Do_intersect added

manual for global functions intersection and do_intersect prepared
but not included yet (problem of name clash with the same Kernel 
global functions to be solved first)

Circular_kernel_2/doc_tex/Circular_kernel_2_ref/CircularKernel.tex

@@ -64,6 +64,8 @@ constructions and other functionalities.
 
 \ccNestedType{Do_overlap_2}{Model of \ccc{CircularKernel::DoOverlap_2}.}
 
+\ccNestedType{Do_intersect_2}{Model of \ccc{CircularKernel::DoIntersect_2}.}
+
 \ccNestedType{Bounded_side_2}{Model of \ccc{CircularKernel::BoundedSide_2}.}
 \ccGlue
 \ccNestedType{Has_on_bounded_side_2}{Model of \ccc{CircularKernel::HasOnBoundedSide_2}.}

Circular_kernel_2/doc_tex/Circular_kernel_2_ref/FunctorsOtherPredicates.tex

@@ -57,6 +57,34 @@ An object \ccVar\ of this type must provide:
 	const CircularKernel::Circular_arc_2 & a1);}
 {For two circular arcs.}
 
+\end{ccRefFunctionObjectConcept}
+\begin{ccRefFunctionObjectConcept}{CircularKernel::DoIntersect_2}
+
+\ccDefinition
+
+Testing whether two curves intersect.
+
+\ccRefines
+
+\ccc{Kernel::DoIntersect_2}
+
+\ccCreationVariable{fo}
+
+An object \ccVar\ of this type must provide:
+
+\ccMemberFunction{bool operator()
+	(const Type1 & obj1, const Type2 & obj2);}
+{determines if two geometric objects of type Type1 and Type2 intersect or not.}
+
+for all pairs \ccc{Type1} and \ccc{Type2}, where the types 
+\ccc{Type1} and \ccc{Type2} can be any of the following:
+\begin{itemize}
+\item {} \ccc{CircularKernel::Line_2}
+\item {} \ccc{CircularKernel::Line_arc_2}
+\item {} \ccc{CircularKernel::Circle_2}
+\item {} \ccc{CircularKernel::Circular_arc_2}
+\end{itemize} 
+
 \end{ccRefFunctionObjectConcept}
 \begin{ccRefFunctionObjectConcept}{CircularKernel::BoundedSide_2}
 

Circular_kernel_2/doc_tex/Circular_kernel_2_ref/Global_functions.tex

@@ -1,95 +1,18 @@
-\begin{ccRefFunction}{compare_x}
+\begin{ccRefFunction}{intersection}
 
-\ccDefinition
+\ccFunction{template < class OutputIterator >
+    	OutputIterator 
+	intersection(Type1<CircularKernel> obj1, Type2<CircularKernel> obj2,
+			OutputIterator result);}
+{Calls the operator() of \ccc{CircularKernel::Intersect_2.}
 
-\ccFunction{template < class CircularKernel > 
-	Comparison_result compare_x
-	(const Circular_arc_point_2<CircularKernel> &p,
-	const Circular_arc_point_2<CircularKernel> &q);}
-        {Calls the operator() of \ccc{CircularKernel::CompareX_2}.}
-
-\ccSeeAlso
-
-\ccRefConceptPage{CircularKernel::CompareX_2}
 \end{ccRefFunction}
-\begin{ccRefFunction}{compare_y}
+\begin{ccRefFunction}{do_intersect}
 
-\ccDefinition
+\ccFunction{template < class OutputIterator >
+    	OutputIterator 
+	do_intersect(Type1<CircularKernel> obj1, Type2<CircularKernel> obj2,
+			OutputIterator result);}
+{Calls the operator() of \ccc{CircularKernel::DoIntersect_2.}
 
