javascript - Change scale based on relative mouse hover distance? -


i want scale increase mouse hovers closer object, , max scale should when mouse hovers on center. how can using javascript?

function myfunction() {    document.getelementsbytagname("circle")[0].setattribute("r", "100");  }
svg {    border-style: solid;    border-color: black;    background-color: white;  }
<svg>  <circle cx="145" cy="80" r="40" fill="red" onmouseover="myfunction()"/>  </svg>    <p>    move mouse closer circle increase size  </p>

https://jsfiddle.net/tahirjuba/2r5ufd8z/7/

do mean this?

var circle = document.getelementbyid("circle");    function myfunction(evt) {    var r = math.abs(evt.x - parseint(evt.target.getattribute('cx'), 10)) + math.abs(evt.y - parseint(evt.target.getattribute('cy'), 10));    r += 10;    document.getelementsbytagname("circle")[0].setattribute("r", r);  }
svg {    border-style: solid;    border-color: black;    background-color: white;  }
<svg>  <circle id="circle" cx="145" cy="80" r="40" fill="red" onmousemove="myfunction(evt)"/>  </svg>    <p>    move mouse closer circle increase size  </p>


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