01 计算阴影范围线
简介：讲解在CAD中计算屋顶遮挡物（如女儿墙、风机、铁塔）在水平面上的阴影范围线，支持自定义日期、时段、经纬度及遮挡物高度等参数。
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02 计算阴影范围线-彩钢瓦屋面的女儿墙上端对齐、气楼
简介：讲解在彩钢瓦屋面场景中，计算女儿墙（上端对齐）及气楼等屋面遮挡物的阴影范围线。
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03 module2array用法
简介：讲解在柔性支架或平单轴项目中，将以组件为最小单位绘制的布置图，通过module2array命令批量将成排相邻组件转换为方阵，便于反向导入。
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