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Range Slider D3 V4
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<html> | |
<head> | |
<style> | |
.text-container { | |
max-width: 32%; | |
} | |
.button-apply { | |
text-align: center; | |
} | |
.text-div { | |
padding: 5px; | |
display: flex; | |
justify-content: space-between; | |
} | |
.text-span { | |
margin-left: 10px; | |
} | |
</style> | |
<title> </title> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
</head> | |
<body> | |
<div class="range-slider"> | |
<svg id="svg"> | |
<g class="axisContainer"> | |
<g class="range-slider-axis" id="axesContainer" /> | |
<g id="labelRef"> | |
<text | |
fillColor="#808080" | |
class="arrow-upper-label" | |
x="0" | |
y="-10" | |
text="" | |
style="text-anchor: middle;" | |
/> | |
</g> | |
<g class="range-slider-arrow" id="arrowContainer"> | |
<g id="arrowRef" /> | |
</g> | |
<g class="range-slider-brush" id="brushContainer" /> | |
</g> | |
</svg> | |
<div class="text-container"> | |
<div class="text-div"> | |
Step Size :<input | |
class="text-span" | |
type="text" | |
value="1" | |
id="stepSize" | |
/> | |
</div> | |
<div class="text-div"> | |
Slider Size :<input | |
class="text-span" | |
type="text" | |
value="3" | |
id="sliderSize" | |
/> | |
</div> | |
<div class="text-div"> | |
Initial Index :<input | |
class="text-span" | |
type="text" | |
value="0" | |
id="initialIndex" | |
/> | |
</div> | |
<div class="button-apply"> | |
<input type="button" value="Apply" onclick="applyChanges()" /> | |
</div> | |
</div> | |
<script src="./slider.js"></script> | |
<a | |
href="https://stackoverflow.com/users/7430694/chandrakant-thakkar" | |
style="position: absolute;top: 87%;left: 77%;" | |
target="_blank" | |
> | |
<img | |
src="https://stackoverflow.com/users/flair/7430694.png" | |
width="208" | |
height="58" | |
alt="profile for Chandrakant Thakkar at Stack Overflow, Q&A for professional and enthusiast programmers" | |
title="profile for Chandrakant Thakkar at Stack Overflow, Q&A for professional and enthusiast programmers" | |
/> | |
</a> | |
</div> | |
</body> | |
</html> |
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MIT License | |
Copyright (c) [2020] [Chandrakant Thakkar] | |
Permission is hereby granted, free of charge, to any person obtaining a copy | |
of this software and associated documentation files (the "Software"), to deal | |
in the Software without restriction, including without limitation the rights | |
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
copies of the Software, and to permit persons to whom the Software is | |
furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in all | |
copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
SOFTWARE. |
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const getDataValue = data => { | |
if (data != null && typeof data == "object") { | |
return data.data; | |
} else { | |
return data; | |
} | |
}; | |
const getTranslation = transform => { | |
// Create a dummy g for calculation purposes only. This will never | |
// be appended to the DOM and will be discarded once this function | |
// returns. | |
var g = document.createElementNS("http://www.w3.org/2000/svg", "g"); | |
// Set the transform attribute to the provided string value. | |
g.setAttributeNS(null, "transform", transform); | |
// consolidate the SVGTransformList containing all transformations | |
// to a single SVGTransform of type SVG_TRANSFORM_MATRIX and get | |
// its SVGMatrix. | |
var matrix = g.transform.baseVal.consolidate().matrix; | |
// As per definition values e and f are the ones for the translation. | |
return [matrix.e, matrix.f]; | |
}; | |
function inverse() { | |
var rangeDiffOriginal = xScale.range()[1] - xScale.range()[0]; | |
var index = 0; | |
if (rangeDiffOriginal >= 0) { | |
index = Math.floor( | |
