Arc Length 弧长
Arc length dimensions measure the distance along an arc of polyline arc segment 弧长标注用于测量圆弧或多段线圆弧上的距离。
Annotate tab > Dimensions panel > Arc Length
注释选项卡 > 标注面板 > 弧长
Select an arc
选择圆弧
Pick a point for the dimension location 指定尺寸线的位置
Selection 选择方式
There are different selection methods for different situation 不同 的 状况 使用 不同 的 选择方式 Window Selection 窗口选择 Selects all objects completely inside a selection box - rectangle defined by two points 仅选择矩形区域 完全包围 的对象 - 指定对角点以定义 矩形区域 Specifying the corners from left to right creates a window selection 从 左到右 拖动光标以创建窗口选择 Objects completely inside the selection box are selected 选择被 完全包围 在选择区域的 对象 Crossing Selection 窗交选择 Selects objects within and crossing an area defined by two points 选择矩形 窗口包围 的对象或与该 窗口相交 的对象 Specifying the corner from right to left creates a crossing selection A dashed box fill with green indicate that is crossing selection 从 右到左 拖动光标以创建窗交选择 浅青底色的 虚线框 代表 窗交选择 Objects within and crossing the selection box are selected 被 包围与相交 的对象将 被选择 Window Polygon 圈围 Selects objects completely inside a polygon defined by points 指定 不规则形状 区域的点，选择 完全包围 的对象 After "Select objects" ...
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