY(3);

on(evtStr, handler)

bind events to the node. KineticJS supports mouseover, mousemove, mouseout, mouseenter, mouseleave, mousedown, mouseup, click, dblclick, touchstart, touchmove, touchend, tap, dbltap, dragstart, dragmove, and dragend events. The Kinetic Stage supports contentMouseover, contentMousemove, contentMouseout, contentMousedown, contentMouseup, contentClick, contentDblclick, contentTouchstart, contentTouchmove, contentTouchend, contentTap, and contentDblTap. Pass in a string of events delimmited by a space to bind multiple events at once such as ‘mousedown mouseup mousemove’. Include a namespace to bind an event by name such as ‘click.foobar’.
Parameters:
evtStr String e.g. ‘click’, ‘mousedown touchstart’, ‘mousedown.foo touchstart.foo’
handler function The handler function is passed an event object
Returns:
Type
Kinetic.Node
Example
// add click listener
node.on('click', function() {
  console.log('you clicked me!');
});

// get the target node
node.on('click', function(evt) {
  console.log(evt.target);
});

// stop event propagation
node.on('click', function(evt) {
  evt.cancelBubble = true;
});

// bind multiple listeners
node.on('click touchstart', function() {
  console.log('you clicked/touched me!');
});

// namespace listener
node.on('click.foo', function() {
  console.log('you clicked/touched me!');
});

// get the event type
node.on('click tap', function(evt) {
  var eventType = evt.type;
});

// get native event object
node.on('click tap', function(evt) {
  var nativeEvent = evt.evt;
});

// for change events, get the old and new val
node.on('xChange', function(evt) {
  var oldVal = evt.oldVal;
  var newVal = evt.newVal;
});

opacity(opacity)

get/set opacity. Opacity values range from 0 to 1. A node with an opacity of 0 is fully transparent, and a node with an opacity of 1 is fully opaque
Parameters:
opacity Object
Returns:
Type
Number
Example
// get opacity
var opacity = node.opacity();

// set opacity
node.opacity(0.5);

outerRadius(outerRadius)

get/set outerRadius
Parameters:
outerRadius Number
Returns:
Type
Number
Example
// get outer radius
var outerRadius = arc.outerRadius();

// set outer radius
arc.outerRadius(20);

pixelSize(pixelSize)

get/set pixel size
Parameters:
pixelSize Integer
Returns:
Type
Integer

position(pos)

get/set node position relative to parent
Parameters:
pos Object
Properties
x Number
y Nubmer
Returns:
Type
Object
Example
// get position
var position = node.position();

// set position
node.position({
  x: 5
  y: 10
});

red(red)

get/set filter red value
Parameters:
red Integer value between 0 and 255
Returns:
Type
Integer

remove()

remove self from parent, but don’t destroy
Returns:
Type
Kinetic.Node
Example
node.remove();

rotate(theta)

rotate node by an amount in degrees relative to its current rotation
Parameters:
theta Number
Returns:
Type
Kinetic.Node

rotation(rotation)

get/set rotation in degrees
Parameters:
rotation Number
Returns:
Type
Number
Example
// get rotation in degrees
var rotation = node.rotation();

// set rotation in degrees
node.rotation(45);

saturation(saturation)

get/set hsv saturation
Parameters:
saturation Number 0 is no change, -1.0 halves the saturation, 1.0 doubles, etc..
Returns:
Type
Number

saturation(saturation)

get/set hsv saturation
Parameters:
saturation Number 0 is no change, -1.0 halves the saturation, 1.0 doubles, etc..
Returns:
Type
Number

scale(scale)

get/set scale
Parameters:
scale Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get scale
var scale = node.scale();

// set scale 
shape.scale({
  x: 2
  y: 3
});

scaleX(x)

get/set scale x
Parameters:
x Number
Returns:
Type
Number
Example
// get scale x
var scaleX = node.scaleX();

// set scale x
node.scaleX(2);

scaleY(y)

get/set scale y
Parameters:
y Number
Returns:
Type
Number
Example
// get scale y
var scaleY = node.scaleY();

// set scale y
node.scaleY(2);

sceneFunc(drawFunc)

get/set scene draw function
Parameters:
drawFunc function drawing function
Returns:
Type
function
Example
// get scene draw function
var sceneFunc = shape.sceneFunc();

