Three-dimensional graphics are often handy for presentations, and 3D AutoCAD images are frequently used for that purpose, as well as for producing.drafted 2D drawings. You may want to show off some of your 3D work directly from the computer screen. However, if your drawings are complicated, your audience may get impatient waiting for the hidden lines to be removed.…
In your work with 3D so far in this chapter, you have simply extruded existing forms, or you have set AutoCAD to draw extruded objects. But extruded forms have their limitations. Using just extruded forms, it’s hard to draw diagonal surfaces in the z-axis. AutoCAD provides the 3D Face object to give you more flexibility in drawing surfaces in…
You’ve seen how you can make an opaque vertical surface just by changing the thickness property of an object. To make a horizontal surface appear opaque, you must draw it with a wide polyline, a solid hatch, or a 3D Face. For example, consider a table: You might represent the tabletop with a rectangle and give it the…
As you work with your 3D model, you will want to get an idea of how it looks with hidden lines removed. Frequently, object intersections and shapes are not readily apparent until you can see what object Iines in front of others AutoCAD provides two helpful viewing commands for this situation. First, the Hide command allows you to…
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…
Viewing an object in three dimensions lets you have a sense of its true shape and form. It also helps you conceptualize the design, which results in better design decisions. Finally, using three-dimensional objects helps you communicate your ideas to those who may not be familiar with the plans, sections, and side views of your design. A further advantage…
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