Merge branch 'warn3' into 'master'

More warnings fixed

See merge request !101

src/OpenMesh/Tools/Decimater/ModNormalDeviationT.hh

@@ -214,7 +214,8 @@ public:
       // the smaller the factor, the smaller normal_deviation_ gets
       // thus creating a stricter constraint
       // division by error_tolerance_factor_ is for normalization
-      Scalar normal_deviation = (normal_deviation_ * static_cast<Scalar>(180.0)/static_cast<Scalar>(M_PI) ) * _factor / this->error_tolerance_factor_;
+      Scalar normal_deviation = normal_deviation_ *  static_cast<Scalar>(  180.0 / M_PI * _factor / this->error_tolerance_factor_);
+
       set_normal_deviation(normal_deviation);
       this->error_tolerance_factor_ = _factor;
     }

src/OpenMesh/Tools/Decimater/ModRoundnessT.hh

@@ -185,7 +185,7 @@ class ModRoundnessT : public ModBaseT<MeshT>
         // the smaller the factor, the smaller min_r_ gets
         // thus creating a stricter constraint
         // division by error_tolerance_factor_ is for normalization
-        value_type min_roundness = min_r_ * _factor / this->error_tolerance_factor_;
+        value_type min_roundness = min_r_ * static_cast<value_type>(_factor / this->error_tolerance_factor_);
         set_min_roundness(min_roundness);
         this->error_tolerance_factor_ = _factor;
       }

src/OpenMesh/Tools/Subdivider/Uniform/LoopT.hh

@@ -231,7 +231,7 @@ private:
         double   t      = (3.0 + 2.0 * cos( 2.0 * M_PI * inv_v) );
         double   alpha  = (40.0 - t * t)/64.0;
 
-        return weight_t( 1.0-alpha, inv_v*alpha);
+        return weight_t( static_cast<real_t>(1.0-alpha), static_cast<real_t>(inv_v*alpha) );
       }
       return weight_t(0.0, 0.0);
     }