Interact with Circles Through Mouse Movements with d3.js Animation

I am currently utilizing the d3.js library and facing a challenge in meeting the client's requirements.

The client has requested for "circles to turn black" and "follow" the mouse when hovered over.

I am unsure if d3.js library supports such a feature as I can only find options for mouse drag interaction.

You can view my sample code on JSFiddle below:

node.on("mousemove", function(){
    var coords = d3.mouse(this);
    //node.attr('transform', 'translate(' + coords[0] + ',' + coords[1] + ')';
    nodes.call(force.drag); 
});

JSFiddle link: https://jsfiddle.net/glenmongaya/4pjaeko3/5/

Thank you in advance for your assistance.

javascriptanimationd3.jsgeometry

Answer №1

Do you need a mouse-over effect to simulate dragging?

node.on("mousemove", function(d){
    d3.event.stopPropagation(); // prevent default event handling
    d.fixed = true; // lock the node being moused over
    var coords = d3.mouse(this.parentNode); // obtain mouse coordinates
    d.px = coords[0]; d.py = coords[1]; // set new position
    force.resume(); // continue with layout
});

Check out the updated fiddle here.

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