How to make single bar as 3d effect in d3.js?

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by ryleigh , in category: Javascript , 3 months ago

How to make single bar as 3d effect in d3.js?

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1 answer

Member

by kadin , 3 months ago

@ryleigh 

To create a single bar with a 3D effect in D3.js, you can add depth to the bar by creating additional rectangles to represent the top and right sides of the bar. Here's a step-by-step guide on how to achieve this:

  1. Define the data for the bar:
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let data = [10]; // Single number representing the height of the bar


  1. Create an SVG element to contain the bar:
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let svg = d3.select("body")
  .append("svg")
  .attr("width", 200)
  .attr("height", 200);


  1. Create the main rectangle for the bar:
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svg.selectAll("rect")
  .data(data)
  .enter()
  .append("rect")
  .attr("x", 50)
  .attr("y", 50)
  .attr("width", 50)
  .attr("height", d => d * 10) // Change the multiplier to adjust the height of the bar
  .style("fill", "blue");


  1. Create the top side of the bar:
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svg.selectAll(".top-side")
  .data(data)
  .enter()
  .append("rect")
  .attr("class", "top-side")
  .attr("x", 50)
  .attr("y", 50)
  .attr("width", 50)
  .attr("height", 5) // Adjust the height of the top side rectangle
  .style("fill", "darkblue");


  1. Create the right side of the bar:
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svg.selectAll(".right-side")
  .data(data)
  .enter()
  .append("rect")
  .attr("class", "right-side")
  .attr("x", 100)
  .attr("y", 50)
  .attr("width", 5) // Adjust the width of the right side rectangle
  .attr("height", d => d * 10)
  .style("fill", "lightblue");


By following these steps, you should be able to create a single bar with a 3D effect in D3.js. Feel free to adjust the dimensions and colors of the rectangles to customize the appearance of the bar.