Name: LXTRUN
Author: lxtrun

LXTRUN is a customizable running data field for the standard Forerunner 255. The watch interface is primarily Simplified Chinese. Forerunner 255 Music, 255S and other models are not supported.

Installation: in the native Run activity, set a data page to a single field and choose LXTRUN.

Features:
- Multiple metrics on one page: heart rate, cadence, current and average pace, distance, activity timer, time of day, GPS status and battery.
- Configurable fields include projected finish times for 5K, 10K, half marathon and marathon.
- Independent heart-rate and cadence smoothing. Defaults: a rolling 5-second average updated every second. Sampling and update intervals: 1, 2, 3 or 5 seconds. Window sizes: 3, 5, 7, 10, 15, 20 or 30 seconds.
- Changes of 20% or more relative to accepted readings require confirmation to reduce isolated jumps; sustained changes can be followed progressively.
- Adaptive number sizes and native on-watch settings. No phone recording or extra sensor is required.

Smoothing adds a short display delay and cannot identify every persistent sensor error. It stabilizes the displayed values; it does not improve measurement accuracy or recalibrate GPS. Garmin's native heart rate, cadence and GPS records remain unchanged. Additional FIT fields hold smoothed values for comparison; their presentation in Garmin Connect still requires store-installation verification.

Screenshots use demonstration values.

Based on GRun Chinese, independently modified and maintained as LXTRUN. Thanks to gcormier9 and Likenttt. Upstream source: https://github.com/Likenttt/GRun-Chinese

MIT License:
Copyright 2022 gcormier9,Likenttt

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

LXTRUN

LXTRUN 是一个跑步数据字段，在手表原生跑步活动内显示多个指标。使用时，请将一个数据页面设为“1 个数据字段”，再选择 LXTRUN。

- 可显示心率、当前步频、当前配速、平均配速、距离、活动计时、墙钟时间、GPS 状态与电量。
- 各栏位可选择 5K、10K、半马、全马预计完赛时间等指标。
- 心率与步频默认使用最近 5 秒的滚动平均，每秒更新；可独立选择 3、5、7、10、15、20、30 秒窗口，分别开关过滤；取样和平滑更新间隔可分别设为 1、2、3、5 秒。
- 对相对于已接纳读数达到 20% 的突变进行确认，减少孤立跳值；持续变化可逐步跟随。
- 数字根据栏位尺寸自动选字号，支持手表上的栏位与布局设置。
- 运行时不需要手机同步记录，也不需要额外传感器。

仅支持普通版 Forerunner 255，不支持 255 Music、255S 或其他型号。当前版本界面以简体中文为主。

平滑会带来短暂显示延迟，也不能识别所有持续的传感器错误。该功能改善数值显示的稳定性，不代表提高了心率测量准确度。LXTRUN 不重写佳明原生心率、步频和 GPS 轨迹，附加 FIT 字段记录平滑结果供跑后对照；Garmin Connect 对这些字段的呈现仍需商店安装后验证。

本应用基于 GRun 中文版开源项目修改，保留其多栏位布局与主要统计方式。感谢原作者 gcormier9、Likenttt。上游以 MIT 许可证发布，完整署名与许可证随软件保留。LXTRUN 是独立修改版本，与上游原应用分开维护。

源码来源：https://github.com/Likenttt/GRun-Chinese

截图使用演示数值。

MIT License:
Copyright 2022 gcormier9,Likenttt

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.