// set scene draw function
shape.sceneFunc(function(context) {
  context.beginPath();
  context.rect(0, 0, this.width(), this.height());
  context.closePath();
  context.fillStrokeShape(this);
});

setAbsolutePosition(pos)

set absolute position
Parameters:
pos Object
Properties
x Number
y Number
Returns:
Type
Kinetic.Node

setAttr(attr, val)

set attr
Parameters:
attr String
val *
Returns:
Type
Kinetic.Node
Example
node.setAttr('x', 5);

setAttrs(config)

set multiple attrs at once using an object literal
Parameters:
config Object object containing key value pairs
Returns:
Type
Kinetic.Node
Example
node.setAttrs({
  x: 5,
  fill: 'red'
});

setId(id)

set id
Parameters:
id String
Returns:
Type
Kinetic.Node

setZIndex(zIndex)

set zIndex relative to siblings
Parameters:
zIndex Integer
Returns:
Type
Kinetic.Node

shadowAlpha(alpha)

get/set shadow alpha component. Alpha is a real number between 0 and 1. The default is 1.
Parameters:
alpha Number
Returns:
Type
Number
Example
// get shadow alpha component
var shadowAlpha = shape.shadowAlpha();

// set shadow alpha component
shape.shadowAlpha(0.5);

shadowBlue(blue)

get/set shadow blue component
Parameters:
blue Integer
Returns:
Type
Integer
Example
// get shadow blue component
var shadowBlue = shape.shadowBlue();

// set shadow blue component
shape.shadowBlue(0);

shadowBlur(blur)

get/set shadow blur
Parameters:
blur Number
Returns:
Type
Number
Example
// get shadow blur
var shadowBlur = shape.shadowBlur();

// set shadow blur
shape.shadowBlur(10);

shadowColor(color)

get/set shadow color
Parameters:
color String
Returns:
Type
String
Example
// get shadow color
var shadow = shape.shadowColor();

// set shadow color with color string
shape.shadowColor('green');

// set shadow color with hex
shape.shadowColor('#00ff00');

// set shadow color with rgb
shape.shadowColor('rgb(0,255,0)');

// set shadow color with rgba and make it 50% opaque
shape.shadowColor('rgba(0,255,0,0.5');

shadowEnabled(enabled)

get/set shadow enabled flag
Parameters:
enabled Boolean
Returns:
Type
Boolean
Example
// get shadow enabled flag
var shadowEnabled = shape.shadowEnabled();

// disable shadow
shape.shadowEnabled(false);

// enable shadow
shape.shadowEnabled(true);

shadowGreen(green)

get/set shadow green component
Parameters:
green Integer
Returns:
Type
Integer
Example
// get shadow green component
var shadowGreen = shape.shadowGreen();

// set shadow green component
shape.shadowGreen(255);

shadowOffset(offset)

get/set shadow offset
Parameters:
offset Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get shadow offset
var shadowOffset = shape.shadowOffset();

// set shadow offset
shape.shadowOffset({
  x: 20
  y: 10
});

shadowOffsetX(x)

get/set shadow offset x
Parameters:
x Number
Returns:
Type
Number
Example
// get shadow offset x
var shadowOffsetX = shape.shadowOffsetX();

// set shadow offset x
shape.shadowOffsetX(5);

shadowOffsetY(y)

get/set shadow offset y
Parameters:
y Number
Returns:
Type
Number
Example
// get shadow offset y
var shadowOffsetY = shape.shadowOffsetY();

// set shadow offset y
shape.shadowOffsetY(5);

shadowOpacity(opacity)

get/set shadow opacity. must be a value between 0 and 1
Parameters:
opacity Number
Returns:
Type
Number
Example
// get shadow opacity
var shadowOpacity = shape.shadowOpacity();

// set shadow opacity
shape.shadowOpacity(0.5);

shadowRed(red)

get/set shadow red component
Parameters:
red Integer
Returns:
Type
Integer
Example
// get shadow red component
var shadowRed = shape.shadowRed();

// set shadow red component
shape.shadowRed(0);

shouldDrawHit()

determine if listening is enabled by taking into account descendants. If self or any children have _isListeningEnabled set to true, then self also has listening enabled.
Returns:
Type
Boolean

show()

show node
Returns:
Type
Kinetic.Node

size(size)

get/set node size
Parameters:
size Object
Properties
width Number
height Number
Returns:
Type
Object
Example
// get node size
var size = node.size();
var x = size.x;
var y = size.y;

