2D Drawing Methods

For 2D drawing, there are 3 methods commonly used, namely:

1. Method with the principle of the 2D Cartesian Think of it as a reference point located at coordinates 40.200, and the destination point at coordinates 400.60. Then to type the commands in the command promtnya like this:



• Command: Line (enter)
• Specify First Point: 400.60 (enter)
• Specify next point or (Undo): 4000.60 (enter)

2. Method with the principle of 2D Polar Think of it as a reference point coordinates located at any point by placing the cursor anywhere, and then click. for example:

• Command: Line (enter)
• Specify fist point: 40.200
• Specify next point or (Undo): @ 200 <-50 (enter)

Where @ to indicate the number 200 which is the distance of movement in front of him. <-50 To express numbers in front of him is a large angle of the axis 0. While the minus sign (-) that precedes the number 50 indicates that the rotation angle clockwise.

3. Relative to the principle of the method of 2D Think of it as a reference point is opposite the point coordinates, while the movement of the destination point, the X axis direction as far as Δx and Δy as far as the Y-axis direction. let Δx = Δy = 200 and 150, then

• Command: line (enter)
• Specify fist point: 40.200 (enter)
• Specify next point or (Undo): @ 200, -150 (enter)



source from autocad book