X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=src%2Fbezier.cpp;h=daa07360079ea818ca7050dc144b0adbbf87eb65;hb=58a6719da2337b3e6e20b581885f170bbe5fc480;hp=99611dc5d5ba99722e1e1fc05ea652abea703320;hpb=0361b11485ec41d2c2ddeb279abf846f777f5363;p=ipdf%2Fcode.git

diff --git a/src/bezier.cpp b/src/bezier.cpp
index 99611dc..daa0736 100644
--- a/src/bezier.cpp
+++ b/src/bezier.cpp
@@ -4,6 +4,8 @@
 #include <cmath>
 #include <algorithm>
 
+
+
 using namespace std;
 
 namespace IPDF
@@ -54,9 +56,13 @@ static void CubicSolveSegment(vector<Real> & roots, const Real & a, const Real &
 	Real l = a*tl*tl*tl + b*tl*tl + c*tl + d;
 	Real u = a*tu*tu*tu + b*tu*tu + c*tu + d;
 	if ((l < 0 && u < 0) || (l > 0 && u > 0))
-		return;
+	{
+		//Debug("Discarding segment (no roots) l = %f (%f), u = %f (%f)", Double(tl), Double(l), Double(tu), Double(u));
+		//return;
+	}
 	
 	bool negative = (u < l); // lower point > 0, upper point < 0
+	//Debug("%ft^3 + %ft^2 + %ft + %f is negative (%f < %f) %d", Double(a),Double(b),Double(c),Double(d),Double(u),Double(l), negative);
 	while (tu - tl > delta)
 	{
 		Real t(tu+tl);
@@ -420,3 +426,4 @@ Rect Bezier::SolveBounds() const
 }
 
 } // end namespace
+