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autocad 2008 autocad lt 2008 no experience required - phần 4

Đôi khi nó hiệu quả hơn để lựa chọn các đối tượng nhiều hơn bạn muốn và sau đó bỏ chọn những bạn không muốn. Bạn sẽ thấy làm thế nào điều này được thực hiện khi bạn chọn các đồ đạc nhà bếp và phòng tắm: 1. Chọn một điểm trong khu vực nhà bếp ngay dưới tủ lạnh để bắt đầu một cửa sổ qua. 2. | Setting Up Layers 1 9 5 Selecting the Kitchen and Bathroom Fixtures Sometimes it s more efficient to select more objects than you want and then deselect those you don t want. You ll see how this is done when you select the kitchen and bathroom fixtures 1. Pick a point in the kitchen area just below the refrigerator to start a crossing window. 2. Move the cursor to the left and up until the upper-left corner of the crossing window is to the left of the left edge of the counter and inside the back wall as shown in the left of Figure 6.19. When you have it correct click that point. The entire kitchen counter area and the back wall line are selected. FIGURE 6.19 A crossing window to select the kitchen objects top another crossing window to select the bathroom objects bottom and the completed selection set after removing the door swing and back wall line next page Continues 1 9 6 Chapter 6 Using Layers to Organize Your Drawing 3. Move over to the bathroom and pick a point in the middle of the bathroom sink being careful not to touch any lines with the crosshair cursor. 4. Move the crosshair cursor down and to the left until the lower-left corner of the crossing window is in the middle of the toilet tank see the middle of Figure 6.19 . When you have it positioned this way click that point. All the bathroom fixtures and the door swing are selected. 5. Hold down the Shift key and then pick the selected door swing in the bathroom and the back wall line in the kitchen. Be careful to not pick a grip. As you pick them their lines become solid again and their grips disappear letting you know they have been deselected or removed from the selection set see the right of Figure 6.19 . Be sure to pick the back wall line in the kitchen where it doesn t coincide with the stove. 6. Release the Shift key. Open the Layer Control drop-down list and select the Fixtures layer. The fixtures are now on the Fixtures layer and are magenta. 7. Press the Esc key to deselect the objects. The last