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-rw-r--r--Master/texmf-dist/asymptote/solids.asy3
1 files changed, 2 insertions, 1 deletions
diff --git a/Master/texmf-dist/asymptote/solids.asy b/Master/texmf-dist/asymptote/solids.asy
index 09bccd32aa9..90f01dc935f 100644
--- a/Master/texmf-dist/asymptote/solids.asy
+++ b/Master/texmf-dist/asymptote/solids.asy
@@ -300,7 +300,8 @@ struct revolution {
path3 p1=subpath(p,0,t);
path3 p2=subpath(p,t,length(p));
if(length(p1) > 0 &&
- abs(midpoint(p1)-camera) <= abs(midpoint(p2)-camera)) {
+ (length(p2) == 0 ||
+ abs(midpoint(p1)-camera) <= abs(midpoint(p2)-camera))) {
s.longitudinal.front.push(p1);
s.longitudinal.back.push(p2);
} else {