(arguments[0] - xScale.paddingOuter() - xScale.range()[0]) / | |
xScale.bandwidth() | |
); | |
} else { | |
index = Math.floor( | |
(xScale.range()[0] - (arguments[0] + xScale.paddingOuter())) / | |
xScale.bandwidth() | |
); | |
} | |
if (index < 0 || index >= xScale.domain().length) { | |
return ""; | |
} else { | |
return xScale.domain()[index]; | |
} | |
} | |
function onBrushEnd(data) { | |
if (!event || !event.x) return; | |
else { | |
const x = d3 | |
.select("#brushContainer") | |
.select(".selection") | |
.node() | |
.getAttribute("x"); | |
let currentXPosition = parseFloat(x); | |
const indexOfEndValue = rangeValues.indexOf(inverse(currentXPosition)); | |
const nextIndexOfPoint = | |
indexOfEndValue == 0 | |
? indexOfEndValue | |
: Math.floor(indexOfEndValue / stepSize) == 0 | |
? 0 | |
: Math.floor(indexOfEndValue / stepSize) * stepSize; | |
const x1 = xScale(getDataValue(rangeValues[nextIndexOfPoint])); | |
let x2 = xScale(getDataValue(rangeValues[nextIndexOfPoint + sliderSize])); | |
if (nextIndexOfPoint + sliderSize > rangeValues.length - 1) { | |
x2 = xScale( | |
getDataValue( | |
rangeValues[ | |
nextIndexOfPoint + sliderSize > rangeValues.length - 1 | |
? rangeValues.length - 1 | |
: nextIndexOfPoint + sliderSize | |
] | |
) | |
); | |
x2 = x2 + xScale.bandwidth(); | |
} | |
d3.select(this) | |
.transition() | |
.call(brush.move, [x1, x2]); | |
const x1Value = inverse(x1); | |
const x2Value = inverse(x2 - 1); | |
d3.select("#labelRef") | |
.select("text") | |
.text(x1Value == x2Value ? x1Value : x1Value + "-" + x2Value); | |
console.log("start Point:", x1Value + "\tEnd Point:", x2Value); | |
} | |
} | |
function onBrushMove(data) { | |
data = data == null ? {} : data; | |
const x = d3 | |
.select("#brushContainer") | |
.select(".selection") | |
.node() | |
.getAttribute("x"); | |
data.x = x; | |
d3.select("#arrowContainer").attr("transform", `translate(${data.x},0)`); | |
d3.select("#labelRef").attr( | |
"transform", | |
`translate(${parseFloat(data.x) + | |
(arrowCoOrdinates.x2 - arrowCoOrdinates.x1) / 2},0)` | |
); | |
const currentXPosition = parseFloat(data.x); | |
const indexOfEndValue = rangeValues.indexOf(inverse(currentXPosition)); | |
const nextIndexOfPoint = | |
indexOfEndValue == 0 | |
? indexOfEndValue | |
: Math.floor(indexOfEndValue / stepSize) == 0 | |
? 0 | |
: Math.floor(indexOfEndValue / stepSize) * stepSize; | |
const x1 = xScale(getDataValue(rangeValues[nextIndexOfPoint])); | |
let x2 = xScale(getDataValue(rangeValues[nextIndexOfPoint + sliderSize])); | |
if (nextIndexOfPoint + sliderSize > rangeValues.length - 1) { | |
x2 = xScale( | |
getDataValue( | |
rangeValues[ | |
nextIndexOfPoint + sliderSize > rangeValues.length - 1 | |
? rangeValues.length - 1 | |
: nextIndexOfPoint + sliderSize | |
] | |
) | |
); | |
x2 = x2 + xScale.bandwidth(); | |
} | |
const x1Value = inverse(x1); | |
const x2Value = inverse(x2 - 1); | |
d3.select("#labelRef") | |
.select("text") | |
.text(x1Value == x2Value ? x1Value : x1Value + "-" + x2Value); | |
} | |
const rangeValues = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], | |
width = 800, | |
height = 100, | |
arrowFillColor = "orange", | |
arrowHeight = 10, | |
arrowWidth = 9, | |
margin = { left: 50, right: 50, top: 0, bottom: 0 }, | |
arrowLabelFormatter = null; | |
const xScale = d3 | |
.scaleBand() | |
.domain(rangeValues) | |
.range([0, width - (margin.left + margin.right)]); | |
d3.select("#svg") | |
.attr("width", width) | |
.attr("height", height); | |
d3.select(".axisContainer").attr( | |
"transform", | |
`translate(${margin.left},${height / 2})` | |
); | |
let index = parseInt(d3.select("#initialIndex").node().value), | |
stepSize = parseInt(d3.select("#stepSize").node().value), | |
sliderSize = parseInt(d3.select("#sliderSize").node().value); | |
let arrowCoOrdinates = { | |
