Files
MujicaUI/docs/components/158-compare-symbol.md
T

45 lines
1.5 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
# 158 CompareSymbol
## 用途
叠加对比品种;百分比归一;序列颜色与移除。
## 最小示例
```go
at := time.Date(2026, 10, 5, 9, 0, 0, 0, time.UTC)
candles := []mujica.Candle{
{Time: at, Open: 100, High: 103, Low: 99, Close: 102, Volume: 1200},
{Time: at.Add(time.Hour), Open: 102, High: 104, Low: 100, Close: 101, Volume: 1600},
{Time: at.Add(2 * time.Hour), Open: 101, High: 105, Low: 100, Close: 104, Volume: 900},
}
var window mujica.MarketView
symbols := []mujica.CompareSymbol{{Name: "ETH", Closes: []float64{20, 21, 23}}}
view := func(c *ui.Context) {
mujica.Use(c, mujica.Settings{})
mujica.CompareLegend(c, &symbols)
mujica.CandlestickChart(c, candles, &window, mujica.CandlestickOptions{Frame: mujica.ChartFrame{Label: "BTC", Height: 200}, Compare: &symbols})
}
ui.Render(view, 640, 400, 1)
```
## 参数
Name 为稳定品种名称;Closes 与主图逐根对齐,正数或 NaN;CompareLegend 提供形状图例和移除。
## 状态
图表通过 Frame 显示默认、加载、空数据、错误和重试;祖先 Disabled 阻止输入;浅深主题沿用窗口设置。
## 事件
ChartResult.Point 提供读数索引;Changed 表示读数变化;Retried 表示重试。
## 键盘操作
Tab 聚焦图表;方向键移动数据读数并朗读;Home/End 到首尾;Escape 清除读数。行情主图通过 +/- 缩放、Shift+左右方向键平移。
## 限制
数据由调用方提供;更新数据时替换切片,缓存按切片身份失效。行情读取、交易及持久化由调用方负责。