// set size
node.size({
  width: 100,
  height: 200
});

skew(skew)

get/set skew
Parameters:
skew Object
Properties
x Number
y Number
Returns:
Type
Object
Example
// get skew
var skew = node.skew();

// set skew 
node.skew({
  x: 20
  y: 10
});

skewX(x)

get/set skew x
Parameters:
x Number
Returns:
Type
Number
Example
// get skew x
var skewX = node.skewX();

// set skew x
node.skewX(3);

skewY(y)

get/set skew y
Parameters:
y Number
Returns:
Type
Number
Example
// get skew y
var skewY = node.skewY();

// set skew y
node.skewY(3);

startDrag()

initiate drag and drop

stopDrag()

stop drag and drop

stroke(color)

get/set stroke color
Parameters:
color String
Returns:
Type
String
Example
// get stroke color
var stroke = shape.stroke();

// set stroke color with color string
shape.stroke('green');

// set stroke color with hex
shape.stroke('#00ff00');

// set stroke color with rgb
shape.stroke('rgb(0,255,0)');

// set stroke color with rgba and make it 50% opaque
shape.stroke('rgba(0,255,0,0.5');

strokeAlpha(alpha)

get/set stroke alpha component. Alpha is a real number between 0 and 1. The default is 1.
Parameters:
alpha Number
Returns:
Type
Number
Example
// get stroke alpha component
var strokeAlpha = shape.strokeAlpha();

// set stroke alpha component
shape.strokeAlpha(0.5);

strokeBlue(blue)

get/set stroke blue component
Parameters:
blue Integer
Returns:
Type
Integer
Example
// get stroke blue component
var strokeBlue = shape.strokeBlue();

// set stroke blue component
shape.strokeBlue(0);

strokeEnabled(enabled)

get/set stroke enabled flag
Parameters:
enabled Boolean
Returns:
Type
Boolean
Example
// get stroke enabled flag
var strokeEnabled = shape.strokeEnabled();

// disable stroke
shape.strokeEnabled(false);

// enable stroke
shape.strokeEnabled(true);

strokeGreen(green)

get/set stroke green component
Parameters:
green Integer
Returns:
Type
Integer
Example
// get stroke green component
var strokeGreen = shape.strokeGreen();

// set stroke green component
shape.strokeGreen(255);

strokeRed(red)

get/set stroke red component
Parameters:
red Integer
Returns:
Type
Integer
Example
// get stroke red component
var strokeRed = shape.strokeRed();

// set stroke red component
shape.strokeRed(0);

strokeScaleEnabled(enabled)

get/set strokeScale enabled flag
Parameters:
enabled Boolean
Returns:
Type
Boolean
Example
// get stroke scale enabled flag
var strokeScaleEnabled = shape.strokeScaleEnabled();

// disable stroke scale
shape.strokeScaleEnabled(false);

// enable stroke scale
shape.strokeScaleEnabled(true);

strokeWidth(strokeWidth)

get/set stroke width
Parameters:
strokeWidth Number
Returns:
Type
Number
Example
// get stroke width
var strokeWidth = shape.strokeWidth();

// set stroke width
shape.strokeWidth();

threshold(threshold)

get/set threshold. Must be a value between 0 and 1
Parameters:
threshold Number
Returns:
Type
Number

toDataURL(config)

Creates a composite data URL. If MIME type is not specified, then “image/png” will result. For “image/jpeg”, specify a quality level as quality (range 0.0 – 1.0)
Parameters:
config Object
Properties
mimeType String <optional> can be “image/png” or “image/jpeg”. “image/png” is the default
x Number <optional> x position of canvas section
y Number <optional> y position of canvas section
width Number <optional> width of canvas section
height Number <optional> height of canvas section
quality Number <optional> jpeg quality. If using an “image/jpeg” mimeType, you can specify the quality from 0 to 1, where 0 is very poor quality and 1 is very high quality
Returns:
Type
String

toImage(config)

converts node into an image. Since the toImage method is asynchronous, a callback is required. toImage is most commonly used to cache complex drawings as an image so that they don’t have to constantly be redrawn
Parameters:
config Object
Properties
callback function function executed when the composite has completed
mimeType String <optional> can be “image/png” or “image/jpeg”. “image/png” is the default
x Number <optional> x position of canvas section
y Number <optional> y position of canvas section
width Number <optional> width of canvas section
height Number <optional> height of canvas section
quality Number <optional> jpeg quality. If using an “image/jpeg” mimeType, you can specify the quality from 0 to 1, where 0 is very poor quality and 1 is very high quality
Example
var image = node.toImage({
  callback: function(img) {
    // do stuff with img
  }
});

toJSON()

convert Node into a JSON string. Returns a JSON string.
Returns:
}
Type
String

toObject()

convert Node into an object for serialization. Returns an object.
Returns:
Type
Object

transformsEnabled(enabled)

get/set transforms that are enabled. Can be “all”, “none”, or “position”. The default is “all”
Parameters:
enabled String
Returns:
Type
String
Example
// enable position transform only to improve draw performance
node.transformsEnabled('position');