x1: xScale(rangeValues[0]), | |
y1: 0, | |
x2: xScale(getDataValue(rangeValues[0 + sliderSize])), | |
y2: 0 | |
}; | |
const brush = d3 | |
.brushX() | |
.extent([ | |
[0, -(arrowHeight / 2)], | |
[width - (margin.left + margin.right), arrowHeight] | |
]) | |
.on("end", onBrushEnd) | |
.on("brush", onBrushMove); | |
function drawRangeSlider() { | |
(index = parseInt(d3.select("#initialIndex").node().value)), | |
(stepSize = parseInt(d3.select("#stepSize").node().value)), | |
(sliderSize = parseInt(d3.select("#sliderSize").node().value)); | |
arrowCoOrdinates = { | |
x1: xScale(rangeValues[0]), | |
y1: 0, | |
x2: xScale(getDataValue(rangeValues[0 + sliderSize])), | |
y2: 0 | |
}; | |
//CBT:Ticks STart | |
d3.select("#axesContainer").html(""); | |
let fontHeight; | |
rangeValues.forEach((data, index) => { | |
let values = data; | |
if (data != null && typeof data == "object") { | |
if (data.displayName) { | |
values = data.displayName; | |
} else if ( | |
data.formatter != null && | |
typeof data.formatter == "function" | |
) { | |
values = data.formatter(data.data); | |
} else { | |
values = data.data; | |
} | |
} | |
const ticksG = d3 | |
.select("#axesContainer") | |
.append("g") | |
.attr("class", "ticks") | |
.attr("transform", `translate(${xScale(getDataValue(data))},0)`); | |
let wrappedTexts = []; | |
if (values.toString().split("%^^%").length > 1) { | |
const textData = values.split("%^^%"); | |
const textG = ticksG.append("text").style("text-anchor", "middle"); | |
wrappedTexts = textData.map(textD => { | |
const tspan = textG | |
.append("tspan") | |
.classed("ticks-text", true) | |
.style("font-size", "var(--small-text-size)") | |
.attr("x", xScale.bandwidth() / 2) | |
.style("fill", "#808080") | |
.text(textD); | |
return tspan; | |
}); | |
fontHeight = wrappedTexts[0].node().getBBox().height; | |
} else { | |
const text = ticksG | |
.append("text") | |
.classed("ticks-text", true) | |
.style("text-anchor", "middle") | |
.style("font-size", "var(--small-text-size)") | |
.attr("x", xScale.bandwidth() / 2) | |
.style("fill", "#808080") | |
.text(values); | |
fontHeight = d3 | |
.select("#axesContainer") | |
.select(".ticks text.ticks-text") | |
.node() | |
.getBBox().height; | |
} | |
if (wrappedTexts.length > 0) { | |
let yPosition = 0; | |
wrappedTexts.forEach(textPoint => { | |
textPoint.attr("y", yPosition); | |
yPosition = yPosition + fontHeight; | |
}); | |
} | |
//CBT:tick line start | |
ticksG | |
.append("line") | |
.attr("x1", 0) | |
.attr("y1", -fontHeight) | |
.attr("x2", 0) | |
.attr("y2", -fontHeight + 4) | |
.style("stroke", "#C4C4C4"); | |
if (index == rangeValues.length - 1) { | |
ticksG | |
.append("line") | |
.attr("x1", xScale.bandwidth() - 1) | |
.attr("y1", -fontHeight) | |
.attr("x2", xScale.bandwidth() - 1) | |
.attr("y2", -fontHeight + 4) | |
.style("stroke", "#C4C4C4"); | |
} | |
//CBT:tick line end | |
}); | |
//CBT:put axis down as font size | |
d3.select("#axesContainer").attr("transform", `translate(0,${fontHeight})`); | |
//CBT:add ticks line | |
d3.select("#axesContainer") | |
.append("line") | |
.attr("x1", xScale(getDataValue(rangeValues[0]))) | |
.attr("y1", -fontHeight) | |
.attr( | |
"x2", | |
xScale(getDataValue(rangeValues[rangeValues.length - 1])) + | |
xScale.bandwidth() | |
) | |
.attr("y2", -fontHeight) | |
.style("stroke", "#C4C4C4"); | |
//CBT:Hide Overlapping Ticks text | |
var selectedTextWidth = ""; | |
let previousElement = null; | |
d3.select("#axesContainer") | |
.selectAll(".ticks") | |
.each(function(text, i) { | |
var that = this; | |
let textWidth = d3 | |
.select(that) | |
.select(".ticks-text") | |
.node() | |
.getBBox().width; | |
d3.select(that) | |
.select(".ticks-text") | |
.style("display", "block"); | |
var position = getTranslation(that.getAttribute("transform")); | |
if ( | |
i == 0 || | |
