Hi All,
I want to tilt the geometry as initially shown on 1 in the attached file with first fix command.
fix d_feed all mesh/surface file meshes/drop_feed.stl type 1 move 0.0 0.0 0.0 rotate axis 0.0 0.0 -1.0 angle 0.0 curvature 1e-6
After doing the below command to rotate the geometry, it positions as 2 yet I just want it to tilt at its centroid in position 1.
fix d_feed all mesh/surface file meshes/drop_feed.stl type 1 move 0.0 0.0 0.0 rotate axis 0.0 0.0 -1.0 angle 45.0 curvature 1e-6
Kindly help on how I can do this.
| Attachment | Size |
|---|---|
 Move_Rotate_Style | 28.65 KB |
ckloss | Mon, 02/22/2016 - 11:35
Hi,
Hi,
"tilt" is nothing else than move+rotate. Any arbitrary position and orientation can be achieved by combining move+rotate
Best wishes
Christoph
Theo_Score | Mon, 02/22/2016 - 11:51
Thank you so much, it worked
Thank you so much, it worked well.
Best regards,
Theo
gukargl | Wed, 07/06/2016 - 11:52
Keep track of rotation axis
For combined linear and rotation of a mesh you should keep track of the rotation axis. I had a similar problem and below is part of the script I used to solve that problem.
# track position of rotation axis
variable startstep equal step #
variable xposition equal ${mshxpos}+${scm_vx}*(step-${startstep})*dt
variable zposition equal ${mshzpos}+${scm_vz}*(step-${startstep})*dt #
variable anglpos equal ${mshangle}+${rotSpeed_c}*${rot_dir}*(step-${startstep})*dt #
fix movecadlin all move/mesh mesh cad1 linear ${scm_vx} 0.0 ${scm_vz}
fix movecadang all move/mesh mesh cad1 rotate origin ${mshxpos} 0.0 ${mshzpos} axis 0.0 1.0 0.0 period ${rotPeriod} # rotate scoop