How to select an object in kineticjs?

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by aubrey , in category: Javascript , a month ago

How to select an object in kineticjs?

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1 answer

by herminia_bruen , a month ago

@aubrey 

To select an object in KineticJS, you can use the getIntersection() method on the stage or layer object. This method takes the mouse coordinates as parameters and returns the topmost shape that intersects with those coordinates.


Here is an example of how to select an object in KineticJS:

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var stage = new Kinetic.Stage({
    container: 'container',
    width: 500,
    height: 500
});

var layer = new Kinetic.Layer();

var rect = new Kinetic.Rect({
    x: 100,
    y: 100,
    width: 100,
    height: 100,
    fill: 'red'
});

layer.add(rect);
stage.add(layer);

// Event listener to select object on click
stage.on('click', function(e) {
    var pos = stage.getPointerPosition();
    var shape = stage.getIntersection(pos);

    if(shape) {
        console.log('Selected object:', shape);
    }
});


In this example, when you click on the stage, the getIntersection() method is used to find the object that intersects with the mouse coordinates. If an object is found, its details are logged to the console.