How to center align text labels on bar chart using d3js












1















I've the following bar chart which is built using d3. I'm unable to center the bar labels over the bars. Eg. 40% is not center aligned to the bar.



Snippet:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








javascript css d3.js svg







share|improve this question























  • I remember of helping you with the centering of the bar texts/labels in this post. Do you think that's helpful?

    – Shashank
    Jan 2 at 18:43











  • @Shashank unable to fix the problem here.

    – Raviteja
    Jan 2 at 18:45
















1















I've the following bar chart which is built using d3. I'm unable to center the bar labels over the bars. Eg. 40% is not center aligned to the bar.



Snippet:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








javascript css d3.js svg







share|improve this question























  • I remember of helping you with the centering of the bar texts/labels in this post. Do you think that's helpful?

    – Shashank
    Jan 2 at 18:43











  • @Shashank unable to fix the problem here.

    – Raviteja
    Jan 2 at 18:45














1












1








1








I've the following bar chart which is built using d3. I'm unable to center the bar labels over the bars. Eg. 40% is not center aligned to the bar.



Snippet:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








javascript css d3.js svg







share|improve this question














I've the following bar chart which is built using d3. I'm unable to center the bar labels over the bars. Eg. 40% is not center aligned to the bar.



Snippet:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>





var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>





javascript css d3.js svg




javascript css d3.js svg






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 1 at 7:01









RavitejaRaviteja

2,23482443




2,23482443













  • I remember of helping you with the centering of the bar texts/labels in this post. Do you think that's helpful?

    – Shashank
    Jan 2 at 18:43











  • @Shashank unable to fix the problem here.

    – Raviteja
    Jan 2 at 18:45



















  • I remember of helping you with the centering of the bar texts/labels in this post. Do you think that's helpful?

    – Shashank
    Jan 2 at 18:43











  • @Shashank unable to fix the problem here.

    – Raviteja
    Jan 2 at 18:45

















I remember of helping you with the centering of the bar texts/labels in this post. Do you think that's helpful?

– Shashank
Jan 2 at 18:43





I remember of helping you with the centering of the bar texts/labels in this post. Do you think that's helpful?

– Shashank
Jan 2 at 18:43













@Shashank unable to fix the problem here.

– Raviteja
Jan 2 at 18:45





@Shashank unable to fix the problem here.

– Raviteja
Jan 2 at 18:45












2 Answers
2






active

oldest

votes


















0














Don't use a hard coded bar width. Use the padding of the scaleBand.



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);


To center the text set the following attribute



  .attr("text-anchor", "middle")







var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer
























  • But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

    – Raviteja
    Jan 1 at 9:17













  • the position of the tick will not change, so is the center position of the text.

    – rioV8
    Jan 1 at 10:42



















0














With the existing code, you were able to position the texts by the start of the bars, right?



Slightly modifying the code based on the text widths (as posted in my previous answer),



.attr('x', function(d) {

   return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

});


Here's a snippet with the modified code:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer
























  • Does this help to center align the labels?

    – Shashank
    Jan 7 at 14:14











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2 Answers
2






active

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votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Don't use a hard coded bar width. Use the padding of the scaleBand.



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);


To center the text set the following attribute



  .attr("text-anchor", "middle")







var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer
























  • But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

    – Raviteja
    Jan 1 at 9:17













  • the position of the tick will not change, so is the center position of the text.

    – rioV8
    Jan 1 at 10:42
















0














Don't use a hard coded bar width. Use the padding of the scaleBand.



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);


To center the text set the following attribute



  .attr("text-anchor", "middle")







var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer
























  • But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

    – Raviteja
    Jan 1 at 9:17













  • the position of the tick will not change, so is the center position of the text.

    – rioV8
    Jan 1 at 10:42














0












0








0







Don't use a hard coded bar width. Use the padding of the scaleBand.



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);


To center the text set the following attribute



  .attr("text-anchor", "middle")







var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer













Don't use a hard coded bar width. Use the padding of the scaleBand.



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);


To center the text set the following attribute



  .attr("text-anchor", "middle")







var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>





var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

//var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) { return d.desc; }))

  .range([0, width])

  .padding(0.6);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll(".bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", xScale.bandwidth())

  .attr('x', d => xScale(d.desc));



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll(".bar2")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc))

  .attr("y", function(d) { return yScale(d.val); })

  .attr("height", function(d) { return height - yScale(d.val); })

  .attr("width", xScale.bandwidth());





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("text-anchor", "middle")

  .attr("y", function(d) { return yScale(d.val) - 5; })

  .attr('x', function(d) { return xScale(d.desc) + xScale.bandwidth() / 2; });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 1 at 9:16









rioV8rioV8

4,5742312




4,5742312













  • But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

    – Raviteja
    Jan 1 at 9:17













  • the position of the tick will not change, so is the center position of the text.

