lsbv

Mapdl.lsbv(nl='', nv='', sepo='', keepl='', keepv='', **kwargs)

Subtracts volumes from lines.

APDL Command: LSBV

Parameters
nl

Line (or lines, if picking is used) to be subtracted from. If ALL, use all selected lines. If NL = P, graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI). A component name may also be substituted for NL.

nv

Volume (or volumes, if picking is used) to be subtracted. If ALL, use all selected volumes. A component name may also be substituted for NV.

sepo

Behavior if the intersection of the NL lines and the NV volumes is a keypoint or keypoints:

(blank) - The resulting lines will share keypoint(s) where they touch.

SEPO - The resulting lines will have separate, but coincident keypoint(s) where they

touch.

keepl

Specifies whether NL lines are to be deleted:

(blank) - Use the setting of KEEP on the BOPTN command.

DELETE - Delete NL lines after LSBV operation (override BOPTN command settings).

KEEP - Keep NL lines after LSBV operation (override BOPTN command settings).

keepv

Specifies whether NV volumes are to be deleted:

(blank) - Use the setting of KEEP on the BOPTN command.

DELETE - Delete NV volumes after LSBV operation (override BOPTN command settings).

KEEP - Keep NV volumes after LSBV operation (override BOPTN command settings).

Notes

Generates new lines by subtracting the regions common to both NL lines and NV volumes (the intersection) from the NL lines. The intersection can be a line(s) or point(s). If the intersection is a point and SEPO is blank, the NL1 line is divided at the point and the resulting lines will be connected, sharing a common keypoint where they touch. If SEPO is set to SEPO, NL1 is divided into two unconnected lines with separate keypoints where they touch. See the Modeling and Meshing Guide for an illustration. See the BOPTN command for an explanation of the options available to Boolean operations. Element attributes and solid model boundary conditions assigned to the original entities will not be transferred to the new entities generated. LSBL,ALL,ALL will have no effect since all the lines (in NL1) will be unavailable as NL2 lines.