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Learning AutoCAD 2010, Volume 1 phần 7

Lặp lại các lệnh sao chép và cố gắng lựa chọn đối tượng trước lựa chọn: s Bắt đầu lệnh Copy. Tại dấu nhắc đối tượng Chọn, nhập P và nhấn ENTER. s Thông báo lựa chọn trước đó bạn đã thực hiện được chọn một lần nữa. s Nhấn ESC để thoát khỏi lệnh Copy. | Option Description 1 LMfcd ÌTMỆHieB Lre w Zwcw DASHED CwhK MDOfN t wen_ c C M tort. HUP Linetype A blank drawing will contain the Continuous linetype. Select the Load button to load other linetypes. 1 Intaxra OMftft 1 O 1 1 MIWI 1 ijliwi a 15 01 PM ÙM QM QM H ứự-B Iwu hn W J 1 M 1 . o 1 1 1 Lineweight Various lineweights will not be displayed in the drawing window unless the Show Lineweight option is selected in the status bar. Note that the default lineweight is 0.01 inches or 0.25 mm. New Layer Properties When you create a new layer the properties of the currently selected layer are duplicated for the new layer. If your new layer is going to have properties such as color or linetype in common with another layer select the similar layer before you click New. Layer Status The visibility and availability of objects on specific layers are determined by the layer s status. The following table describes the potential status of a layer. These icons appear in the Layer Properties Manager and the Layer list. Click the icon to change the status of the layer. Icon Status V OR 9 On Objects on the layer are visible. Off Objects on the layer are not visible but are still considered when the drawing is regenerated. Lesson Using Layers 263 Icon Status OR Thawed Objects on the layer are visible. Frozen Objects on the layer are not visible and are not considered when the drawing is regenerated. L OR n 13 New VP Freeze Freezes layer in newly created viewports. VP Freeze Layout only The layer is not visible and will not print in the selected or current viewport if frozen. Ê OR of Unlocked You can select and edit objects on the layer. Locked You cannot select or edit objects on the layer. Layer Control List The Layer Control list is located on the Layers panel. Select the down arrow to reveal the list of Layers in the drawing. The Layer Control serves a dual purpose. 264 Chapter 4 Drawing Organization and Inquiry Commands 1. In normal operations the current layer is displayed. .