freecad-cam/Mod/BIM/nativeifc/ifc_selftest.py
2026-02-01 01:59:24 +01:00

391 lines
14 KiB
Python

# ***************************************************************************
# * *
# * Copyright (c) 2023 Yorik van Havre <yorik@uncreated.net> *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * GNU Library General Public License for more details. *
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# ***************************************************************************
"""Unit test for the Native IFC module"""
import os
import time
import tempfile
import FreeCAD
import Draft
import Arch
import unittest
import requests
from nativeifc import ifc_import
from nativeifc import ifc_tools
from nativeifc import ifc_geometry
from nativeifc import ifc_materials
from nativeifc import ifc_layers
from nativeifc import ifc_psets
from nativeifc import ifc_objects
from nativeifc import ifc_generator
import ifcopenshell
from ifcopenshell.util import element
import difflib
IFCOPENHOUSE_IFC4 = (
"https://github.com/aothms/IfcOpenHouse/raw/master/IfcOpenHouse_IFC4.ifc"
)
IFC_FILE_PATH = None # downloaded IFC file path
FCSTD_FILE_PATH = None # saved FreeCAD file
PARAMS = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/NativeIFC")
SINGLEDOC = False # This allows to force singledoc mode for all tests
SDU = int(SINGLEDOC) # number of objects is different in singledoc
"""
unit tests for the NativeIFC functionality. To run the tests, either:
- in terminal mode: FreeCAD -t ifc_selftest
- in the FreeCAD UI: Switch to Test Framework workbench, press "Self test" and
choose ifc_selftest in the list
"""
def getIfcFilePath():
global IFC_FILE_PATH
if not IFC_FILE_PATH:
path = tempfile.mkstemp(suffix=".ifc")[1]
results = requests.get(IFCOPENHOUSE_IFC4)
with open(path, "wb") as f:
f.write(results.content)
IFC_FILE_PATH = path
return IFC_FILE_PATH
def clearObjects():
names = [o.Name for o in FreeCAD.getDocument("IfcTest").Objects]
for n in names:
FreeCAD.getDocument("IfcTest").removeObject(n)
def compare(file1, file2):
with open(file1) as f1:
f1_text = f1.readlines()
with open(file2) as f2:
f2_text = f2.readlines()
res = [
l
for l in difflib.unified_diff(
f1_text, f2_text, fromfile=file1, tofile=file2, lineterm=""
)
]
res = [l for l in res if l.startswith("+") or l.startswith("-")]
res = [l for l in res if not l.startswith("+++") and not l.startswith("---")]
return res
class NativeIFCTest(unittest.TestCase):
def setUp(self):
# setting a new document to hold the tests
if FreeCAD.ActiveDocument:
if FreeCAD.ActiveDocument.Name != "IfcTest":
FreeCAD.newDocument("IfcTest")
else:
FreeCAD.newDocument("IfcTest")
FreeCAD.setActiveDocument("IfcTest")
def tearDown(self):
FreeCAD.closeDocument("IfcTest")
pass
def test01_ImportCoinSingle(self):
FreeCAD.Console.PrintMessage(
"1. NativeIFC import: Single object, coin mode..."
)
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=0,
shapemode=1,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
fco = len(FreeCAD.getDocument("IfcTest").Objects)
self.assertTrue(fco == 1 - SDU, "ImportCoinSingle failed")
def test02_ImportCoinStructure(self):
FreeCAD.Console.PrintMessage(
"2. NativeIFC import: Model structure, coin mode..."
