Viewing a 3D Drawing AutoCad Help

Your first 3D view of a drawing is a Wireframe view. It appears as if it were an open model made of wire; none of the sides appear solid. This section describes how to manipulate the Wueframe view so you can see your drawing from any angle. This section will also describe how, once you have selected your view, you can view the 3D drawing as a solid object with the hidden lines removed. You will also learn methods for saving views for later recall.

Finding Isometric and Orthogonal Views

First, let’s start by looking at some of the viewing options available.You used one option already to get the current 3D view, That option, View > 3D Views > SW Isometric, brings up an Isometric view from a southwest direction, where north is the same direction as the y-axis, Figure 15,10 illustrates the three other Isometric View options: SE Isometric, NE Isometric, and NW Isometric. In Figure 15.10, the cameras represent the different viewpoint locations. You can get an idea of their location in reference to the grid and UCS icon shown in Figure 15.10.

FIGURE 15.10

FIGURE 15.10

Another set of options available on the View > 3D Views cascading menu are Top, Bottom, Left, Right, Front, and Back. These are Orthogonal views. that show the sides, top, and bottom of the model, as shown in Figure 15.11. In this figure, the cameras once again show the points.of view.

To give you a better idea of what an Orthogonal view looks like, Figure 15.12 shows the view that you see when you choose View >: 3D Views > Right It is a side view of the unit.

FIGURE 15.11

FIGURE 15.11

When you use any of the View options described here, AutoCAD attempts display the extents of the drawing. You can then use the Pan and Zoom tools to adjust your view.

If you find you use these Vrew options frequently, you may want to open the View toolbar.

This toolbar offers quick, single-click access to all the options discussed in this section. To open it, right-click any toolbar, and then click Viewpoint on the Toolbars dialog box.

Using a·Dialog Box to Select 3D Views

You now know that you can select from a variety of “canned” viewpoints to view your 3D model. You can also fine-tune your view by indicating an angle from the drawing’s x-axis and from the floor plane using the Viewpoint Presets dialog box. The following steps show you how it works.

  1. Click View > 3D Views > Viewpoint Presets, or type Vp. The Viewpoint Presets dialog box appears (see Figure 15.13). The square dial to the left lets you select a viewpoint location in degrees relative to the x-axis. The semicircle to the right lets you select an elevation for your view point.
  2. Click OK. Your view changes according to the new settings you just made.

Other settings in this dialog box let you determine whether the selected view angles are relative to the World Coordinate System or to the current User Coordinate System (UCS is discussed in Chapter 16). You can also go directly to a Plan view by clicking the Set to Plan View button.

There are a couple of features of the Viewpoint Presets dialog box that are not readily apparent. First of all, you can select the exact angle indicated by the label of either graphic by clicking anywhere inside the outlined regions around the pointer (see Figure 15.13). For example, in the graphic to the left, click anywhere in the region labeled 90 to set the pointer to 90 exactly.

You can set the pointers to smaller degree increments by clicking within the pointer area. For example, if you click in the area just below the 90 region in the left graphic, the pointer moves to that location. The angle will be slightly greater or less than 90 degree.

FIGURE 15.13

FIGURE 15.13

If you want to enter an exact value from the x-axis or x-y plane, you can do so by entering an angle value in the input boxes provided. You can obtain virtually any view you want using the options offered in the Viewpoint Presets dialog box

Posted on November 9, 2015 in Introducing 3D

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