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Diffstat (limited to 'Build/source/utils/asymptote/drawsurface.cc')
-rw-r--r-- | Build/source/utils/asymptote/drawsurface.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/drawsurface.cc b/Build/source/utils/asymptote/drawsurface.cc index 5576023c9f1..98383fc83be 100644 --- a/Build/source/utils/asymptote/drawsurface.cc +++ b/Build/source/utils/asymptote/drawsurface.cc @@ -599,6 +599,13 @@ void drawSphere::P(Triple& t, double x, double y, double z) double temp=z; z=x; x=-temp; } + if(T == NULL) { + t[0]=x; + t[1]=y; + t[2]=z; + return; + } + double f=T[12]*x+T[13]*y+T[14]*z+T[15]; if(f == 0.0) run::dividebyzero(); f=1.0/f; |