From 7f08ca01a276b3c1e7711c4c323be9183df05d84 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Wed, 15 Apr 2020 16:21:30 +0200
Subject: [PATCH] fat edges are now printable

---
 3d-models.cpp | 11 ++++++++++-
 graph.cpp     |  3 ++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/3d-models.cpp b/3d-models.cpp
index d57c5f3c..87a74758 100644
--- a/3d-models.cpp
+++ b/3d-models.cpp
@@ -1254,7 +1254,16 @@ hpcshape& geometry_information::generate_pipe(ld length, ld width) {
       }
     }
 
-  last->flags |= POLY_TRIANGLES;
+  for(int a=0; a<MAX_R; a++) {
+    hpcpush(at(MAX_X, a));
+    hpcpush(at(MAX_X, a+1));
+    hpcpush(xpush0(length));
+    hpcpush(at(MAX_X, a+1));
+    hpcpush(at(MAX_X, a));
+    hpcpush(C0);
+    }
+
+  last->flags |= POLY_TRIANGLES | POLY_PRINTABLE;
   add_texture(*last);
   finishshape();
   extra_vertices();
diff --git a/graph.cpp b/graph.cpp
index 1547a860..2c2af40a 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -3697,7 +3697,8 @@ EX void gridline(const transmatrix& V1, const hyperpoint h1, const transmatrix&
   if(WDIM == 3 && fat_edges) {
     transmatrix T = V1 * rgpushxto0(h1);
     transmatrix S = rspintox(inverse(T) * V2 * h2);
-    queuepoly(T * S, cgi.generate_pipe(d, vid.linewidth), col);
+    auto& p = queuepoly(T * S, cgi.generate_pipe(d, vid.linewidth), col);
+    p.intester = xpush0(d/2);
     return;
     }
   #endif