How to use coordinate system in autocad

Autocad provides 3 basic coordinate system

1. Absolute Coordinate System:- In this system point is defined with respect to origin.

2. Relative Coordinate System:- In this system point is defined with its previous point with symbol @ x,y values.

3. Polar Coordinate System:- In this system point is defined by using @ symbol distance and angle <

Let us learn how to use it in AutoCAD command prompt:

1. Absolute Coordinate System

Consider we required a rectangle of 12 unit X 9 unit

Let us take a line command (L)

Specify first point :0,0

Specify next point :12,0

Specify next point :12,9

Specify next point :0,9

Specify next point :C

2 Relative Coordinate System

Consider we required a rectangle of 4 unit X 6 unit

Let us take a line command (L)

Specify first point :2,2

Specify next point :@4,0

Specify next point :@0,6

Specify next point :@-4,0

Specify next point :C

3. Polar Coordinate System

Consider we required a rectangle of 4 unit X 6 unit

Let us take a line command (L)

Specify first point :7,2

Specify next point :@4<0

Specify next point :@6<90

Specify next point :@4<180

Specify next point :C