What is AutoCAD? - Templates, Visual style, UCS and WCS in AutoCAD

-

What is AutoCAD?

CAD stands for computer-aided design and drafting. AutoCAD software is used to draw technical drawings using drafting tools.

Templates:

There are many templates in AutoCAD but we will discuss two of them.
  1. acad.dwt 
  2. acadiso.dwt
acad.dwt is a template setup for imperial (units= inches), whereas acadiso.dwt is setup for metric (units= mm).

Visual Style:

There are ten basic visual styles in AutoCAD.
  1. 2D wireframe
  2. Conceptual 
  3. Hidden
  4. Realistic
  5. Shaded
  6. Shaded with edges
  7. Shades of grey
  8. Sketchy
  9. Wireframe
  10. X-ray
We can manage visual style using Visual Style Manager.

View:

There are ten basic view controls in AutoCAD.
  1. Top
  2. Bottom 
  3. Left
  4. Right
  5. Front
  6. Back
  7. SW isometric
  8. SE isometric
  9. NE isometric
  10. NW isometric
We can also manage view controls using View Manager.

UCS:

UCS stands for User Coordinate System. 

WCS:

WCS stands for World Coordinate System.
  • The AutoCAD world is 3 dimensional, However, if we want to draw 2D objects, such as plan or section, we will use only 2 dimensional ( x and y ). 
  • WCS is an imaginary plane that is parallel to the ground. It is the default coordinate system.
  • Modifications made to the WCS result in UCS. It is the plane that you work on. It enables the user to draw 3-dimensional objects.
  • To create new UCS, type ucs in the command window than say New and specify 3 points on your new UCS plane.

Comments

Post a Comment

Popular posts from this blog

what is the difference between line and polyline in AutoCAD?

-
Image
Difference between Line and Polyline (Pline): The Line and Polyline are two commands with different properties in AutoCAD. In Line Command every time we click, the part between two points.  The Line Command allows you to create a single straight line or a chain of straight lines.  When we select a polyline it selected as a whole object. On the other side when we select Line it is selected as a single line segment.  We can edit Polyline with " PEDIT Command ". On the other side, there is no specific command to edit line. Pline Command can draw curve segments as well as line straight ones but Line Command can draw only line segments. A polyline can have width but a line has no width. After drawing a polyline, you can use the PEdit Command to reshape the polyline into a smooth, flowing curve based on the vertex points you selected but you cannot do this with the line. We can select one line among the chain of lines to edit the drawing. However, in the...
Read more

How to Draw Arcs in AutoCAD - Arc Command in AutoCAD

-
Image
ARC Command: ARC: Arc is part of a curve, especially a part of the circumference of a circle. Command: The shortcut key of ARC command is "A". You can also access ARC command by clicking this icon There are different options/ways to draw ARC in AutoCAD. The default one is 3-point. Other options/ways written as below: 3-Point Start, Center, End Start, Center, Angle Start, Center, Length Start, End, Angle Start, End, Direction Start, End, Radius Center, Start, End Center, Start, Length Continue 3-Point: In 3-Point, you need to specify three points with the help of a mouse or keyboard. These three points are on the circumference. Start, Center, End: First, specify the starting point of the arc then center and then the endpoint of the arc. Start, Center, Angle: The first point you specify on the screen is the starting point. Then you need to specify the center point as above and then give the angle to give direction. Star...
Read more