Autodesk 235B1-05A761-1301 User Guide - Page 43

■ Moving Plumbing Lines and Fittings on page 497 ■ Rotating Isometric Symbols on page 542 ■ Moving Schematic Lines on page 538 ■ "Move Objects" in the AutoCAD Help OFFSET The OFFSET command copies a selected object, giving the copy a shape that reflects the original. Because OFFSET offsets polylines, in AutoCAD MEP you can use it to offset schematic lines. You can also use this command to offset individual segments of duct, pipe, cable tray, or conduit, and individual plumbing lines. However, because the command does not support the selection of multiple objects, you cannot use it to offset a complete run. For more information, see "Offset an Object" in the AutoCAD Help. PURGE The PURGE command removes unused, named AutoCAD objects, such as blocks, layers, and styles, from a drawing. Because PURGE purges only AutoCAD objects, in AutoCAD MEP you should purge unused building systems objects first, and then use the Style Manager to purge unused system definitions. For more information, see the following topics: ■ Purging AutoCAD MEP Objects on page 590 ■ Purging Systems on page 101 ■ "Erase Objects" in the AutoCAD Help ROTATE and ROTATE3D The ROTATE command rotates an object around a base point. The ROTATE3D command rotates an object around a 3-dimensional axis. In AutoCAD MEP, you can use ROTATE3D to rotate fittings around a specified axis and connection point. However, a quicker and easier alternative is Rotate grips. In plan or isometric views, you can use Rotate grips to rotate both fittings and inline parts. The grips adjust connected objects and maintain their connectivity whenever possible. For more information, see the following topics: ■ Rotating Duct Components on page 228 ■ Rotating Pipe Components on page 321 ■ Rotating Cable Tray or Conduit Fittings on page 450 ■ Rotating Plumbing Fittings on page 498 ■ "Rotate Objects" in the AutoCAD Help OFFSET | 25