diff --git a/src/drc/drc/built-in-macros/_drc_complex_ops.rb b/src/drc/drc/built-in-macros/_drc_complex_ops.rb
index ce8eb9640..fcb737383 100644
--- a/src/drc/drc/built-in-macros/_drc_complex_ops.rb
+++ b/src/drc/drc/built-in-macros/_drc_complex_ops.rb
@@ -269,7 +269,7 @@ CODE
   # The plain function is equivalent to "primary.bbox_min".
   
   def bbox_min
-    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::BoxMinDim, self)
+    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::ParameterType::BoxMinDim, self)
   end
   
   # %DRC%
@@ -284,7 +284,7 @@ CODE
   # The plain function is equivalent to "primary.bbox_max".
 
   def bbox_max
-    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::BoxMaxDim, self)
+    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::ParameterType::BoxMaxDim, self)
   end
   
   # %DRC%
@@ -302,7 +302,7 @@ CODE
   # The plain function is equivalent to "primary.bbox_width".
 
   def bbox_width
-    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::BoxWidth, self)
+    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::ParameterType::BoxWidth, self)
   end
   
   # %DRC%
@@ -320,7 +320,7 @@ CODE
   # The plain function is equivalent to "primary.bbox_height".
 
   def bbox_height
-    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::BoxHeight, self)
+    DRCOpNodeBBoxParameterFilter::new(@engine, RBA::CompoundRegionOperationNode::ParameterType::BoxHeight, self)
   end
   
   # %DRC%
@@ -1537,21 +1537,21 @@ class DRCOpNodeBBoxParameterFilter < DRCOpNodeWithCompare
   attr_accessor :parameter
   attr_accessor :inverse
   
-  def initialize(engine, parameter, input, description)
+  def initialize(engine, parameter, input)
     super(engine)
     self.parameter = parameter
     self.input = input
     self.inverse = false
-    self.description = description
+    self.description = parameter.to_s
   end
   
   def do_create_node(cache)
-    args = [ self.input.create_node(cache), self.inverse ]
+    args = [ self.input.create_node(cache), self.parameter, self.inverse ]
     args << (self.gt ? @engine._make_value(self.gt) + 1 : (self.ge ? @engine._make_value(self.ge) : 0))
     if self.lt || self.le
       args << (self.lt ? @engine._make_value(self.lt) : @engine._make_value(self.le) + 1)
     end
-    RBA::CompoundRegionOperationNode::new_perimeter_filter(*args)
+    RBA::CompoundRegionOperationNode::new_bbox_filter(*args)
   end
 
   def inverted
diff --git a/src/drc/unit_tests/drcGenericTests.cc b/src/drc/unit_tests/drcGenericTests.cc
index cef4927dc..afdec0972 100644
--- a/src/drc/unit_tests/drcGenericTests.cc
+++ b/src/drc/unit_tests/drcGenericTests.cc
@@ -158,3 +158,13 @@ TEST(9d)
 {
   run_test (_this, "9", true);
 }
+
+TEST(10)
+{
+  run_test (_this, "10", false);
+}
+
+TEST(10d)
+{
+  run_test (_this, "10", true);
+}
diff --git a/testdata/drc/drcGenericTests_10.drc b/testdata/drc/drcGenericTests_10.drc
new file mode 100644
index 000000000..3cd607cf0
--- /dev/null
+++ b/testdata/drc/drcGenericTests_10.drc
@@ -0,0 +1,24 @@
+
+source $drc_test_source
+target $drc_test_target
+
+if $drc_test_deep
+  deep
+  threads(0) # easier to debug
+end
+
+l1 = input(1, 0)
+l2 = input(2, 0)
+l3 = input(3, 0)
+
+l1.output(1, 0)
+l2.output(2, 0)
+l3.output(3, 0)
+
+# bbox_predicates
+
+l1.drc(bbox_min > 2.0).output(100, 0)
+l1.drc(bbox_max <= 2.0).output(101, 0)
+l1.drc(bbox_width > 3.0).output(102, 0)
+l1.drc(bbox_height > 11.0).output(103, 0)
+
diff --git a/testdata/drc/drcGenericTests_10.gds b/testdata/drc/drcGenericTests_10.gds
new file mode 100644
index 000000000..b55983b6b
Binary files /dev/null and b/testdata/drc/drcGenericTests_10.gds differ
diff --git a/testdata/drc/drcGenericTests_5.drc b/testdata/drc/drcGenericTests_5.drc
index 0e4cae5e7..33216870a 100644
--- a/testdata/drc/drcGenericTests_5.drc
+++ b/testdata/drc/drcGenericTests_5.drc
@@ -39,3 +39,6 @@ l1.drc(! rectangles).output(141, 0)
 l1.drc(if_all(! rectangles, area < 8.0)).output(150, 0)
 l1.drc(if_any(rectangles, area > 8.0)).output(151, 0)
 
+l1.drc(if_any(corners.count > 4)).output(160, 0)
+l1.drc(if_any(corners.count == 4)).output(161, 0)
+
diff --git a/testdata/drc/drcGenericTests_au5.gds b/testdata/drc/drcGenericTests_au5.gds
index bab8736eb..c904d68d3 100644
Binary files a/testdata/drc/drcGenericTests_au5.gds and b/testdata/drc/drcGenericTests_au5.gds differ
diff --git a/testdata/drc/drcGenericTests_au5d.gds b/testdata/drc/drcGenericTests_au5d.gds
index fa60a6bc5..cd162191c 100644
Binary files a/testdata/drc/drcGenericTests_au5d.gds and b/testdata/drc/drcGenericTests_au5d.gds differ