92 lines
1.5 KiB
Markdown
92 lines
1.5 KiB
Markdown
# 轨迹可视化方案
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> 文档版本：v1.0
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> 最后更新：2026-04-02 08:28:05
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本文档定义用户轨迹的显示模式、默认策略与配置结构。
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目标：
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- 支持 `none / full / tail` 三种轨迹模式
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- `tail` 模式有更强的实时感和游戏感
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- 兼顾低端机性能
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## 模式定义
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### `none`
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- 不显示轨迹
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- 只显示当前 GPS 点
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### `full`
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- 显示从开始到当前的完整轨迹
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### `tail`
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- 只显示最近一小段拖尾轨迹
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- 头部更亮、更粗
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- 尾部逐步变淡、变细
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- 用户停止移动后，轨迹会逐步缩短到消失
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## 推荐默认值
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### 顺序赛
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- `mode = full`
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- `style = classic`
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### 积分赛
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- `mode = tail`
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- `style = neon`
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## 推荐配置
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```json
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"game": {
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"presentation": {
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"track": {
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"mode": "tail",
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"style": "neon",
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"tailMeters": 60,
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"tailMaxSeconds": 30,
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"fadeOutWhenStill": true,
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"stillSpeedKmh": 0.6,
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"fadeOutDurationMs": 3000,
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"colorHex": "#176d5d",
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"headColorHex": "#54f3d8",
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"widthPx": 5,
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"headWidthPx": 10,
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"glowStrength": 0.42
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}
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}
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}
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```
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## 当前实现约定
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当前第一版实现支持：
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- `mode`
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- `style`
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- `tailMeters`
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- `tailMaxSeconds`
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- `fadeOutWhenStill`
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- `stillSpeedKmh`
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- `fadeOutDurationMs`
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- `colorHex`
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- `headColorHex`
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- `widthPx`
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- `headWidthPx`
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- `glowStrength`
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## 后续扩展
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- 轨迹颜色按心率区间变化
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- 轨迹颜色按速度变化
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- `standard / lite` 下自动降级 glow
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