)
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=1,
shapemode=1,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
fco = len(FreeCAD.getDocument("IfcTest").Objects)
self.assertTrue(fco == 4 - SDU, "ImportCoinStructure failed")
def test03_ImportCoinFull(self):
global FCSTD_FILE_PATH
FreeCAD.Console.PrintMessage("3. NativeIFC import: Full model, coin mode...")
clearObjects()
fp = getIfcFilePath()
d = ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=1,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
path = tempfile.mkstemp(suffix=".FCStd")[1]
d.saveAs(path)
FCSTD_FILE_PATH = path
fco = len(FreeCAD.getDocument("IfcTest").Objects)
self.assertTrue(fco > 4 - SDU, "ImportCoinFull failed")
def test04_ImportShapeFull(self):
FreeCAD.Console.PrintMessage("4. NativeIFC import: Full model, shape mode...")
clearObjects()
fp = getIfcFilePath()
d = ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=0,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
fco = len(FreeCAD.getDocument("IfcTest").Objects)
self.assertTrue(fco > 4 - SDU, "ImportShapeFull failed")
def test05_ImportFreeCAD(self):
FreeCAD.Console.PrintMessage(
"5. NativeIFC FreeCAD import: NativeIFC coin file..."
)
clearObjects()
doc = FreeCAD.open(FCSTD_FILE_PATH)
obj = doc.Objects[-1]
proj = ifc_tools.get_project(obj)
ifcfile = ifc_tools.get_ifcfile(proj)
print(ifcfile)
self.assertTrue(ifcfile, "ImportFreeCAD failed")
def test06_ModifyObjects(self):
FreeCAD.Console.PrintMessage("6. NativeIFC Modifying IFC document...")
doc = FreeCAD.open(FCSTD_FILE_PATH)
obj = doc.Objects[-1]
obj.Label = "Modified name"
proj = ifc_tools.get_project(obj)
proj.IfcFilePath = proj.IfcFilePath[:-4] + "_modified.ifc"
ifc_tools.save_ifc(proj)
ifc_diff = compare(IFC_FILE_PATH, proj.IfcFilePath)
obj.ShapeMode = 0
obj.Proxy.execute(obj)
self.assertTrue(
obj.Shape.Volume > 2 and len(ifc_diff) <= 5, "ModifyObjects failed"
)
def test07_CreateDocument(self):
FreeCAD.Console.PrintMessage("7. NativeIFC Creating new IFC document...")
doc = FreeCAD.ActiveDocument
ifc_tools.create_document(doc, silent=True)
fco = len(FreeCAD.getDocument("IfcTest").Objects)
print(FreeCAD.getDocument("IfcTest").Objects)
self.assertTrue(fco == 1 - SDU, "CreateDocument failed")
def test08_ChangeIFCSchema(self):
FreeCAD.Console.PrintMessage("8. NativeIFC Changing IFC schema...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=1,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
obj = FreeCAD.getDocument("IfcTest").Objects[-1]
proj = ifc_tools.get_project(obj)
oldid = obj.StepId
proj.Proxy.silent = True
proj.Schema = "IFC2X3"
FreeCAD.getDocument("IfcTest").recompute()
self.assertTrue(obj.StepId != oldid, "ChangeIFCSchema failed")
def test09_CreateBIMObjects(self):
FreeCAD.Console.PrintMessage("9. NativeIFC Creating BIM objects...")
doc = FreeCAD.ActiveDocument
proj = ifc_tools.create_document(doc, silent=True)
site = Arch.makeSite()
site = ifc_tools.aggregate(site, proj)
bldg = Arch.makeBuilding()
bldg = ifc_tools.aggregate(bldg, site)
storey = Arch.makeFloor()
storey = ifc_tools.aggregate(storey, bldg)
wall = Arch.makeWall(None, 200, 400, 20)
wall = ifc_tools.aggregate(wall, storey)
column = Arch.makeStructure(None, 20, 20, 200)
column.IfcType = "Column"
column = ifc_tools.aggregate(column, storey)
beam = Arch.makeStructure(None, 20, 200, 20)
beam.IfcType = "Beam"
beam = ifc_tools.aggregate(beam, storey)
rect = Draft.makeRectangle(200, 200)
slab = Arch.makeStructure(rect, height=20)
slab.IfcType = "Slab"
slab = ifc_tools.aggregate(slab, storey)
# TODO create door, window
fco = len(FreeCAD.getDocument("IfcTest").Objects)
ifco = len(proj.Proxy.ifcfile.by_type("IfcRoot"))
print(ifco, "IFC objects created")
self.assertTrue(fco == 8 - SDU and ifco == 12, "CreateDocument failed")
def test10_ChangePlacement(self):
FreeCAD.Console.PrintMessage("10. NativeIFC Changing Placement...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=1,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
obj = FreeCAD.getDocument("IfcTest").getObject("IfcObject00" + str(4 - SDU))
elem = ifc_tools.get_ifc_element(obj)
obj.Placement.move(FreeCAD.Vector(100, 200, 300))
new_plac = ifcopenshell.util.placement.get_local_placement(elem.ObjectPlacement)
new_plac = str(new_plac).replace(" ", "").replace("\n", "")
target = "[[1.0.0.100.][0.1.0.200.][0.0.1.300.][0.0.0.1.]]"
