tailieunhanh - Learning AutoCAD 2010, Volume 1 phần 3

Kết quả là, các bản vẽ phóng đại và lấp đầy không gian vẽ với khu vực được xác định bởi các cửa sổ phóng to. ZOOM, Z; E sau đó nhấn ENTER Sử dụng Phóng to trước tùy chọn Zoom trước để trở lại giao diện trước đó. ZOOM, Z P sau đó nhấn ENTER | Undo and Redo Commands Use the Undo command to step back through every action you made including pan and zoom. Use the Redo command to step forward through those actions again. These commands are conveniently located on the Quick Access toolbar. You can Undo at any point in the drawing session even within some of the draw and modify commands. However you can only Redo immediately after an Undo Command. You may also type the Undo command at the Command line. Enter U and press ENTER. If you continue to press ENTER the Undo command will be repeated. If you enter the entire word UNDO at the Command line and press ENTER you will see a list of Undo options at the Command line prompt. If you are working in the AutoCAD Classic workspace the Undo and Redo buttons include down arrows that reveal lists which you can choose to undo or redo up to a selected item or step. Command Access Undo Command Line U UNDO Menu Bar Edit Undo Quick Access Toolbar Undo Lesson Creating Basic Objects 79 Command Access Redo Command Line REDO Menu Bar Edit Redo Quick Access Toolbar Redo Command Options The following options are available only when you type the entire word UNDO at the Command Line. Right-click to access the shortcut menu or type the capitalized letter of the option. Option Description Auto Groups all actions of a single command making them reversible with a single U command. Control Limits or turns off Undo. Begin End Groups a sequence of actions into a set. After you use the Begin option all subsequent actions become part of this set until you use the End option. Mark Places a mark in the undo information. If you use the Back option all sequences are undone to the mark. Back Undoes all work to the first mark that is encountered. If there are no marks placed in the undo information the following prompt appears This will undo everything. OK Y If you continue all steps in the drawing are undone to the beginning of the drawing session. The Mredo command is similar to the expanded .