// enable all transforms
node.transformsEnabled('all');

value(value)

get/set hsv value
Parameters:
value Number 0 is no change, -1.0 halves the value, 1.0 doubles, etc..
Returns:
Type
Number

value(value)

get/set hsl luminance
Parameters:
value Number 0 is no change, -1.0 halves the value, 1.0 doubles, etc..
Returns:
Type
Number

visible(visible)

get/set visible attr. Can be “inherit”, true, or false. The default is “inherit”. If you need to determine if a node is visible or not by taking into account its parents, use the isVisible() method
Parameters:
visible Boolean | String
Returns:
Type
Boolean | String
Example
// get visible attr
var visible = node.visible();

// make invisible
node.visible(false);

// make visible
node.visible(true);

// make visible according to the parent
node.visible('inherit');

width(width)

get/set width
Parameters:
width Number
Returns:
Type
Number
Example
// get width
var width = node.width();

// set width
node.width(100);

x(x)

get/set x position
Parameters:
x Number
Returns:
Type
Object
Example
// get x
var x = node.x();

// set x
node.x(5);

y(y)

get/set y position
Parameters:
y Number
Returns:
Type
Integer
Example
// get y
var y = node.y();

// set y
node.y(5);

How to use properties, members and methods in kineticjs

Posted on by

Folks,

We have multiple properties like width,height,listening etc etc as shown below

width Number <optional>
height Number <optional>
visible Boolean <optional>
listening Boolean <optional> whether or not the node is listening for events

In the same manner we do even have methods like dragDistance,offsetX,dash,clone etc along with methods like dragDistance

Now my question is how to use this in efficient way? Thinking why questioning u 😉 even myself has same question 😛

I am a new bee, don’t scold me if i go wrong somewhere 😉

Properties can be used inside method like

var circle = new Kinetic.Circle({
                radius: 40,
                fill: 'blue',
                stroke: 'green',
                x: stage.getWidth() / 2,
                y: stage.getHeight() / 2,
                strokeWidth: 3
 
            });

Members can be used like

            circle.dash([10, 5]);
            circle.dashEnabled(true);
            circle.draggable(true);
            circle.dragDistance(30);

Methods can be used like this

Kinetic.dragDistance = 3;

Just run the below example in a notepad file to see a circle with outlined dash and even you can drag it.

Code:

<!DOCTYPE html>
 
<html lang="en">
    <head>
        
        <meta charset="utf-8" />
        <title></title>
    </head>
    <body>
        <div id="newcont"></div>
        <script src="kScript.js"></script>
        <script>
             //stage class
            var stage = new Kinetic.Stage({
                container: 'newcont', // container property
                width: 500, //width property
                height: 500 //height property
            });
            Kinetic.dragDistance = 30; // dragDistance method
            //layer class
            var layer = new Kinetic.Layer();
            // var node = new Node();
            // var dragDistance = circle.dragDistance();
 
            var circle = new Kinetic.Circle({
                radius: 40,
                fill: 'blue',
                stroke: 'green',
                x: stage.getWidth() / 2,
                y: stage.getHeight() / 2,
                strokeWidth: 3
 
            });
            circle.dash([10, 5]); //calling dash method
            circle.dashEnabled(true);
            circle.draggable(true);
            circle.dragDistance(30);
            layer.add(circle); // calling add method
            stage.add(layer);
        </script>
    </body>
</html>

Output:

24-06-2014 19-08-53

 

If u want to append a rectangle to the same layer of your stage, you can do that by adding child to add method like shown below..

layer.add(shape1, shape2, shape3);

In my example:
add rect in scrpits tags like

<script>
var rect = new Kinetic.Rect({
width: 100,
height: 50,
fill: ‘red’,
stroke: ‘black’,
strokeWidth: 5
});
</script>
finally modify layer.add method with “layer.add(circle,rect);”. Thats it. You can see both shapes in your stage like shown below..

