X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=ETL%2Ftrunk%2FETL%2F_angle.h;h=20f82617d5a980efe678896a3c7eef22098f1178;hb=18bbe511c4b334ebca61b4a22662750d07521f37;hp=cfa7dc27b772b8162a5cc85f70cffd75f109bd9d;hpb=cee5940bae97612105db8b7e1ffcf513f9d9150c;p=synfig.git

diff --git a/ETL/trunk/ETL/_angle.h b/ETL/trunk/ETL/_angle.h
index cfa7dc2..20f8261 100644
--- a/ETL/trunk/ETL/_angle.h
+++ b/ETL/trunk/ETL/_angle.h
@@ -1,7 +1,8 @@
+#include <stdio.h>
 /* ========================================================================
 ** Extended Template and Library
 ** Angle Abstraction Class Implementation
-** $Id: _angle.h,v 1.1.1.1 2005/01/04 01:31:46 darco Exp $
+** $Id$
 **
 ** Copyright (c) 2002 Robert B. Quattlebaum Jr.
 **
@@ -59,7 +60,7 @@ public:
 protected:
 	typedef value_type unit;
 
-	unit v;	//! Stored in rotations
+	unit v;	//! Stored in radians
 
 public:
 
@@ -122,8 +123,8 @@ public:
 	operator~()const
 	{
 		angle ret;
-		ret.v=(value_type)std::floor(v+0.5f);
-		return ret;
+		ret.v = v+PI;
+		return ret.mod();
 	}
 
 	/*! Returns true if the shortest
@@ -131,16 +132,14 @@ public:
 		right-hand side is clockwise */
 	bool
 	operator<(const angle &rhs)const
-	{ return v<rhs.v; }
-//	{ return dist(rhs).v<(value_type)0.0; }
+		{ return dist(rhs).v<(value_type)0.0; }
 
 	/*! Returns true if the shortest
 		angle between the left-hand and
 		right-hand side is counter-clockwise */
 	bool
 	operator>(const angle &rhs)const
-	{ return v>rhs.v; }
-//	{ return dist(rhs).v>(value_type)0.0; }
+		{ return dist(rhs).v>(value_type)0.0; }
 
 	/*! Returns true if the shortest
 		angle between the left-hand and
@@ -149,8 +148,7 @@ public:
 		point on the unit circle. */
 	bool
 	operator<=(const angle &rhs)const
-	{ return v<=rhs.v; }
-//	{ return dist(rhs).v<=(value_type)0.0; }
+		{ return dist(rhs).v<=(value_type)0.0; }
 
 	/*! Returns true if the shortest
 		angle between the left-hand and
@@ -159,24 +157,21 @@ public:
 		point on the unit circle. */
 	bool
 	operator>=(const angle &rhs)const
-	{ return v>=rhs.v; }
-//	{ return dist(rhs).v>=(value_type)0.0; }
+		{ return dist(rhs).v>=(value_type)0.0; }
 
 	/*! Returns true if the angles
 		are refer to the same point
 		on the unit circle. */
 	bool
 	operator==(const angle &rhs)const
-	{ return v==rhs.v; }
-//	{ return dist(rhs).v==(value_type)0.0; }
+		{ return std::abs(dist(rhs).v)<epsilon; }
 
 	/*! Returns false if the angles
 		are refer to the same point
 		on the unit circle. */
 	bool
 	operator!=(const angle &rhs)const
-	{ return v!=rhs.v; }
-//	{ return dist(rhs).v!=(value_type)0.0; }
+		{ return std::abs(dist(rhs).v)>epsilon; }
 
 	//! Angle Difference Function
 	/*! This function will return the
@@ -237,9 +232,11 @@ private:
 	static value_type rot_floor(value_type x)
 	{ return static_cast<value_type>(std::floor(x/(PI*2))*PI*2); }
 
+	static const value_type epsilon = 1.0e-6;
+
 public:
 	/*
-	** Converstion Classes
+	** Conversion Classes
 	*/
 
 	class rad;
@@ -247,7 +244,7 @@ public:
 	class rot;
 
 	/*
-	** Trigometric Classes
+	** Trigonometric Classes
 	*/
 
 	class sin;