    – rioV8
    Jan 1 at 10:42



















  • But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

    – Raviteja
    Jan 1 at 9:17













  • the position of the tick will not change, so is the center position of the text.

    – rioV8
    Jan 1 at 10:42

















But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

– Raviteja
Jan 1 at 9:17







But I need the width of the bars to be 40. Is there a way with width as 40? I'm able to align text to center with bandwidth.

– Raviteja
Jan 1 at 9:17















the position of the tick will not change, so is the center position of the text.

– rioV8
Jan 1 at 10:42





the position of the tick will not change, so is the center position of the text.

– rioV8
Jan 1 at 10:42













0














With the existing code, you were able to position the texts by the start of the bars, right?



Slightly modifying the code based on the text widths (as posted in my previous answer),



.attr('x', function(d) {

   return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

});


Here's a snippet with the modified code:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer
























  • Does this help to center align the labels?

    – Shashank
    Jan 7 at 14:14
















0














With the existing code, you were able to position the texts by the start of the bars, right?



Slightly modifying the code based on the text widths (as posted in my previous answer),



.attr('x', function(d) {

   return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

});


Here's a snippet with the modified code:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer
























  • Does this help to center align the labels?

    – Shashank
    Jan 7 at 14:14














0












0








0







With the existing code, you were able to position the texts by the start of the bars, right?



Slightly modifying the code based on the text widths (as posted in my previous answer),



.attr('x', function(d) {

   return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

});


Here's a snippet with the modified code:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








share|improve this answer













With the existing code, you were able to position the texts by the start of the bars, right?



Slightly modifying the code based on the text widths (as posted in my previous answer),



.attr('x', function(d) {

   return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

});


Here's a snippet with the modified code:






var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>








var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>





var margin = {

  top: 10,

  right: 0,

  bottom: 58,

  left: 40

};

var width = 400 - margin.left - margin.right;

var height = 400 - margin.top - margin.bottom;

var barWidth = 40;



var graph;

var xScale;

var yScale;

var dataSet;



dataSet = [{

  desc: 'test1',

  val: 40

}, {

  desc: 'some dummy text here',

  val: 120

}];



xScale = d3.scaleBand()

  .domain(dataSet.map(function(d) {

    return d.desc;

  }))

  .range([0, width]);



yScale = d3.scaleLinear()

  .range([height, 0])

  .domain([0, 1.15 * d3.max(dataSet, function(d) {

    return d.val;

  })]);



graph = d3.select("#graph")

  .append("svg")

  .attr("class", "bar-chart")

  .attr("width", width + margin.left + margin.right)

  .attr("height", height + margin.top + margin.bottom)

  .append("g")

  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");





graph.append("g")

  .attr("class", "x-scale")

  .attr("transform", "translate(0," + height + ")")

  .call(d3.axisBottom(xScale))

  .selectAll(".tick text")

  .call(wrap, xScale.bandwidth());



graph.append("g")

  .attr("class", "y-scale")

  .call(d3.axisLeft(yScale).tickPadding(10));



graph

  .append("g")

  .attr('class', 'graph-placeholder')

  .selectAll("rect")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar1")

  .attr("height", height)

  .attr("width", barWidth)

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2);



graph

  .append("g")

  .attr('class', 'graph-main')

  .selectAll("bar1")

  .data(dataSet)

  .enter()

  .append("rect")

  .attr("class", "bar2")

  .attr('x', d => xScale(d.desc) + (xScale.bandwidth() - barWidth) / 2)

  .attr("y", function(d) {

    return yScale(d.val);

  })

  .attr("height", function(d) {

    return height - yScale(d.val);

  })

  .attr("width", barWidth);





graph

  .append("g")

  .attr('class', 'bar-label')

  .selectAll("text")

  .data(dataSet)

  .enter()

  .append("text")

  .text(d => d.val+ '%')

  .attr("y", function(d) {

    return yScale(d.val) - 5;

  }).attr('x', function(d) {

    return xScale(d.desc) + ((xScale.bandwidth() - barWidth) / 2) + (barWidth/2 - d3.select(this).node().getBBox().width/2);

  });



function wrap(text, width) {

  text.each(function() {

    var text = d3.select(this),

      words = text.text().split(/s+/).reverse(),

      word,

      line = ,

      lineNumber = 0,

      lineHeight = 1,

      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);

      }

    }

  });

}

.bar2 {

  fill: steelblue;

}



.bar1 {

  fill: #f2f2f2;

}



text {

  font-size: 12px;

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>

<div class="container">

  <div id="graph"></div>

</div>






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 2 at 19:06









ShashankShashank

4,6251513




4,6251513













  • Does this help to center align the labels?

    – Shashank
    Jan 7 at 14:14



















  • Does this help to center align the labels?

    – Shashank
    Jan 7 at 14:14

















Does this help to center align the labels?

– Shashank
Jan 7 at 14:14





Does this help to center align the labels?

– Shashank
Jan 7 at 14:14


















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