d3 | |
.select(that) | |
.select("text tspan") | |
.empty() == false | |
) { | |
selectedTextWidth = position[0] + textWidth; | |
if ( | |
previousElement != null && | |
d3 | |
.select(previousElement) | |
.select("text tspan") | |
.empty() == true | |
) { | |
//CBT:hide previous ticks text if it doesn't contain tspan and it's text overlapped current text | |
const positionPre = Utils.getTranslation( | |
previousElement.getAttribute("transform") | |
); | |
const textWidthPre = d3 | |
.select(previousElement) | |
.select(".ticks-text") | |
.node() | |
.getBBox().width; | |
if (positionPre[0] + textWidthPre + 5 > position[0]) { | |
d3.select(previousElement) | |
.select(".ticks-text") | |
.style("display", "none"); | |
} | |
} | |
previousElement = that; | |
} else { | |
var currentTextStart = position[0]; | |
if ( | |
currentTextStart <= selectedTextWidth + 10 || | |
currentTextStart > width | |
) { | |
d3.select(that) | |
.select(".ticks-text") | |
.style("display", "none"); | |
} else { | |
selectedTextWidth = position[0] + textWidth; | |
previousElement = that; | |
} | |
} | |
}); | |
//CBT:Ticks End | |
//CBT:arrow start | |
d3.select("#arrowRef").html(""); | |
const x11 = arrowCoOrdinates.x1 + arrowWidth; | |
const y11 = arrowCoOrdinates.y1 - arrowHeight / 2; | |
const x12 = x11; | |
const y12 = y11 + arrowHeight; | |
const x21 = arrowCoOrdinates.x2 - arrowWidth; | |
const y21 = arrowCoOrdinates.y2 - arrowHeight / 2; | |
const x22 = x21; | |
const y22 = y21 + arrowHeight; | |
const lineX1 = arrowCoOrdinates.x1 + arrowWidth; | |
const lineX2 = arrowCoOrdinates.x2 - arrowWidth; | |
d3.select("#arrowRef") | |
.attr("class", "range-arrow-slider ") | |
.attr("x", arrowCoOrdinates.x1) | |
.append("path") | |
.attr( | |
"d", | |
`M${arrowCoOrdinates.x1} ${arrowCoOrdinates.y1} L${x11} ${y11} L${x12} ${y12} L${arrowCoOrdinates.x1} ${arrowCoOrdinates.y1} Z` | |
) | |
.style("fill", arrowFillColor); | |
d3.select("#arrowRef") | |
.append("path") | |
.attr( | |
"d", | |
`M${arrowCoOrdinates.x2} ${arrowCoOrdinates.y2} L${x21} ${y21} L${x22} ${y22} L${arrowCoOrdinates.x2} ${arrowCoOrdinates.y2} Z` | |
) | |
.style("fill", arrowFillColor); | |
d3.select("#arrowRef") | |
.append("line") | |
.attr("x1", lineX1) | |
.attr("y1", arrowCoOrdinates.y1) | |
.attr("x2", lineX2) | |
.attr("y2", arrowCoOrdinates.y1) | |
.style("stroke-width", 1) | |
.style("stroke", arrowFillColor); | |
const arrowRect = d3 | |
.select("#arrowRef") | |
.append("rect") | |
.attr("x", arrowCoOrdinates.x1) | |
.attr("y", y11) | |
.attr("width", arrowCoOrdinates.x2 - arrowCoOrdinates.x1) | |
.attr("height", arrowHeight) | |
.style("fill", "transparent"); | |
//CBT:Arrow End | |
//CBT:Brush STart | |
const scaleBandWidth = xScale.bandwidth() / 2; | |
d3.select("#brushContainer").html(""); | |
const brushG = d3.select("#brushContainer"); | |
const brushSelection = brushG | |
.insert("g") | |
.attr("class", "brush") | |
.attr("id", d => { | |
return `brush-1`; | |
}); | |
brush(brushSelection); | |
const x1 = xScale(getDataValue(rangeValues[index])); | |
let x2 = xScale(getDataValue(rangeValues[index + sliderSize])); | |
//CBT:this is for default index is greater than data value's length | |
if (index + sliderSize > rangeValues.length - 1) { | |
x2 = width - (margin.left + margin.right); | |
} | |
brush.move(brushSelection, [x1, x2]); | |
d3.select("#brushContainer") | |
.select(".overlay") | |
.attr("pointer-events", "none"); | |
d3.select("#brushContainer") | |
.select(".selection") | |
.style("fill", "transparent") | |
.style("stroke", "transparent"); | |
d3.select("#brushContainer") | |
.selectAll(".handle") | |
.style("pointer-events", "none"); | |
//CBT:Brush ENd | |
} | |
drawRangeSlider(); | |
function applyChanges() { | |
drawRangeSlider(); | |
} |
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