fix: keep particle density stable across zoom
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docs/60_测试/STEP-055_Android真实WeatherV2风场综合可视化_人工验收指令_v7.md
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docs/60_测试/STEP-055_Android真实WeatherV2风场综合可视化_人工验收指令_v7.md
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# STEP-055 Android 真实 WeatherV2 风场综合可视化人工验收指令 v7
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环境:Windows 11;设备 `192.168.1.146`。Android 构建、安装与设备操作由用户手工执行;Codex 未执行这些步骤。
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```powershell
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cd platform\android
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$env:RENDERER='opengl'; $env:BUILDTYPE='Debug'; make apackage --console=plain
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adb -s 192.168.1.146 install -r <APK路径>
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adb -s 192.168.1.146 logcat -c
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adb -s 192.168.1.146 logcat | Select-String 'Particle(Density|Motion|Lifecycle|Trail|Timeline|GPU|StateTarget)'
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```
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1. `REAL WEATHER` 自动 fit(z≈2–3):粒子持续可见、运动且自然分布;不得回到固定 world-length 粗短棍,也不应呈规则均匀点阵。
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2. z≈5:停止相机操作至少 150ms。确认 `ParticleTrail: event=CAMERA_STABLE_RESUME` 后出现一条 `ParticleDensity mode=VIEWPORT_RESPAWN cameraStable=true margin=0.15`;粒子密度应比 v8 明显改善。
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3. z≈8–9:不提高 `particleCount` 仍有足够可见粒子;不得有整批 reseed、大面积闪烁或高频越界 respawn。`ParticleDensity` 的 `respawnBounds` 必须位于 `fieldBounds` 内。
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4. 连续 pinch zoom/pan/rotate:交互期间 State 继续,`ParticleTrail` 只一次 `CAMERA_INVALIDATE`,不反复重建 texture;稳定后 resume 并启用 viewport respawn。不得出现 `SIMULATION_RESET`、Field resubmit 或 `PARTICLE_COUNT_CHANGE`。
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5. Timeline Pause:forecast cursor/mix 冻结,但 Particle simulation 和 wall-time lifecycle 继续;生命周期仍为 12 real seconds、hash jitter 9–15 seconds。
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6. `TIME → PLAY` 至 T3:继续确认 `OLD_T1 → NEW_T0` reuse、only NEW_T1 upload、`simulationRebuild=false`、`trailCleared=false`。正常 forecast boundary 不得因 density 逻辑清 Trail。
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若 `ParticleDensity` 显示 `FIELD_FALLBACK`,保留完整日志和相机状态;这是空/无效/过小交集的 fail-safe,不得通过提高 particleCount 或改回固定 streak 绕过。
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所有 ADB 命令必须显式使用 `adb -s 192.168.1.146 ...`。
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