refs #484 Trigonometry methods in CAngle.

src/blackmisc/pq/angle.cpp

@@ -31,5 +31,20 @@ namespace BlackMisc
         {
             return BlackMisc::Math::CMathUtils::PI();
         }
+
+        double CAngle::sin() const
+        {
+            return std::sin(this->value(CAngleUnit::rad()));
+        }
+
+        double CAngle::cos() const
+        {
+            return std::cos(this->value(CAngleUnit::rad()));
+        }
+
+        double CAngle::tan() const
+        {
+            return std::tan(this->value(CAngleUnit::rad()));
+        }
     }
 }

src/blackmisc/pq/angle.h

@@ -60,6 +60,15 @@ namespace BlackMisc
 
             //! PI as convenience method
             static const double &PI();
+
+            //! Sine of angle
+            double sin() const;
+
+            //! Cosine of angle
+            double cos() const;
+
+            //! Tangent of angle
+            double tan() const;
         };
     }
 }