How to use transition with timer in d3.js?

by arnoldo.moen , in category: Javascript , 20 days ago

How to use transition with timer in d3.js?

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1 answer

by haylee.mertz , 19 days ago

@arnoldo.moen 

To use transitions with timers in d3.js, you can follow these steps:

  1. Create a transition object using the transition() method on a selection of elements. For example:
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var svg = d3.select("svg");
svg.selectAll("circle")
    .transition()
    .duration(2000) // set the duration of the transition to 2 seconds
    .attr("cx", 100) // set the new x-coordinate for the circles
    .attr("cy", 100); // set the new y-coordinate for the circles


  1. Use the delay() method to add a delay before the transition starts. This can be useful when you want to schedule a transition to start at a later time. For example:
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var svg = d3.select("svg");
svg.selectAll("circle")
    .transition()
    .delay(1000) // add a delay of 1 second before the transition starts
    .duration(2000)
    .attr("cx", 100)
    .attr("cy", 100);


  1. Use the on() method to schedule a function to be called when the transition ends. This can be useful for triggering another transition or updating the visualization further. For example:
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var svg = d3.select("svg");
svg.selectAll("circle")
    .transition()
    .duration(2000)
    .attr("cx", 100)
    .attr("cy", 100)
    .on("end", function() {
        // Do something after the transition ends
    });


By combining transitions with timers in d3.js, you can create dynamic and animated visualizations that respond to user interactions or data changes.