autocad 2008 autocad lt 2008 no experience required - phần 10

2. Double-click trong khung nhìn lớn hơn, và sau đó nhấp vào nút Freeze lớp. 3. Nhấp vào một bong bóng lưới điện và một mạng lưới đường đóng băng các lớp của các thành phần trong khung nhìn. Nhấp patio, roofline của độ cao trái, polyline một khu vực, một trong những mô hình nở, và mỗi một trong số các thành phần của độ cao phía trước. 4. | Modeling in 3D 6 3 3 Building the Balcony You re nearly done building the cabin. The next step is to make the balcony using Booleans and the Slice tool. 1. Make a new layer called 3D-Balcony assign it color 24 make it current and then thaw the Balcony layer and freeze the other 3D layers. 2. Choose the Cylinder primitive tool on the 3D Make control panel to create a cylinder solid to represent the space enclosed by the balcony wall. Use the Center osnap to locate the center point of the arcs that represent the balcony wall. Select a radius of 4 -6 and a height of 5 -0 . 3. Move this cylinder up 10 . 4. Draw a second cylinder using the same center point with a radius of 5 and a height of 4 . Be sure to pick the center of the 2D balcony arcs not the center of the 3D cylinder. 5. Start the Subtract command and subtract the smaller cylinder from the larger cylinder to form a bowl shape see Figure . FIGURE The beginning of the balcony 6 3 4 Chapter 16 Creating 3D Geometry 6. Expand the 3D Make control panel on the Dashboard by clicking the double arrows that appear when you place your cursor over the darker gray area to the left of the tools. The panel expands downward and makes several new tools accessible. Click the Slice button then back in the drawing select the new balcony and press J. 7. At the first prompt enter yzJ. This defines the plane that you ll use to slice the balcony. 8. At the second prompt pick the bottom corner of the cabin wall where the bottom of the balcony meets the corner. Doing so positions the YZ cutting plane in line with the exterior wall surface against which the balcony wall butts. 9. At the third prompt click a blank spot below and to the right of the balcony. This tells AutoCAD the side of the cutting plane where the desired objects are located. The shape is cut in half the inside half is deleted and the balcony is complete see Figure . FIGURE The balcony after using the slice tool Putting a Roof on the Cabin You .