MeshTools: hint use of vector member slicing in removeDuplicatesFuzzy().

doc/snippets/MeshTools.cpp

@@ -181,7 +181,7 @@ Containers::Array<Vector3> positions = mesh.positions3DAsArray();
 /* Deduplicate the positions and create a mapping array */
 Containers::Pair<Containers::Array<UnsignedInt>, std::size_t> out =
     MeshTools::removeDuplicatesFuzzyInPlace(
-        Containers::arrayCast<2, Float>(stridedArrayView(positions)));
+        stridedArrayView(positions).slice(&Vector3::data));
 Containers::Array<UnsignedInt> indexMapping = std::move(out.first());
 arrayResize(positions, out.second());
 
@@ -369,15 +369,24 @@ data = data.prefix(unique.second());
 
 {
 /* [removeDuplicatesFuzzy] */
-Containers::ArrayView<Vector3> positions;
+Containers::StridedArrayView1D<Float> data;
 
 Containers::Pair<Containers::Array<UnsignedInt>, std::size_t> unique =
-    MeshTools::removeDuplicatesFuzzyInPlace(
+    MeshTools::removeDuplicatesFuzzyInPlace(data);
-        Containers::arrayCast<2, Float>(positions));
+data = data.prefix(unique.second());
-positions = positions.prefix(unique.second());
 /* [removeDuplicatesFuzzy] */
 }
 
+{
+/* [removeDuplicatesFuzzy-vector-slice] */
+Containers::StridedArrayView1D<Vector3> positions;
+
+Containers::Pair<Containers::Array<UnsignedInt>, std::size_t> unique =
+    MeshTools::removeDuplicatesFuzzyInPlace(positions.slice(&Vector3::data));
+positions = positions.prefix(unique.second());
+/* [removeDuplicatesFuzzy-vector-slice] */
+}
+
 #ifdef MAGNUM_BUILD_DEPRECATED
 {
 CORRADE_IGNORE_DEPRECATED_PUSH

src/Magnum/MeshTools/RemoveDuplicates.h

@@ -225,6 +225,13 @@ use @ref removeDuplicatesFuzzyIndexedInPlace(const Containers::StridedArrayView1
 and friends instead. Use @ref removeDuplicatesFuzzyInPlaceInto() to place the
 indices into existing memory instead of allocating a new array.
 
+Overloads for vector, matrix and other math types are not provided because
+there would be too many variants. Instead you can slice to
+@ref Math::Vector::data(), @ref Math::RectangularMatrix::data() etc., which is
+then convertible to a 2D view:
+
+@snippet MeshTools.cpp removeDuplicatesFuzzy-vector-slice
+
 If you want to remove duplicates in multiple incidental arrays, first remove
 duplicates in each array separately and then combine the resulting index arrays
 back into a single one using @ref combineIndexedAttributes().