Introduced the concep ArrTraits::ConstructCurve_2 (required by `ArraangementConstructCurveTraits_2 concept)

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/Concepts/ArrTraits--ConstructCurve_2.h

@@ -0,0 +1,26 @@
+namespace ArrTraits {
+
+/*! \ingroup PkgArrangementOnSurface2ConceptsFunctionObjects
+ * \cgalConcept
+ *
+ * \cgalRefines Functor
+ *
+ * \cgalHasModel ArrangementConstructCurveTraits_2::Construct_curve_2
+ */
+class ConstructCurve_2 {
+public:
+
+  /// \name Operations
+  /// A model of this concept must provide:
+  /// @{
+
+  /*! returns a curve connecting `p1` and `p2` (i.e., the
+   * two input points are its endpoints).
+   */
+  ArrTraits::Curve_2 operator()(ArrTraits::Point_2 p1, ArrTraits::Point_2 p2);
+
+  /// @}
+
+}; /* end ArrTraits::ConstructCurve_2 */
+
+}

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/Concepts/ArrangementConstructCurveTraits_2.h

@@ -23,7 +23,7 @@ public:
   /// \name Functor Types
   /// @{
 
-  /*! models the concept `ArrTraits::ConstructXMonotoneCurve_2`.
+  /*! models the concept `ArrTraits::ConstructCurve_2`.
    */
   typedef unspecified_type Construct_curve_2;
 

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/PackageDescription.txt

@@ -184,6 +184,7 @@ implemented as peripheral classes or as free (global) functions.
 - `ArrTraits::MakeXMonotone_2`
 - `ArrTraits::Approximate_2`
 - `ArrTraits::ConstructXMonotoneCurve_2`
+- `ArrTraits::ConstructCurve_2`
 
 \cgalCRPSection{Classes}