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feat: 优化行情展示代码

This commit is contained in:
2025-12-02 11:36:41 +08:00
parent 5f42d36436
commit 7eec44f21c

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@@ -34,74 +34,163 @@
'2025-01-08': [112, 118, 110, 121],
'2025-01-09': [118, 121, 117, 123],
'2025-01-10': [121, 119, 118, 122],
};
// Derive arrays for the chart from the KV map
const dates = Object.keys(data).sort();
// For custom rendering, augment with category index: [idx, open, close, low, high]
const ohlcData = dates.map((d, i) => [i, ...data[d]]);
// Styling and helpers
const UP_COLOR = '#000000'; // up: black
const DOWN_COLOR = '#9e9e9e'; // down: gray
function renderOHLCMinimal(params, api) {
var idx = api.value(0);
var open = api.value(1);
var close = api.value(2);
var low = api.value(3);
var high = api.value(4);
var up = close >= open;
var x = api.coord([idx, 0])[0];
var highPoint = api.coord([idx, high]);
var lowPoint = api.coord([idx, low]);
var openPoint = api.coord([idx, open]);
var closePoint = api.coord([idx, close]);
var band = api.size([1, 0])[0];
// Keep dash length unchanged from the previous baseline
var tick = Math.max(4, Math.min(10, band * 0.4));
var color = up ? UP_COLOR : DOWN_COLOR;
return {
type: 'group',
children: [
{
type: 'line',
shape: { x1: x, y1: highPoint[1], x2: x, y2: lowPoint[1] },
style: { stroke: color, lineWidth: 1, opacity: 0.9 },
},
{
type: 'line',
shape: { x1: x - tick, y1: openPoint[1], x2: x, y2: openPoint[1] },
style: { stroke: color, lineWidth: 1.2, opacity: 0.95 },
},
{
type: 'line',
shape: { x1: x, y1: closePoint[1], x2: x + tick, y2: closePoint[1] },
style: { stroke: color, lineWidth: 1.6, opacity: 0.95 },
},
]
};
}
function formatTooltip(params) {
var p = Array.isArray(params) ? params[0] : params;
var v = p.data; // [idx, open, close, low, high]
var d = dates[v[0]];
var o = v[1], c = v[2], l = v[3], h = v[4];
var chg = (c - o);
var chgPct = o ? (chg / o * 100) : 0;
var sign = chg >= 0 ? '+' : '';
return [
d,
'O: ' + o,
'C: ' + c,
'H: ' + h,
'L: ' + l,
'Chg: ' + sign + chg.toFixed(2) + ' (' + sign + chgPct.toFixed(2) + '%)'
].join('<br/>');
// 全局配置(颜色、尺寸、间距等),集中管理,便于统一调整
const CONFIG = {
colors: {up: '#000000FF', down: '#00000045'},
grid: {left: '2%', right: '2%', top: 40, bottom: 110},
zoom: {bottom: 16, height: 50},
linewidth: {stem: 1.5, openTick: 1.2, closeTick: 1.6, closeLine: 1.5},
tick: {min: 4, max: 10, scale: 0.4},
}
// 通用 tooltip 格式化(按索引回读原始 O/H/L/C
function makeTooltipFormatter(dataMap, dates) {
return function (params) {
let p = Array.isArray(params) ? params[0] : params
let idx = p.dataIndex
let d = dates[idx]
let ohlc = dataMap[d] || []
let o = ohlc[0], c = ohlc[1], l = ohlc[2], h = ohlc[3]
let chg = (c - o)
let chgPct = o ? (chg / o * 100) : 0
let sign = chg >= 0 ? '+' : ''
return [
d,
'O: ' + o,
'C: ' + c,
'H: ' + h,
'L: ' + l,
'Chg: ' + sign + chg.toFixed(2) + ' (' + sign + chgPct.toFixed(2) + '%)',
].join('<br/>')
}
}
// 通用基础配置构建legend/tooltip/grid/xAxis/yAxis/dataZoom
function buildBaseOption(dates, series, formatter) {
return {
animation: false,
legend: {show: false},
tooltip: {trigger: 'axis', axisPointer: {type: 'cross'}, formatter},
grid: CONFIG.grid,
xAxis: {type: 'category', data: dates, boundaryGap: true, axisLine: {onZero: false}},
yAxis: {scale: true},
dataZoom: [
{type: 'inside', xAxisIndex: 0, start: 0, end: 100},
{
show: true,
type: 'slider',
xAxisIndex: 0,
bottom: CONFIG.zoom.bottom,
height: CONFIG.zoom.height,
start: 0,
end: 100,
},
],
series,
}
}
// Range Band + Close Line高低区间带 + 收盘线):趋势与波动范围直观
function buildRangeCloseOption(dataMap) {
const dates = Object.keys(dataMap).sort()
