Topic: Autodesk
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3D Tutorials AutoCAD 2007
AutoCAD workspaces are sets of menus, toolbars and dockable windows
(such as the Properties palette, DesignCenter, and the Tool palettes
window) that are grouped and organized so that you can work in a
custom, task-oriented drawing environment. ...
Perspective view displays objects in perspective so that all parallel
lines converge at one point. Objects appear to recede into the
distance, and parts of the objects appear larger and closer to you.
The shapes are some what distorted when the object is very close.
This view correlates more closely to what your eye sees.
Parallel view displays objects so that two parallel lines in a drawing
never con verge at a single point. The shapes in your drawing always
remain the same and do not appear distorted when they are closer.
Once a camera is created, it becomes a named view in the drawing and
can be viewed using the Named View Manager. You can also view the
camera using the view option when creating the camera.
A wireframe model is a skeletal description of a 3D object. There are no
surfaces in a wireframe model; it consists only of points, lines, and curves
that describe the edges of the object. With AutoCAD you can create
wireframe models by positioning 2D objects anywhere in 3D space.
AutoCAD also provides some 3D wireframe objects, such as 3D polylines
(that can only have a CONTINUOUS linetype) and splines. Because each
object that makes up a wireframe model must be independently drawn
and positioned, this type of modeling can be the most time-consuming.
...
Source: www.andrew.cmu.edu
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