0Autocad 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
