New question #181411 on Yade:
https://answers.launchpad.net/yade/+question/181411
I'm trying to model a cylinder lying on a sand sample. The sample has periodic
boundaries only on the planes perpendicular to the cylinder axis.
I've created a bigger periodic cell (with a very small thickness), and then, to
contain the sand, 3 walls (bottom, right, and left) using the facet command.
Each wall contains several facets, to overcome the "Body larger than half of
the size" issues with the periodic boundaries.
My problem is now with the cylinder (generated as chainedCylinder). It's long
as the thickness of the periodic cell, and it has the diameter larger than half
of the size of the periodic cell.
I can divide the length of one cylinder in shorter cylinders, but I wouldn't
want to divide the circumference in smaller arcs or segments to overcome the
"Body larger than half of the size" issues.
Can I just comment those lines in InsertionSortCollider.cpp (see below) who
give that error? The cylinder will only move horizontally and vertically,
without any rotations (I'll prevent them).
So I guess if I'm using a whole single cylinder and commenting those lines, the
cylinder will be reproduced in the opposite side, but exactly where the other
side of the cylinder is.
These are the lines that I've commented. I'm wondering if commenting them will
cause any problems.
// if(unlikely((pmn1!=pmx1) || (pmn2!=pmx2))){
// Real span=(pmn1!=pmx1?mx1-mn1:mx2-mn2); if(span<0) span=dim-span;
// LOG_FATAL("Body #"<<(pmn1!=pmx1?id1:id2)<<" spans over half of
the cell size "<<dim<<" (axis="<<axis<<", min="<<(pmn1!=pmx1?mn1:mn2)<<",
max="<<(pmn1!=pmx1?mx1:mx2)<<", span="<<span<<")");
// throw runtime_error(__FILE__ ": Body larger than half of the cell
size encountered.");
// }
Thanks for any suggestions
Giulia
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