diff -r ea4a61b4a325 -r 2db69e2c5673 svghmi/geometry.ysl2
--- a/svghmi/geometry.ysl2	Thu Feb 25 11:22:10 2021 +0100
+++ b/svghmi/geometry.ysl2	Fri Feb 26 10:00:14 2021 +0100
@@ -131,12 +131,13 @@
     }
 }
 
+const "groups", "/svg:svg | //svg:g";
+
 // return overlapping geometry for a given element
 // all intersercting element are returned
 // except groups, that must be contained to be counted in
 def "func:overlapping_geometry" {
     param "elt";
-    const "groups", "/svg:svg | //svg:g";
     const "g", "$geometry[@Id = $elt/@id]"; 
     const "candidates", "$geometry[@Id != $elt/@id]";
     result """$candidates[(@Id = $groups/@id and (func:intersect($g, .) = 9)) or