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Merging projects can now handle projects with different false origins

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Warning: I haven't yet looked at rotations. Yikes. No CRS reprojection either.
This commit is contained in:
Dion Moult
2024-06-29 17:05:06 +10:00
parent 0d401c9272
commit 9a871f1459
2 changed files with 68 additions and 9 deletions
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src/ifcpatch/test/test_MergeProject.py
+44 -1
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@@ -18,7 +18,7 @@
import ifcpatch
import ifcopenshell
import ifcopenshell.api
import ifcopenshell.api.georeference
import ifcopenshell.util.placement
import test.bootstrap
import tempfile
@@ -81,5 +81,48 @@ class TestMergeProject(test.bootstrap.IFC4):
assert len(output.by_type("IfcProjectedCRS")) == 1
assert len(output.by_type("IfcMapConversion")) == 1
def test_shifting_the_source_project_to_match_the_original_project_origin(self):
self.file = self.setup_project(self.file)
second_file = self.setup_project()
ifcopenshell.api.georeference.add_georeferencing(self.file)
ifcopenshell.api.georeference.edit_georeferencing(
self.file, coordinate_operation={"Eastings": 10, "Northings": 20}, projected_crs={"Name": "EPSG:1234"}
)
ifcopenshell.api.georeference.add_georeferencing(second_file)
ifcopenshell.api.georeference.edit_georeferencing(
second_file, coordinate_operation={"Eastings": 30000, "Northings": 40000}, projected_crs={"Name": "EPSG:0"}
)
# Original file is in meters
wall1 = self.file.by_type("IfcWall")[0]
m1 = ifcopenshell.util.placement.get_local_placement(wall1.ObjectPlacement)
assert np.allclose(m1[:, 3], (1, 2, 3, 1))
global_m1 = ifcopenshell.util.geolocation.auto_local2global(self.file, m1, should_return_in_map_units=False)
assert np.allclose(global_m1[:, 3], (11, 22, 3, 1))
# Second file is in millimeters with a different false origin
wall1 = second_file.by_type("IfcWall")[0]
m1 = ifcopenshell.util.placement.get_local_placement(wall1.ObjectPlacement)
assert np.allclose(m1[:, 3], (1000, 2000, 3000, 1))
global_m1 = ifcopenshell.util.geolocation.auto_local2global(second_file, m1, should_return_in_map_units=False)
assert np.allclose(global_m1[:, 3], (31000, 42000, 3000, 1))
output = ifcpatch.execute({"file": self.file, "recipe": "MergeProject", "arguments": [second_file]})
# In the future we may use proj to support reprojection from different CRSes. For now... nope!
if self.file.schema != "IFC2X3":
assert output.by_type("IfcProjectedCRS")[0].Name == "EPSG:1234"
# The results should be in meters with the false origin of the original file
params = ifcopenshell.util.geolocation.get_helmert_transformation_parameters(output)
assert params.e == 10
assert params.n == 20
wall1, wall2 = output.by_type("IfcWall")
m1 = ifcopenshell.util.placement.get_local_placement(wall1.ObjectPlacement)
m2 = ifcopenshell.util.placement.get_local_placement(wall2.ObjectPlacement)
assert np.allclose(m1[:, 3], (1, 2, 3, 1))
assert np.allclose(m2[:, 3], (21, 22, 3, 1))
class TestMergeProjectIFC2X3(test.bootstrap.IFC2X3, TestMergeProject):
pass