24-06-2014 19-22-08

Generic properties used in kinetic js

Posted on by
container String | DomElement Container id or DOM element
x Number <optional>
y Number <optional>
width Number <optional>
height Number <optional>
visible Boolean <optional>
listening Boolean <optional> whether or not the node is listening for events
id String <optional> unique id
name String <optional> non-unique name
opacity Number <optional> determines node opacity. Can be any number between 0 and 1
scale Object <optional> set scale
scaleX Number <optional> set scale x
scaleY Number <optional> set scale y
rotation Number <optional> rotation in degrees
offset Object <optional> offset from center point and rotation point
offsetX Number <optional> set offset x
offsetY Number <optional> set offset y
draggable Boolean <optional> makes the node draggable. When stages are draggable, you can drag and drop the entire stage by dragging any portion of the stage
dragDistance Number <optional>
dragBoundFunc function <optional>
clipFunc function <optional> clipping function
angle Number in degrees
innerRadius Number
outerRadius Number
clockwise Boolean <optional>
fill String <optional> fill color
fillRed Integer <optional> set fill red component
fillGreen Integer <optional> set fill green component
fillBlue Integer <optional> set fill blue component
fillAlpha Integer <optional> set fill alpha component
fillPatternImage Image <optional> fill pattern image
fillPatternX Number <optional>
fillPatternY Number <optional>
fillPatternOffset Object <optional> object with x and y component
fillPatternOffsetX Number <optional>
fillPatternOffsetY Number <optional>
fillPatternScale Object <optional> object with x and y component
fillPatternScaleX Number <optional>
fillPatternScaleY Number <optional>
fillPatternRotation Number <optional>
fillPatternRepeat String <optional> can be “repeat”, “repeat-x”, “repeat-y”, or “no-repeat”. The default is “no-repeat”
fillLinearGradientStartPoint Object <optional> object with x and y component
fillLinearGradientStartPointX Number <optional>
fillLinearGradientStartPointY Number <optional>
fillLinearGradientEndPoint Object <optional> object with x and y component
fillLinearGradientEndPointX Number <optional>
fillLinearGradientEndPointY Number <optional>
fillLinearGradientColorStops Array <optional> array of color stops
fillRadialGradientStartPoint Object <optional> object with x and y component
fillRadialGradientStartPointX Number <optional>
fillRadialGradientStartPointY Number <optional>
fillRadialGradientEndPoint Object <optional> object with x and y component
fillRadialGradientEndPointX Number <optional>
fillRadialGradientEndPointY Number <optional>
fillRadialGradientStartRadius Number <optional>
fillRadialGradientEndRadius Number <optional>
fillRadialGradientColorStops Array <optional> array of color stops
fillEnabled Boolean <optional> flag which enables or disables the fill. The default value is true
fillPriority String <optional> can be color, linear-gradient, radial-graident, or pattern. The default value is color. The fillPriority property makes it really easy to toggle between different fill types. For example, if you want to toggle between a fill color style and a fill pattern style, simply set the fill property and the fillPattern properties, and then use setFillPriority(‘color’) to render the shape with a color fill, or use setFillPriority(‘pattern’) to render the shape with the pattern fill configuration
stroke String <optional> stroke color
strokeRed Integer <optional> set stroke red component
strokeGreen Integer <optional> set stroke green component
strokeBlue Integer <optional> set stroke blue component
strokeAlpha Integer <optional> set stroke alpha component
strokeWidth Number <optional> stroke width
strokeScaleEnabled Boolean <optional> flag which enables or disables stroke scale. The default is true
strokeEnabled Boolean <optional> flag which enables or disables the stroke. The default value is true
lineJoin String <optional> can be miter, round, or bevel. The default is miter
lineCap String <optional> can be butt, round, or sqare. The default is butt
shadowColor String <optional>
shadowRed Integer <optional> set shadow color red component
shadowGreen Integer <optional> set shadow color green component
shadowBlue Integer <optional> set shadow color blue component
shadowAlpha Integer <optional> set shadow color alpha component
shadowBlur Number <optional>
shadowOffset Object <optional> object with x and y component
shadowOffsetX Number <optional>
shadowOffsetY Number <optional>
shadowOpacity Number <optional> shadow opacity. Can be any real number between 0 and 1
shadowEnabled Boolean <optional> flag which enables or disables the shadow. The default value is true
dash Array <optional>
dashEnabled Boolean <optional> flag which enables or disables the dashArray. The default value is true