> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/e3d-user-manual/introduction/toc161393725/toc161393728.md).

# Enter Nodal Coordinates

How to enter nodal coordinates using Cartesian or polar values, absolute or relative, in the command window.

Nodal coordinates can be specified by either Cartesian or Polar systems through the command window.

Cartesian coordinates can be specified by either absolute or relative X, Y and/or Z values, separated by comma(s). Z value may be omitted, in which case the program will assign Z = 0.

By default, the values entered are absolute coordinates, which are based on the origin (0, 0, 0) of the global coordinate system. Relative coordinates are based on the last nodal coordinates entered. To specify relative coordinates, precede the coordinate values with a @ character.

For example, the following will draw three nodes (1, 1, 0), (3, 4, 2) and (2, 8, 3)

Command: node

Specify nodal coordinates: 1,1

Specify nodal coordinates: @2,3,2

Specify nodal coordinates: @-1,4,1

Polar coordinates can be specified by either absolute or relative distance plus an angle, separated by an < character. The angle is degrees measured from the +X direction and is positive in counterclockwise direction around +Z axis.

By default, the value entered is absolute distance, which is based on the origin (0, 0, 0) of the global coordinate system. Relative distance is based on the last nodal coordinates entered. To specify relative distance, precede the distance values with an @ character.

For example, the following will draw three nodes (1, 1, 0), (4.33013, 2.5, 0) and (6.45145, 4.62132, 0)

Command: node

Specify nodal coordinates: 1,1

Specify nodal coordinates: 5<30

Specify nodal coordinates: @3<45


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