# SOLID Command
[GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Commands](Help%20System/GSTARCAD/2021/Commands/(Commands).md) → [S](Help%20System/GSTARCAD/2021/Commands/S/(S).md)
The SOLID command is used to create solid filled by triangles and quadrangles.
## Command Access:
> **Command:** SOLID
## Command Prompts:
> Specify first point:
> Specify second point:
> Specify third point:
> Specify fourth point or \<exit\>:
> Specify a point on desired side or \[keep Both sides\] \<Both\>:
## Function Description:
The selected 2D solid must be orthogonal with the observation direction and the FILLMODE system variable must be specified to 1, otherwise the solid could not be hatched.
Relative Glossary:
**First point:**
Specify the first point in the 2D solid.
**Second point:**
Specify the first edge in the 2D solid.
**Third point:**
Set the corner point relative to the second point.
**Fourth point or \<exit\>:**
Set the fourth point relative to the first point. Press ENTER under the command prompt of "specify fourth point or \<exit\>", it will create a filled triangle.
 
Users could continue to specify "the third point" and "the fourth point" to create more triangles and quadrangles.
## Other versions with matching text
[GstarCAD 2016](../../../2016/Commands/S/SOLID%20Command.md) · [GstarCAD 2017](../../../2017/Commands/S/SOLID%20Command.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/Commands/S/SOLID%20Command.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/S/SOLID%20Command.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/Commands/S/SOLID%20Command.md)