168 lines
4.2 KiB
HTML
168 lines
4.2 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<style>
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body {
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font: 10px sans-serif;
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}
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text {
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fill: #000;
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}
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button {
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position: absolute;
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right: 20px;
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top: 440px;
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display: none;
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}
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path.candle {
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stroke: #000000;
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}
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path.candle.body {
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stroke-width: 0;
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}
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path.candle.up {
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fill: #dc3526;
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stroke: #dc3526;
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}
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path.candle.down {
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fill: #007d30;
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stroke: #007d30;
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}
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</style>
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<body>
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<h3 id="chart-title"></h3>
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<div>
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<input type="radio" name="range" value="5d">5日<br>
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<input type="radio" name="range" value="30d">30日<br>
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<input type="radio" name="range" value="ytd">今年迄今<br>
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</div>
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<script src="http://d3js.org/d3.v4.min.js"></script>
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<script src="http://techanjs.org/techan.min.js"></script>
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<script>
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var margin = {top: 20, right: 20, bottom: 30, left: 50},
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width = 960 - margin.left - margin.right,
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height = 500 - margin.top - margin.bottom;
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var parseDate = d3.timeParse("%d-%b-%y");
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var x = techan.scale.financetime()
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.range([0, width]);
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var y = d3.scaleLinear()
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.range([height, 0]);
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var candlestick = techan.plot.candlestick()
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.xScale(x)
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.yScale(y);
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var xAxis = d3.axisBottom()
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.scale(x)
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.tickFormat(d3.timeFormat('%y-%m-%d'));
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var yAxis = d3.axisLeft()
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.scale(y);
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var svg = d3.select("body").append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
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var data_by_date = [];
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d3.json(`https://gist.githubusercontent.com/Yoxem/e3e1986777af209a00f8a318056431ed/raw/b646e322a87e2bc2c061ecf32902fc543bc41aed/0050.json`, function(d) {
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console.log(d);
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var data_by_date = [];
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var parseDate = d3.timeParse("%Y-%m-%d");
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for (var i=0;i<d["close"].length;i++){
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data_by_date.push({
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date: parseDate(d["date"][i]),
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open: +d["open"][i],
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high: +d["high"][i],
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low: +d["low"][i],
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close: +d["close"][i],
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volume: +d["volume"][i],
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});};
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console.log('dataGet', data_by_date);
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var accessor = candlestick.accessor();
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data_by_date = data_by_date.sort(function(a, b) { return d3.ascending(accessor.d(a), accessor.d(b)); });
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console.log("===" + JSON.stringify(data_by_date));
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svg.append("g")
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.attr("class", "candlestick");
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svg.append("g")
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.attr("class", "x axis")
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.attr("transform", "translate(0," + height + ")")
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.append("text")
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.text("日期")
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.attr("transform", "translate(" + width + ", 0)");
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svg.append("g")
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.attr("class", "y axis")
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.append("text")
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.attr("transform", "rotate(-90)")
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.attr("y", 6)
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.attr("dy", ".71em")
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.style("text-anchor", "end")
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.text("股價（NT$)");
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// Data to display initially
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d3.select("#chart-title").text("今年迄今");
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draw(data_by_date);
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// Only want this button to be active if the data has loaded
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// d3.select("input").on("click", function() { draw(data_by_date); }).style("display", "inline");
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d3.selectAll('input[name="range"]').on("change", function(){
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if (this.value == "ytd"){
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draw(data_by_date);
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d3.select("#chart-title").text("今年迄今");
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}
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else if(this.value == "30d"){
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draw(data_by_date.slice(data_by_date.length-30, data_by_date.length-1));
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d3.select("#chart-title").text("30日");
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}
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else{
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draw(data_by_date.slice(data_by_date.length-5, data_by_date.length-1));
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d3.select("#chart-title").text("5日");
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};
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});
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} ); // 串接網址
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function draw(data) {
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x.domain(data.map(candlestick.accessor().d));
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y.domain(techan.scale.plot.ohlc(data, candlestick.accessor()).domain());
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svg.selectAll("g.candlestick").datum(data).call(candlestick);
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svg.selectAll("g.x.axis").call(xAxis);
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svg.selectAll("g.y.axis").call(yAxis);
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}
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</script>
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