ansys.mapdl.core.Mapdl.v

Mapdl.v(p1='', p2='', p3='', p4='', p5='', p6='', p7='', p8='', **kwargs)

Defines a volume through keypoints.

Mechanical APDL Command: V

Parameters:

p1str

Keypoint defining starting corner of volume. If P1 = P, graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI).

p2str

Keypoint defining second corner of volume.

p3str

Keypoint defining third corner of volume.

p4str

Keypoint defining fourth corner of volume.

p5str

Keypoint defining fifth corner of volume.

p6str

Keypoint defining sixth corner of volume.

p7str

Keypoint defining seventh corner of volume.

p8str

Keypoint defining eighth corner of volume.

Returns:

int

Volume number of the generated volume.

Notes

Notes

Defines a volume (and its corresponding lines and areas) through eight (or fewer) existing keypoints. Keypoints must be input in a continuous order. The order of the keypoints should be around the bottom and then the top. Missing lines are generated “straight” in the active coordinate system and assigned the lowest available numbers ( numstr ). Missing areas are generated and assigned the lowest available numbers.

Solid modeling in a toroidal coordinate system is not recommended.

Certain faces may be condensed to a line or point by repeating keypoints. For example, use v, P1, P2, P3, P3, P5, P6, P7, P7 for a triangular prism or v, P1, P2, P3, P3, P5, P5, P5, P5 for a tetrahedron.

Using keypoints to produce partial sections in csys = 2 can generate anomalies; check the resulting volumes carefully.

Examples

Create a simple cube volume.

>>> k0 = mapdl.k("", 0, 0, 0)
>>> k1 = mapdl.k("", 1, 0, 0)
>>> k2 = mapdl.k("", 1, 1, 0)
>>> k3 = mapdl.k("", 0, 1, 0)
>>> k4 = mapdl.k("", 0, 0, 1)
>>> k5 = mapdl.k("", 1, 0, 1)
>>> k6 = mapdl.k("", 1, 1, 1)
>>> k7 = mapdl.k("", 0, 1, 1)
>>> v0 = mapdl.v(k0, k1, k2, k3, k4, k5, k6, k7)
>>> v0
1

Create a triangular prism

>>> k0 = mapdl.k("", 0, 0, 0)
>>> k1 = mapdl.k("", 1, 0, 0)
>>> k2 = mapdl.k("", 1, 1, 0)
>>> k3 = mapdl.k("", 0, 1, 0)
>>> k4 = mapdl.k("", 0, 0, 1)
>>> k5 = mapdl.k("", 1, 0, 1)
>>> k6 = mapdl.k("", 1, 1, 1)
>>> k7 = mapdl.k("", 0, 1, 1)
>>> v1 = mapdl.v(k0, k1, k2, k2, k4, k5, k6, k6)
>>> v1
2

Create a tetrahedron

>>> k0 = mapdl.k("", 0, 0, 0)
>>> k1 = mapdl.k("", 1, 0, 0)
>>> k2 = mapdl.k("", 1, 1, 0)
>>> k3 = mapdl.k("", 0, 0, 1)
>>> v2 = mapdl.v(k0, k1, k2, k2, k3, k3, k3, k3)
>>> v2
3