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Axis values transition
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <style> | |
| line { | |
| stroke: black; | |
| shape-rendering: crispEdges; | |
| } | |
| text { | |
| text-anchor: middle; | |
| } | |
| </style> | |
| </head> | |
| <div id='chart'></div> | |
| <form-group> | |
| <label for="from">From:</label> | |
| <input type="number" min="0" max="360" step="1" value="40" id="from"> | |
| <label for="to">To:</label> | |
| <input type="number" min="0" max="360" step="1" value="50" id="to"> | |
| <button id="change-button" onclick="updateAxis()">Update</button> | |
| </form-group> | |
| <body> | |
| <script> | |
| console.clear() | |
| let ticks1 = [ 1, 2, 3, 4, 5, 6, 7] | |
| let width = 500 | |
| let margin = 50 | |
| let fromInput = d3.select("#from"); | |
| let toInput = d3.select("#to"); | |
| let format = d3.format(",.0f") | |
| let xScale = d3.scaleLinear() | |
| .domain(d3.extent(ticks1)) | |
| .range([0, width]) | |
| let xAxis = d3.axisBottom(xScale) | |
| .tickValues(ticks1) | |
| .tickFormat(format) | |
| var svg = d3.select("#chart").append("svg") | |
| .attr("width", width + margin + margin) | |
| .attr("height", margin + margin) | |
| let axes = svg.append("g") | |
| .attr("transform", "translate(" + margin + ", " + margin + ")") | |
| let domain = axes.append("line") | |
| .attr("x1", 0) | |
| .attr("x2", width) | |
| .attr("y1", 0) | |
| .attr("y2", 0) | |
| let xAxisG = axes.append("g") | |
| .attr("transform", axisTranslate(ticks1)) | |
| let ticks = xAxisG.selectAll(".tick") | |
| .data(ticks1, d => d) | |
| .enter() | |
| .append("g") | |
| .attr("class", "tick") | |
| .attr("transform", tickTranslate) | |
| ticks.append("line") | |
| .attr("x1", 0) | |
| .attr("x2", 0) | |
| .attr("y1", -15) | |
| .attr("y2", -19) | |
| ticks.append("text") | |
| .text(d => d) | |
| function updateAxis(){ | |
| let currentTicks = ticks1 | |
| let fromNumber = fromInput.property("value") | |
| let toNumber = toInput.property("value") | |
| if (fromNumber > toNumber) { | |
| let holder = toNumber | |
| toNumber = fromNumber | |
| fromNumber = holder | |
| } | |
| let newTicks = [fromNumber, toNumber] | |
| // increase the number of ticks | |
| let extentAllTicks = d3.extent(currentTicks.concat(newTicks)) | |
| let intermediateTicks = d3.range(extentAllTicks[0], extentAllTicks[1] + 1) | |
| ticks = xAxisG.selectAll(".tick") | |
| .data(intermediateTicks, d => d) | |
| .join("g") | |
| .attr("class", "tick") | |
| .attr("transform", tickTranslate) | |
| ticks.append("text") | |
| .text(d => d) | |
| ticks.append("line") | |
| .attr("x1", 0) | |
| .attr("x2", 0) | |
| .attr("y1", -15) | |
| .attr("y2", -19) | |
| xScale | |
| .domain(newTicks) | |
| .range([0, width]) | |
| ticks.transition() | |
| .duration(5000) | |
| .attr("transform", tickTranslate) | |
| ticks.selectAll('text, line') | |
| .transition() | |
| .duration(7000) | |
| .style("opacity", function(d){ | |
| return (d >= newTicks[0] && d <= newTicks[1]) ? 1 : 0 | |
| }) | |
| } | |
| function tickTranslate(d){ | |
| return "translate(" + xScale(d) + ", 15)" | |
| } | |
| function axisTranslate(data){ | |
| return "translate(" + xScale(data[0]) + ",0)" | |
| } | |
| </script> | |
| </body> |
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