Wednesday

Understanding Relative Coordinate Input

4 Comments Jun-10-2009 | Posted by Murat Saraldı | Printable Version | Level | All AutoCAD Versions

Hi,

Today, I want to mention Relative Coordinate System.

Figure.1 We’ll practise this shape to understand relative coordinate input ‘@’ character is used for relative coordinate input. Putting it at the beginning of an entry, the place you are on is considered as the origin and the desired coordinate relative to this origin is entered. Briefly, ‘@’ character means ‘with respect to’.

Run LINE command, pick any point on the screen and follow the steps below.

Firstly, draw a 100-unit line.

@100,0 ‘Enter’

Figure.2

Then, draw a 100-unit line through Y axis.

@0,100

Figure.3

The 80-unit line is in negative X direction.

@-80,0

Figure.4

The following movement is in both negative directions of X and Y axes.

@-20,-20

Figure.5

The last line is in negative Y direction.

@0,-80

Figure.6

If you did not follow up till now, you could enter the values listed below to draw the figure.

Type ‘L’ and press ‘ENTER’.

Pick a point.

@100,0
@0,100
@-80,0
@-20,-20
@0,-80

Regards.

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