diff --git a/libs/patch/PatchIterators.h b/libs/patch/PatchIterators.h
index a45e34873a..02fda363f6 100644
--- a/libs/patch/PatchIterators.h
+++ b/libs/patch/PatchIterators.h
@@ -151,36 +151,36 @@ class SinglePatchColumnIterator :
     }
 };
 
-// An iterator traversing a the given patch column-wise, iterating over
-// one row after the other (which are optionally constrained to [startRow..endRow])
+// An iterator traversing a given patch column-wise, iterating over
+// one column after the other (which are optionally constrained to [startColumn..endColumn])
 class ColumnWisePatchIterator :
     public PatchControlIterator
 {
 public:
     ColumnWisePatchIterator(IPatch& patch) :
-        ColumnWisePatchIterator(patch, 0, patch.getHeight() - 1)
+        ColumnWisePatchIterator(patch, 0, patch.getWidth() - 1)
     {
-        assert(patch.getHeight() > 0);
+        assert(patch.getWidth() > 0);
     }
 
-    ColumnWisePatchIterator(IPatch& patch, std::size_t startRow, std::size_t endRow) :
-        PatchControlIterator(patch, startRow, 0, 
-            std::bind(ColumnWisePatchIterator::moveNext, std::placeholders::_1, std::ref(patch), endRow))
+    ColumnWisePatchIterator(IPatch& patch, std::size_t startColumn, std::size_t endColumn) :
+        PatchControlIterator(patch, 0, startColumn, 
+            std::bind(ColumnWisePatchIterator::moveNext, std::placeholders::_1, std::ref(patch), endColumn))
     {}
 
 private:
-    static void moveNext(PatchControlIterator& it, const IPatch& patch, std::size_t endRow)
+    static void moveNext(PatchControlIterator& it, const IPatch& patch, std::size_t endColumn)
     {
-        auto nextColumn = it.getColumn() + 1;
-        auto nextRow = it.getRow();
+        auto nextRow = it.getRow() + 1;
+        auto nextColumn = it.getColumn();
 
-        if (nextColumn >= patch.getWidth())
+        if (nextRow >= patch.getHeight())
         {
-            // Advance to the next row
+            // Advance to the next column
             // If that doesn't succeed, just leave the indices out of bounds
-            if (++nextRow <= endRow)
+            if (++nextColumn <= endColumn)
             {
-                nextColumn = 0;
+                nextRow = 0;
             }
         }
 
@@ -188,36 +188,36 @@ class ColumnWisePatchIterator :
     }
 };
 
-// An iterator traversing a the given patch row-wise, iterating over
-// one column after the other (which are optionally constrained to [startColumn..endColumn])
+// An iterator traversing a given patch row-wise, iterating over
+// one row after the other (which are optionally constrained to [startRow..endRow])
 class RowWisePatchIterator :
     public PatchControlIterator
 {
 public:
     RowWisePatchIterator(IPatch& patch) :
-        RowWisePatchIterator(patch, 0, patch.getWidth() - 1)
+        RowWisePatchIterator(patch, 0, patch.getHeight() - 1)
     {
-        assert(patch.getWidth() > 0);
+        assert(patch.getHeight() > 0);
     }
 
-    RowWisePatchIterator(IPatch& patch, std::size_t startColumn, std::size_t endColumn) :
-        PatchControlIterator(patch, startColumn, 0, 
-            std::bind(RowWisePatchIterator::moveNext, std::placeholders::_1, std::ref(patch), endColumn))
+    RowWisePatchIterator(IPatch& patch, std::size_t startRow, std::size_t endRow) :
+        PatchControlIterator(patch, startRow, 0,
+            std::bind(RowWisePatchIterator::moveNext, std::placeholders::_1, std::ref(patch), endRow))
     {}
 
 private:
-    static void moveNext(PatchControlIterator& it, const IPatch& patch, std::size_t endColumn)
+    static void moveNext(PatchControlIterator& it, const IPatch& patch, std::size_t endRow)
     {
-        auto nextRow = it.getRow() + 1;
-        auto nextColumn = it.getColumn();
+        auto nextColumn = it.getColumn() + 1;
+        auto nextRow = it.getRow();
 
-        if (nextRow >= patch.getHeight())
+        if (nextColumn >= patch.getWidth())
         {
-            // Advance to the next column
+            // Advance to the next row
             // If that doesn't succeed, just leave the indices out of bounds
-            if (++nextColumn <= endColumn)
+            if (++nextRow <= endRow)
             {
-                nextRow = 0;
+                nextColumn = 0;
             }
         }