CODEWITHSUNDEEP
javascriptd3.js
Samuel
Samuel

Reputation: 119

D3.js - Use newline character in rendered text

I wish to use newline characters for the node text in the following code:

http://jsfiddle.net/cyril123/0vbtvoon/22/

I would like the text to have a new line for each word. For example, 'Joe Bloggs' would become 'Joe \nBloggs' where \n is the line break.

The problem lies on line 184 of the javascript with:

nodes.append("text")
        .text(function (d) {
        return d.name;
    })

I cannot work out how to cause a line break for node text. What is the best way to achieve this?

Upvotes: 2

Views: 2885

Answers (1)

zacran
zacran

Reputation: 865

Unfortunately, you will have to write a function to manually break out the text into separate lines. Mike Bostock has a nice function written already though:

function wrap(text, width) {
  text.each(function() {
    var text = d3.select(this),
        words = text.text().split(/\s+/).reverse(),
        word,
        line = [],
        lineNumber = 0,
        lineHeight = 1.1, // ems
        y = text.attr("y"),
        dy = parseFloat(text.attr("dy")),
        tspan = text.text(null).append("tspan").attr("x", 0).attr("y", y).attr("dy", dy + "em");
    while (word = words.pop()) {
      line.push(word);
      tspan.text(line.join(" "));
      if (tspan.node().getComputedTextLength() > width) {
        line.pop();
        tspan.text(line.join(" "));
        line = [word];
        tspan = text.append("tspan").attr("x", 0).attr("y", y).attr("dy", ++lineNumber * lineHeight + dy + "em").text(word);
      }
    }
  });
}

Upvotes: 4

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