const lowArr = dates.map(d => dataMap[d][2])
const highArr = dates.map(d => dataMap[d][3])
const closeArr = dates.map(d => dataMap[d][1])
const rangeArr = highArr.map((h, i) => h - lowArr[i])
const series = [
{
name: 'Low',
type: 'line',
data: lowArr,
stack: 'range',
symbol: 'none',
lineStyle: {width: 0},
emphasis: {disabled: true},
},
{
name: 'Range',
type: 'line',
data: rangeArr,
stack: 'range',
symbol: 'none',
lineStyle: {width: 0},
areaStyle: {color: CONFIG.colors.down, opacity: 0.6},
z: 2,
},
{
name: 'Close',
type: 'line',
data: closeArr,
symbol: 'none',
lineStyle: {color: CONFIG.colors.up, width: CONFIG.linewidth.closeLine},
z: 3,
},
]
return buildBaseOption(dates, series, makeTooltipFormatter(dataMap, dates))
}
// Minimal OHLC竖线 + 左/右短横信息等价于K线但形态简洁
function buildOHLCMinimalOption(dataMap) {
const dates = Object.keys(dataMap).sort()
const ohlcData = dates.map((d, i) => [i, ...dataMap[d]])
// 自定义渲染:竖线=高低区间;左短横=开盘;右短横=收盘;颜色=涨跌
function renderOHLCMinimal(params, api) {
let idx = api.value(0)
let open = api.value(1)
let close = api.value(2)
let low = api.value(3)
let high = api.value(4)
let up = close >= open
let x = api.coord([idx, 0])[0]
let highPoint = api.coord([idx, high])
let lowPoint = api.coord([idx, low])
let openPoint = api.coord([idx, open])
let closePoint = api.coord([idx, close])
let band = api.size([1, 0])[0]
let tick = Math.max(CONFIG.tick.min, Math.min(CONFIG.tick.max, band * CONFIG.tick.scale))
let color = up ? CONFIG.colors.up : CONFIG.colors.down
return {
type: 'group',
children: [
{
type: 'line',
shape: {x1: x, y1: highPoint[1], x2: x, y2: lowPoint[1]},
style: {stroke: color, lineWidth: CONFIG.linewidth.stem, opacity: 0.9},
},
{
type: 'line',
shape: {x1: x - tick, y1: openPoint[1], x2: x, y2: openPoint[1]},
style: {stroke: color, lineWidth: CONFIG.linewidth.openTick, opacity: 0.95},
},
{
type: 'line',
shape: {x1: x, y1: closePoint[1], x2: x + tick, y2: closePoint[1]},
style: {stroke: color, lineWidth: CONFIG.linewidth.closeTick, opacity: 0.95},
},
],
}
}
const series = [
{
name: 'ohlc',
type: 'custom',
renderItem: renderOHLCMinimal,
encode: {x: 0, y: [1, 2, 3, 4]},
data: ohlcData,
z: 10,
},
]
return buildBaseOption(dates, series, makeTooltipFormatter(dataMap, dates))
}
(function () {
@@ -112,49 +201,22 @@
body: {
type: 'tabs',
tabsMode: 'vertical',
// amis expects `tabs` to be an array. Using an object causes `.map` errors at runtime.
tabs: [
{
title: '测试',
body: {
type: 'chart',
height: 800,
// ECharts candlestick example
config: {
animation: false,
// Minimal style: hide legend for a cleaner look
legend: { show: false },
tooltip: { trigger: 'axis', axisPointer: { type: 'cross' }, formatter: formatTooltip },
grid: { left: '10%', right: '8%', top: 50, bottom: 80 },
xAxis: {
type: 'category',
// Use computed arrays directly to avoid template interpolation issues
data: dates,
boundaryGap: true,
axisLine: { onZero: false },
title: 'Charts',
// 在一个 Tab 中展示两张图,便于同屏对比
body: [
{
type: 'chart',
height: 500,
config: buildRangeCloseOption(data),
},
yAxis: {
scale: true,
{
type: 'chart',
height: 500,
config: buildOHLCMinimalOption(data),
},
dataZoom: [
// Inside zoom for wheel/gesture; default selects all
{ type: 'inside', xAxisIndex: 0, start: 0, end: 100 },
// Slider placed under the x-axis; default selects all
{ show: true, type: 'slider', xAxisIndex: 0, bottom: 16, height: 26, start: 0, end: 100 },
],
series: [
{
name: 'ohlc',
type: 'custom',
// Minimal OHLC: neutral stem (high-low) + short dashes at open/close
renderItem: renderOHLCMinimal,
encode: { x: 0, y: [1, 2, 3, 4] },
data: ohlcData,
z: 10,
},
],
},
},
],
},
],
},