A drawing might contain elements that were defined once but are no longer used. Common examples of this include:
定义但未插入任何地方的块。
Layers that do not contain any objects.
不再使用的命名组件。
这se unused (or unreferenced) definitions use disk space and can significantly increase the size of your drawing. The AutoCAD software provides you with Purge tools to remove these items. The various Purge tools are available in the Manage tab>Cleanup panel, as shown below.
清除工具
这(Purge) tool opens the Purge dialog box, where you can select the category of the item that you want to purge (such as Blocks, Layers, etc.). You can also expand the list for any category and select individual items to purge. The Preview area of the dialog box displays the image of the item to be purged.
选项：
如果是Confirm each item to be purged选择选项，提示您在清除每个项目之前对其进行验证。
要完全清除图纸中的所有未参考元素，请选择清除嵌套物品option. For example, this enables you to purge any unreferenced layers that are part of (or nested in) an unreferenced block definition.
这清除未命名的对象area provides you with the options of purging零长度几何形状and空文本对象separately.
Selecting the查找不可用的物品对话框中的选项卡显示了正在使用的项目列表，无法清除。选择一个项目以显示有关为什么无法清除的信息。还提供了详细信息，例如每一层的项目数及其对文件大小的影响。您也可以单击选择对象按钮可以放大到特定的不可用对象。
过度杀伤工具
AutoCAD 2022中可用的另一个清理工具是：
（过度杀伤
) tool. Use this tool to remove duplicate and overlapping geometric objects, such as lines, arcs, and polylines. Examples of the changes made by the Overkill command include:
–Deleting duplicate line or arc segments.
–Deleting arcs that overlap portions of circles.
- 与以相同角度绘制的部分重叠线。
- 填充零长度和重叠的多数。
I hope that you will find the above Purge tools handy for cleaning up your drawings. I have provided a fully detailed section along with a hands-on practice in the Working with Blocks chapter in the AUTOCAD 2022基本面学习指南。
Renu Muthoo，学习内容开发人员，上升
Renu has worked with Autodesk products for the past 20 years with a main focus on design visualization software. Renu holds a bachelor’s degree in Computer Engineering and started her career as an Instructional Designer/Author where she co-authored a number of Autodesk 3ds Max and AutoCAD books, some of which were translated into other languages for a wide audience reach. In her next role as a Technical Specialist at a 3D visualization company, Renu used 3ds Max in real-world scenarios on a daily basis. There, she developed customized 3D web planner solutions to create specialized 3D models with photorealistic texturing and lighting to produce high quality renderings.
提交以下：3D CAD World
