glu/sgi: Initialize members of class Slicer.

diff --git a/src/glu/sgi/libnurbs/internals/slicer.cc b/src/glu/sgi/libnurbs/internals/slicer.cc
index 27d2a65..1b18d73 100644 (file)
--- a/src/glu/sgi/libnurbs/internals/slicer.cc
+++ b/src/glu/sgi/libnurbs/internals/slicer.cc
@@ -1181,6 +1181,10 @@ void Slicer::slice(Arc_ptr loop)
 Slicer::Slicer( Backend &b ) 
        : CoveAndTiler( b ), Mesher( b ), backend( b )
 {
+    oneOverDu = 0;
+    du = 0;
+    dv = 0;
+    isolines = 0;
     ulinear = 0;
     vlinear = 0;
 }