arb:: fixed get_corner_position to work with negative cid

2019-12-23 20:51:36 +01:00 · 2019-12-23 20:51:36 +01:00 · 97ea8f8c4b
parent 7a0e8ec022
commit 97ea8f8c4b
1 changed files with 1 additions and 1 deletions
--- a/geometry2.cpp
+++ b/geometry2.cpp
@ -426,7 +426,7 @@ EX hyperpoint get_corner_position(cell *c, int cid, ld cf IS(3)) {
  #endif
  if(arb::in()) {
    auto& sh = arb::current.shapes[arb::id_of(c->master)];
-    return normalize(C0 + (sh.vertices[cid % c->type] - C0) * 3 / cf);
+    return normalize(C0 + (sh.vertices[gmod(cid, c->type)] - C0) * 3 / cf);
    }
  if(PURE) {
    return ddspin(c,cid,M_PI/S7) * xpush0(cgi.hcrossf * 3 / cf);