19 - Interactive text rotation with d3.jsHTML input and multiple d3.js objects

forked from adry34160's block: 18 - Interactive text rotation with d3.js

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<p>
  <label for="nAngle"
         style="display: inline-block; width: 240px; text-align: right">
    angle = <span id="nAngle-value">...</span>
  </label>
  <input type="range" min="0" max="360" id="nAngle">
</p>

var width = 600;
  var height = 300;
  
  var holder = d3.select("body")
  	.append("svg")
  	.attr("width", width)
  	.attr("height", height);
  
  // draw the d3.js text
  holder.append("text")
  	.attr("class", "d3js")
  	.style("fill", "black")
  	.style("font-size", "56px")
  	.attr("dy", ".35em")
  	.attr("text-anchor", "middle")
  	.attr("transform", "translate(300,55) rotate(0)")
  	.text("d3.js");
  
  // draw the let it bi text
  holder.append("text")
  	.attr("class", "letitbi")
  	.style("fill", "black")
  	.style("font-size", "56px")
  	.attr("dy", ".35em")
  	.attr("text-anchor", "middle")
  	.attr("transform", "translate(300,130) rotate(0)")
  	.text("letitbi.net");
  
  // when the input range changes update the angle
  d3.select("#nAngle").on("input", function() {
    update(+this.value);
  })
  
  // initial starting angle of the text
  update(0);
  
  function update(nAngle) {
    
    //adjust the text on the range slicer
    d3.select("#nAngle-value").text(nAngle);
    d3.select("#nAngle").property("value", nAngle);
    
    // rotate the text
    holder.select("text.d3js")
    	.attr("transform", "translate(300, 55) rotate("+nAngle+")");
    
    // rotate the text
    holder.select("text.letitbi")
    	.attr("transform", "translate(300, 130) rotate("+(360-nAngle)+")");
    
  }
    
</script>

https://d3js.org/d3.v4.min.js