Understanding relative coordinate input
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Author | Murat Saraldı |
| Profession | Mechanical Technician | |
| AutoCAD Instructor | ||
| Location | Izmir, TURKEY | |
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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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June 23rd, 2008 04:40
Hi, I’ve noticed in CAD if you want to select a block and move it to 0,0 for some reason CAD thinks you are wanting to move it @0,0 to say @10,0 it puts the @ sign in for you. All i really want to do is move the block to 0,0 any idea?
July 29th, 2008 18:50
please send to me by internet a cad course good for teaching
basic and advance
thank you
guillermo
September 18th, 2008 16:17
i must say some very useful information that u have placed on veiw in the website ,i stared training in an engineering company for a month now and am just brshing up on sum skills and easy to learn espeacially the small tips .