diff --git a/src/axis-manip.h b/src/axis-manip.h
index 8574bf3ff522846523dec4c3c3464c3f7f7b3b58..027d17ea56af1e0ef449da18bc6181e30bcb95b6 100644 (file)
--- a/src/axis-manip.h
+++ b/src/axis-manip.h
namespace Box3D {
+const double epsilon = 1e-6;
+
// The X-/Y-/Z-axis corresponds to the first/second/third digit
// in binary representation, respectively.
enum Axis {