3D Hover Options in JavaScript

How to customize hover options for 3d charts.

Plotly Studio: Transform any dataset into an interactive data application in minutes with AI. Try Plotly Studio now.

Customize Hover for Spikelines

By default, Plotly's 3D plots display lines called "spikelines" while hovering over a point. These lines project from the hover point to each of the three axes' normal planes and then extend from those projection data points to the planes' wall boundaries.

function getrandom(num , mul) 
	{
	 var value = [ ];
	 for(i=0;i<=num;i++)
	 {
	  var rand = Math.random() * mul;
	  value.push(rand);
	 }
	 return value;
	}


var data=[
    {
     opacity:0.4,
     type: 'scatter3d',
     x: getrandom(50 , -75),
     y: getrandom(50 , -75),
     z: getrandom(50 , -75),
    },
];
var layout = {
  scene:{
    xaxis: {
		 spikecolor: '#1fe5bd',
		 spikesides: false,
		 spikethickness: 6
  	 	},
  	 yaxis: {
		 spikecolor: '#1fe5bd',
		 spikesides: false,
		 spikethickness: 6
  		},
  	 zaxis: {
		 spikecolor: '#1fe5bd',
		 spikethickness: 6
  		}
  },
};
Plotly.newPlot('myDiv', data, layout);

</script>\n</head>\n\n<body>\n\t<div id='myDiv'></div>\n</body>","js":"function getrandom(num , mul) \n\t{\n\t var value = [ ];\n\t for(i=0;i<=num;i++)\n\t {\n\t var rand = Math.random() * mul;\n\t value.push(rand);\n\t }\n\t return value;\n\t}\n\n\nvar data=[\n {\n opacity:0.4,\n type: 'scatter3d',\n x: getrandom(50 , -75),\n y: getrandom(50 , -75),\n z: getrandom(50 , -75),\n },\n];\nvar layout = {\n scene:{\n xaxis: {\n\t\t spikecolor: '#1fe5bd',\n\t\t spikesides: false,\n\t\t spikethickness: 6\n \t \t},\n \t yaxis: {\n\t\t spikecolor: '#1fe5bd',\n\t\t spikesides: false,\n\t\t spikethickness: 6\n \t\t},\n \t zaxis: {\n\t\t spikecolor: '#1fe5bd',\n\t\t spikethickness: 6\n \t\t}\n },\n};\nPlotly.newPlot('myDiv', data, layout);\n "}">

Customize Hover for Surface Contours

In addition to spikelines, Plotly 3D Surface plots also display surface contours on hover by default. These are customized by styling the contours attribute in the surface trace.

x = [10,20,30,40]
y = [0,1,2,3]
z = [
	[2,2,2,3],
	[1,1,1,1],
	[1,1,0,0],
	[0,0,0,0]
];

var data=[
    {
     opacity:0.9,
     type: 'surface',
     x:x, y:y, z:z,
	  contours: {
		 x: {
			 highlight: true,
			 highlightcolor: "#41a7b3"
         },
		 y: { highlight: false },
		 z: { highlight: false}
	}
    },
];
var layout = {
  scene:{
    xaxis: { showspikes: false },
    yaxis: { showspikes: false },
    zaxis: { showspikes: false }
  },
};
Plotly.newPlot('myDiv', data, layout);