-\ccFunction{template < class CircularKernel > 
-	Comparison_result compare_y
-	(const Circular_arc_point_2<CircularKernel> &p,
-	const Circular_arc_point_2<CircularKernel> &q);}
-        {Calls the operator() of \ccc{CircularKernel::CompareY_2}.}
-
-\ccSeeAlso
-
-\ccRefConceptPage{CircularKernel::CompareY_2}
-\end{ccRefFunction}
-\begin{ccRefFunction}{compare_xy}
-
-\ccDefinition
-
-\ccFunction{template < class CircularKernel > 
-	Comparison_result compare_xy
-	(const Circular_arc_point_2<CircularKernel> &p,
-	const Circular_arc_point_2<CircularKernel> &q);}
-        {Calls the operator() of \ccc{CircularKernel::CompareXY_2}.}
-
-\ccSeeAlso
-
-\ccRefConceptPage{CircularKernel::CompareXY_2}
-\end{ccRefFunction}
-%\begin{ccRefFunction}{make_x_monotone}
-
-%\ccDefinition
-
-%\ccFunction{template < class CircularKernel, class OutputIterator >
-%    OutputIterator make_x_monotone
-%	(const Circular_arc_2<CircularKernel> &ca,
-%	OutputIterator res);}
-%        {Calls the operator() of \ccc{CircularKernel::MakeXMonotone_2}.}
-
-%\ccSeeAlso
-
-%\ccRefConceptPage{CircularKernel::MakeXMonotone_2}
-%\end{ccRefFunction}
-%\begin{ccRefFunction}{intersect}
-
-%\ccDefinition
-
-%\ccFunction{template < class CircularKernel, class OutputIterator >
-%    OutputIterator intersect
-%	(const Circle_2<CircularKernel> &ca1,
-%	const Circle_2<CircularKernel> &ca2, 
-%	OutputIterator res);}
-%        {Calls the operator() of \ccc{CircularKernel::Intersect_2}.}
-
-%\ccFunction{template < class CircularKernel, class OutputIterator >
-%    OutputIterator intersect
-%	(const Circular_arc_2<CircularKernel> &ca1,
-%	const Circular_arc_2<CircularKernel> &ca2, 
-%	OutputIterator res);}
-%        {Calls the operator() of \ccc{CircularKernel::Intersect_2}.}
-
-%\ccSeeAlso
-
-%\ccRefConceptPage{CircularKernel::Intersect_2}
-%\end{ccRefFunction}
-
-\begin{ccRefFunction}{get_equation}
-
-\ccFunction{template < class CircularKernel >
-	CircularKernel::Polynomial_1_2
-	get_equation(const Line_2<CircularKernel> & c);}
-	{Calls the operator() of \ccc{CircularKernel::GetEquation}.}
-
-\ccFunction{template < class CircularKernel >
-	CircularKernel::Polynomial_for_circles_2_2
-	get_equation(const Circle_2<CircularKernel> & c);}
-	{Calls the operator() of \ccc{CircularKernel::GetEquation}.}
-
-\ccSeeAlso
-
-\ccRefConceptPage{CircularKernel::GetEquation}
 \end{ccRefFunction}

Circular_kernel_2/doc_tex/Circular_kernel_2_ref/intro.tex

@@ -40,6 +40,8 @@
 
 \ccRefConceptPage{CircularKernel::DoOverlap_2}
 
+\ccRefConceptPage{CircularKernel::DoIntersect_2}
+
 \ccRefConceptPage{CircularKernel::BoundedSide_2}\\
 \ccRefConceptPage{CircularKernel::HasOnBoundedSide_2}\\
 \ccRefConceptPage{CircularKernel::HasOnUnboundedSide_2}
@@ -60,6 +62,10 @@
 
 \ccRefConceptPage{CircularKernel::GetEquation}
 
+%	\subsubsection*{Global functions}	
+
+%\ccRefIdfierPage{CGAL::intersection}
+%\ccRefIdfierPage{CGAL::do_intersect}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \section{Algebraic Concepts}
@@ -133,24 +139,3 @@
 \ccRefIdfierPage{CGAL::Root_for_circles_2_2<FT>}
 
 \ccRefIdfierPage{CGAL::Root_of_traits_2<RT>}
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%\section{Geometric global functions}
-
-%	\subsubsection*{Predicates}
-%\ccRefIdfierPage{CGAL::compare_x}\\
-%\ccRefIdfierPage{CGAL::compare_y}\\
-%\ccRefIdfierPage{CGAL::compare_xy}
-
-%%\ccRefIdfierPage{CGAL::compare_y_at_x}\\
-%%\ccRefIdfierPage{CGAL::compare_y_to_right}
-
-%	\subsubsection*{Constructions}
-%%\ccRefIdfierPage{CGAL::make_x_monotone}\\
-%%\ccRefIdfierPage{CGAL::intersect}
-
-%\ccRefIdfierPage{CGAL::make_root_of_2}
-
-%	\subsubsection*{Accessors} 
-%\ccRefIdfierPage{CGAL::get_equation}