ansys.mapdl.core.Mapdl.lsbl#

Mapdl.lsbl(nl1='', nl2='', sepo='', keep1='', keep2='', **kwargs)#

Subtracts lines from lines.

Mechanical APDL Command: LSBL

Parameters:
nl1str

Line (or lines, if picking is used) to be subtracted from. If ALL, use all selected lines. Lines specified in this argument are not available for use in the NL2 argument. If P, graphical picking is enabled (valid only in the GUI) and all remaining fields are ignored. A component name may also be substituted for NL1.

nl2str

Line (or lines, if picking is used) to subtract. If ALL, use all selected lines (except those included in the NL1 argument). A component name may also be substituted for NL2.

sepostr

Behavior if the intersection of the NL1 lines and the NL2 lines 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.

keep1str

Specifies whether NL1 lines are to be deleted:

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

  • DELETE - Delete NL1 lines after lsbl operation (override boptn command settings).

  • KEEP - Keep NL1 lines after lsbl operation (override boptn command settings).

keep2str

Specifies whether NL2 lines are to be deleted:

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

  • DELETE - Delete NL2 lines after lsbl operation (override boptn command settings).

  • KEEP - Keep NL2 lines after lsbl operation (override boptn command settings).

Notes

Generates new lines by subtracting the regions common to both NL1 and NL2 lines (the intersection) from the NL1 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.