+ if (matrix instanceof MappableContactMatrixI)
+ {
+ // find the end of this run of set bits
+ int nextp = grp.nextClearBit(p) - 1;
+ int[] pos = ((MappableContactMatrixI) matrix)
+ .getMappedPositionsFor(rseq, p, nextp);
+ p = nextp;
+
+ if (pos != null)
+ {
+ for (int pos_p = pos[0]; pos_p <= pos[1]; pos_p++)
+ {
+ int col = rseq.findIndex(pos_p) - 1;
+ if (col >= 0 && (!av.hasHiddenColumns()
+ || hc.isVisible(col)))
+ {
+ cs.addElement(col);
+ }
+ }
+ }
+ }
+ else
+ {
+ int offp = (rseq != null)
+ ? rseq.findIndex(rseq.getStart() - 1 + p)
+ : p;
+
+ if (!av.hasHiddenColumns() || hc.isVisible(offp))
+ {
+ cs.addElement(offp);
+ }
+ }