Old school D3 from simpler times

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shimizu

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SVG textで改行 part.3

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<!DOCTYPE html>
<head>
<meta charset="utf-8">
<title>SVG textで改行</title>
<style>
	body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
	svg { width: 100%; height: 100%; }
</style>
</head>

<body>
<svg></svg>

<script src="//cdnjs.cloudflare.com/ajax/libs/d3/4.3.0/d3.min.js"></script>    
<script>
!(function(){
	"use strict"
	
	var textArray = ["1行目、あ","2行目", "3行目あああああ", "4行目あ"]
	var svg = d3.select("svg");    
		
	svg .append("text")
		.datum(textArray)
		.attr("transform", "translate(100, 100)")
		.each(leftLinebreak)
	
	svg .append("text")
		.datum(textArray)
		.attr("transform", "translate(100, 200)")
		.each(rightLinebreak)
	
	svg .append("text")
		.datum(textArray)
		.attr("transform", "translate(100, 300)")
		.each(centerLinebreak)
	
	function leftLinebreak(array){
		d3.select(this).selectAll("tspan")
			.data(array)
			.enter()
			.append("tspan")
			.attr("x", "0em")
			.attr("y", function(d,i){ return i + "em"})
			.text(function(d){ return d })
	}
	  
	function rightLinebreak(array){
		var maxTextLength = d3.max(array, function(d){ return d.length })
	
		d3.select(this).selectAll("tspan")
			.data(array)
			.enter()
			.append("tspan")
			.attr("x", function(d,i){
				var l = maxTextLength - d.length ;
				return l + "em"
			})
			.attr("y", function(d,i){ return i + "em"})
			.text(function(d){ return d })    
	}
	  
	function centerLinebreak(array){
		var maxTextLength = d3.max(array, function(d){ return d.length })
		
		d3.select(this).selectAll("tspan")
			.data(array)
			.enter()
			.append("tspan")
			.attr("x", function(d,i){
				var l = (maxTextLength - d.length) /2
				return l + "em"
			})
			.attr("y", function(d,i){ return i + "em"})
			.text(function(d){ return d })
	
	}
  	
}());

</script>
</body>

https://cdnjs.cloudflare.com/ajax/libs/d3/4.3.0/d3.min.js