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3-D CAD TERMINOLOGY
Terms in this set (23)
A concept of displaying real-world objects on flat surface showing only height and width. This system uses only the X and Y axes.
A way of displaying real-wold objects in a more natural way by adding depth to the height and width. This system uses the X Y and Z axes.
Commands that allow you to add, subtract or intersect solid objects in AutoCAD.
Generally a curved surface. Example: car fender, landscape contour.
The difference between an object being at zero on the z-axis and the height that it is above zero.
The extrude command raises the shape of a 2D outline into a 3D solid. For example, a circle would be extruded into a cylinder.
The simplest true 3-D surface.
A three or four sided polygon that represents a piece (or section) of a 3D surface.
Hidden line removal
A way of hiding lines that would not be visible if you were viewing the actual object you have drawn in AutoCAD (command: HIDE)
A simple way of achieving a "3-D" appearance using 2-D drawing methods.
Also known as the top view, a plan view looks directly down the WCS Z-axis to the Y-axis.
A basis solid building block. examples would be boxes, cones, cylinders.
A 2-D area consisting of lines, arcs, etc.
A complex way of adding photo-realistic qualities to a 3-D model you have created.
A quick way of adding color to a 3-D object you have drawn.
A 3-D model creating using solid "building blocks". this is the most accurate way of representing real-world objects in CAD.
A 3-D model defined by surfaces. the surface consists of polygons.
A property of lines and other objects that gives them a 3-D like appearance.
The user co-ordinate system. This is defined by the person drawing to have easier access to portions of a 3-D model.
A particular view of the objects you have created.
A window into your drawing showing a particular view. You can have several viewports on your screen. Different from the viewports used in plotting.
A 3-D shape that is defined by lines and curves. A skeletal representation. Hidden line removal is not possible with this model.
The third axis that defines the depth.
THIS SET IS OFTEN IN FOLDERS WITH...
Drafting 1 - Class Notes:
Basic AutoCad Terminology
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