self.assertTrue(new_plac == target, "ChangePlacement failed")
def test11_ChangeGeometry(self):
FreeCAD.Console.PrintMessage("11. NativeIFC Changing Geometry...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=0,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
obj = FreeCAD.getDocument("IfcTest").getObject("IfcObject004")
ifc_geometry.add_geom_properties(obj)
obj.ExtrusionDepth = "6000 mm"
FreeCAD.getDocument("IfcTest").recompute()
self.assertTrue(obj.Shape.Volume > 1500000, "ChangeGeometry failed")
def test12_RemoveObject(self):
from nativeifc import ifc_observer
ifc_observer.add_observer()
FreeCAD.Console.PrintMessage("12. NativeIFC Remove object...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=0,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
ifcfile = ifc_tools.get_ifcfile(FreeCAD.getDocument("IfcTest").Objects[-1])
count1 = len(ifcfile.by_type("IfcProduct"))
FreeCAD.getDocument("IfcTest").removeObject("IfcObject004")
count2 = len(ifcfile.by_type("IfcProduct"))
self.assertTrue(count2 < count1, "RemoveObject failed")
def test13_Materials(self):
FreeCAD.Console.PrintMessage("13. NativeIFC Materials...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=0,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
proj = FreeCAD.getDocument("IfcTest").Objects[0]
ifc_materials.load_materials(proj)
prod = FreeCAD.getDocument("IfcTest").getObject("IfcObject006")
ifcfile = ifc_tools.get_ifcfile(prod)
mats_before = ifcfile.by_type("IfcMaterialDefinition")
mat = Arch.makeMaterial("Red")
ifc_materials.set_material(mat, prod)
elem = ifc_tools.get_ifc_element(prod)
res = ifcopenshell.util.element.get_material(elem)
mats_after = ifcfile.by_type("IfcMaterialDefinition")
self.assertTrue(len(mats_after) == len(mats_before) + 1, "Materials failed")
def test14_Layers(self):
FreeCAD.Console.PrintMessage("14. NativeIFC Layers...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=0,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
proj = FreeCAD.getDocument("IfcTest").Objects[0]
ifcfile = ifc_tools.get_ifcfile(proj)
lays_before = ifcfile.by_type("IfcPresentationLayerAssignment")
layer = ifc_layers.create_layer("My Layer", proj)
prod = FreeCAD.getDocument("IfcTest").getObject("IfcObject006")
ifc_layers.add_to_layer(prod, layer)
lays_after = ifcfile.by_type("IfcPresentationLayerAssignment")
self.assertTrue(len(lays_after) == len(lays_before) + 1, "Layers failed")
def test15_Psets(self):
FreeCAD.Console.PrintMessage("15. NativeIFC Psets...")
clearObjects()
fp = getIfcFilePath()
ifc_import.insert(
fp,
"IfcTest",
strategy=2,
shapemode=0,
switchwb=0,
silent=True,
singledoc=SINGLEDOC,
)
obj = FreeCAD.getDocument("IfcTest").getObject("IfcObject004")
ifcfile = ifc_tools.get_ifcfile(obj)
pset = ifc_psets.add_pset(obj, "Pset_Custom")
ifc_psets.add_property(ifcfile, pset, "MyMessageToTheWorld", "Hello, World!")
self.assertTrue(ifc_psets.has_psets(obj), "Psets failed")