diff --git a/src/meshlabplugins/filter_isoparametrization/iso_parametrization.h b/src/meshlabplugins/filter_isoparametrization/iso_parametrization.h
index 33c72af17..2fbc7a4ba 100644
--- a/src/meshlabplugins/filter_isoparametrization/iso_parametrization.h
+++ b/src/meshlabplugins/filter_isoparametrization/iso_parametrization.h
@@ -1835,8 +1835,8 @@ public:
 						MeshType	*_input_mesh,
 						ParamMesh	 * _param_mesh,
 						AbstractMesh *_absMesh,
-						bool test=true,
-						bool use_quality=true)
+            bool test=true)
+//						bool use_quality=true)
 	{
 		param_mesh=_param_mesh;
 		param_mesh->Clear();
diff --git a/src/meshlabplugins/filter_isoparametrization/iso_transfer.h b/src/meshlabplugins/filter_isoparametrization/iso_transfer.h
index 29e0aa4f1..3a0ccab86 100644
--- a/src/meshlabplugins/filter_isoparametrization/iso_transfer.h
+++ b/src/meshlabplugins/filter_isoparametrization/iso_transfer.h
@@ -98,7 +98,7 @@ class IsoTransfer
 		TRGrid.Set(IsoParam.ParaMesh()->face.begin(),IsoParam.ParaMesh()->face.end());
 		ScalarType maxDist=IsoParam.ParaMesh()->bbox.Diag();
 		///then for each vertex find the closest
-		for (int i=0;i<to_assing.vert.size();i++)
+    for (size_t i=0;i<to_assing.vert.size();i++)
 		{
       typename MeshType::VertexType *vert=&to_assing.vert[i];
 			if (!vert->IsD())
@@ -114,7 +114,7 @@ class IsoTransfer
 					  (bary.Y()>=0)&&(bary.Y()<=1)&&
 						(bary.Z()>=0)&&(bary.Z()<=1)))
 				{
-						printf("%d,%3.3f,%3.3f,%3.3f",i,bary.X(),bary.Y(),bary.Z());
+            printf("%i,%3.3f,%3.3f,%3.3f",int(i),bary.X(),bary.Y(),bary.Z());
 						system("pause");
 				}
 				Clamp(bary);
diff --git a/src/meshlabplugins/filter_isoparametrization/local_parametrization.h b/src/meshlabplugins/filter_isoparametrization/local_parametrization.h
index 5ae24d889..250c9a75a 100644
--- a/src/meshlabplugins/filter_isoparametrization/local_parametrization.h
+++ b/src/meshlabplugins/filter_isoparametrization/local_parametrization.h
@@ -743,7 +743,7 @@ template <class MeshType>
 void AssingFather(typename MeshType::VertexType &v,
 									typename MeshType::FaceType *father,
 									typename MeshType::CoordType &bary,
-									MeshType &domain)
+                  MeshType &/*domain*/)
 {
 #ifdef _DEBUG
 	const typename MeshType::ScalarType eps=(typename MeshType::ScalarType)0.00001;
diff --git a/src/meshlabplugins/filter_isoparametrization/parametrizator.h b/src/meshlabplugins/filter_isoparametrization/parametrizator.h
index 963dc3e39..f1d4bedef 100644
--- a/src/meshlabplugins/filter_isoparametrization/parametrizator.h
+++ b/src/meshlabplugins/filter_isoparametrization/parametrizator.h
@@ -314,7 +314,7 @@ private:
 				///take the face that has lower number of vertices
 				BaseFace *fmin=vfi2.F();
 				int index=vfi2.I();
-				int sizeMin=fmin->vertices_bary.size();
+        size_t sizeMin=fmin->vertices_bary.size();
 				while (!vfi2.End())
 				{
 					BaseFace *f=vfi2.F();
@@ -759,7 +759,7 @@ public:
 	void ScaleMesh(MeshType &m,
 								 const ScalarType &factor)
 	{
-		for (int i=0;i<m.vert.size();i++)
+    for (size_t i=0;i<m.vert.size();i++)
 			if (!m.vert[i].IsD())
 				m.vert[i].P()*=factor;
 	}
@@ -767,7 +767,7 @@ public:
 	template <class MeshType>
 	void TranslateMesh(MeshType &m,const typename MeshType::CoordType &vect)
 	{
-		for (int i=0;i<m.vert.size();i++)
+    for (size_t i=0;i<m.vert.size();i++)
 			if (!m.vert[i].IsD())
 				m.vert[i].P()+=vect;
 	}