Split true north in API and Blender UI to be editable independent of georeferencing

They are two separate concepts, after all.

src/ifcopenshell-python/test/api/georeference/test_edit_georeferencing.py

@@ -31,7 +31,7 @@ class TestEditGeoreferencing(test.bootstrap.IFC4):
         ifcopenshell.api.georeference.edit_georeferencing(
             self.file,
             projected_crs={"Name": "EPSG:7856"},
-            map_conversion={"Eastings": 123.45, "Northings": 234.56},
+            coordinate_operation={"Eastings": 123.45, "Northings": 234.56},
         )
         crs = self.file.by_type("IfcProjectedCRS")[0]
         assert crs.Name == "EPSG:7856"
@@ -39,15 +39,6 @@ class TestEditGeoreferencing(test.bootstrap.IFC4):
         assert conversion.Eastings == 123.45
         assert conversion.Northings == 234.56
 
-    def test_editing_true_north(self):
-        ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
-        model = ifcopenshell.api.context.add_context(self.file, "Model")
-        plan = ifcopenshell.api.context.add_context(self.file, "Plan")
-        ifcopenshell.api.georeference.add_georeferencing(self.file)
-        ifcopenshell.api.georeference.edit_georeferencing(self.file, true_north=[0.0, 1.0])
-        assert model.TrueNorth[0] == (0.0, 1.0, 0.0)
-        assert plan.TrueNorth[0] == (0.0, 1.0)
-
 
 class TestEditGeoreferencingIFC2X3(test.bootstrap.IFC2X3):
     def test_editing_georeferencing(self):
@@ -56,7 +47,7 @@ class TestEditGeoreferencingIFC2X3(test.bootstrap.IFC2X3):
         ifcopenshell.api.georeference.edit_georeferencing(
             self.file,
             projected_crs={"Name": "EPSG:7856"},
-            map_conversion={"Eastings": 123.45, "Northings": 234.56},
+            coordinate_operation={"Eastings": 123.45, "Northings": 234.56},
         )
         conversion = ifcopenshell.util.element.get_pset(project, "ePSet_MapConversion", verbose=True)
         crs = ifcopenshell.util.element.get_pset(project, "ePSet_ProjectedCRS", verbose=True)

src/ifcopenshell-python/test/api/georeference/test_edit_true_north.py

@@ -0,0 +1,38 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2022 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import numpy as np
+import test.bootstrap
+import ifcopenshell.api.root
+import ifcopenshell.api.context
+import ifcopenshell.api.georeference
+import ifcopenshell.util.geolocation
+
+
+class TestEditTrueNorth(test.bootstrap.IFC4):
+    def test_editing_true_north(self):
+        ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
+        model = ifcopenshell.api.context.add_context(self.file, "Model")
+        plan = ifcopenshell.api.context.add_context(self.file, "Plan")
+        ifcopenshell.api.georeference.edit_true_north(self.file, true_north=[0.0, 1.0])
+        assert model.TrueNorth[0] == (0.0, 1.0, 0.0)
+        assert plan.TrueNorth[0] == (0.0, 1.0)
+        ifcopenshell.api.georeference.edit_true_north(self.file, true_north=[-0.5, 0.8660254])
+        assert np.isclose(ifcopenshell.util.geolocation.get_true_north(self.file), 30)
+        ifcopenshell.api.georeference.edit_true_north(self.file, true_north=30)
+        assert np.isclose(ifcopenshell.util.geolocation.get_true_north(self.file), 30)