Add new by query IFC node

src/ifcsverchok/__init__.py

@@ -29,6 +29,7 @@ def nodes_index():
         ("ifc.by_id", "SvIfcById"),
         ("ifc.by_guid", "SvIfcByGuid"),
         ("ifc.by_type", "SvIfcByType"),
+        ("ifc.by_query", "SvIfcByQuery"),
     ])]
 
 def make_node_list():

src/ifcsverchok/nodes/ifc/by_query.py

@@ -0,0 +1,33 @@
+import bpy
+import ifcopenshell
+import ifcopenshell.util.selector
+import ifcsverchok.helper
+from bpy.props import StringProperty
+from sverchok.node_tree import SverchCustomTreeNode
+from sverchok.data_structure import updateNode
+
+
+class SvIfcByQuery(bpy.types.Node, SverchCustomTreeNode, ifcsverchok.helper.SvIfcCore):
+    bl_idname = 'SvIfcByQuery'
+    bl_label = 'IFC By Query'
+    file: StringProperty(name='file', update=updateNode)
+    query: StringProperty(name='query', update=updateNode)
+
+    def sv_init(self, context):
+        self.inputs.new('SvStringsSocket', 'file').prop_name = 'file'
+        self.inputs.new('SvStringsSocket', 'query').prop_name = 'query'
+        self.outputs.new('SvStringsSocket', 'entity')
+
+    def process(self):
+        self.sv_input_names = ['file', 'query']
+        super().process()
+
+    def process_ifc(self, file, query):
+        selector = ifcopenshell.util.selector.Selector()
+        self.outputs['entity'].sv_set([selector.parse(file, query)])
+
+def register():
+    bpy.utils.register_class(SvIfcByQuery)
+
+def unregister():
+    bpy.utils.unregister_class(SvIfcByQuery)