# How to enter the coordinates in CAD and detailed examples

### How to enter the coordinates in CAD and detailed examples

The ways to enter coordinates xy in AutoCAD (the way to enter coordinates in cad, enter coordinates of points in cad):

Drawing commands remind us to enter coordinates of points into drawing. In 2-dimensions drawing (2D), you only enter abscissa (X) and ordinale (Y). In 3-dimensions drawing (3D), you have to add altitude (Z).

For example: When you use line command, the prompt lines will appears:

• Specify first point: Enter coordinates of the first point
• Specify next point or [Undo]: Enter coordinates of the end point

Using the left mouse button to choose (PICK): Combine with methods of catching point.
Absolute coordinates: enter absolute coordinates X, Y of the point following to origin of coordinates (0,0) as below:

• Command: Line↵
• Specify first point: -50,-50↵
• Specify next point or [Undo]: 30,-50↵

Polar coordinates: Enter polar coordinates of the point (D<α) following to distance D between the point with origin of coordinates (0,0) and oblique α in comparison with standard line.

Relative coordinates: Enter coordinates of the point following to the defined last point on drawing. At the prompt line, you enter @X,Y. Mark@ means ( Last Point) – the defined last point on drawing.

• Command: Line↵
• Specify first point: 30,-50↵
• Specify next point or [Undo]: @0,100↵

Relative polar coordinates: At the prompt line, you enter @D<α, in which:

• D: Distance between the point needs to define with the last point on drawing.
• α angle is the angle between standard line with straight line segment of 2 points.
• Standard line is the line starting from origin of relative coordinates, lies on positive direction of X axis.
• Positive angle is counter-clockwise one. Minus angle is clockwise one.
• For example: In the picture, we used defined point A and syntax @10<30