# Database command
This command is used to define spatial dimension of model and number of degrees-of-freedom at nodes. Once issued additional commands are added to interpreter.
```tcl model BasicBuilder -ndm $ndm <-ndf $ndf> ```
|
spatial dimension of problem (1,2, or 3) |
|
number of degrees of freedom at node (optional) |
default value depends on value of ndm: |
|
ndm=1 -> ndf=1 |
|
ndm=2 -> ndf=3 |
|
ndm=3 -> ndf=6 |