mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-13 19:07:57 +00:00
Dion Moult
114 lines
4.4 KiB
Python
114 lines
4.4 KiB
Python
import numpy as np
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import ifcopenshell.util.geolocation
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from behave import step
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from utils import IfcFile
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from utils import IfcFile, assert_number, assert_type
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def a2p(o, z, x):
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y = np.cross(z, x)
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r = np.eye(4)
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r[:-1,:-1] = x,y,z
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r[-1,:-1] = o
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return r.T
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def get_axis2placement(plc):
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z = np.array(plc.Axis.DirectionRatios if plc.Axis else (0,0,1))
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x = np.array(plc.RefDirection.DirectionRatios if plc.RefDirection else (1,0,0))
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o = plc.Location.Coordinates
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return a2p(o,z,x)
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def get_local_placement(plc):
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if plc is None:
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return np.eye(4)
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if plc.PlacementRelTo is None:
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parent = np.eye(4)
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else:
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parent = get_local_placement(plc.PlacementRelTo)
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return np.dot(get_axis2placement(plc.RelativePlacement), parent)
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def get_decimal_points(value):
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try:
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return len(value.split('.')[1])
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except:
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return 0
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def get_containing_spatial_elements(element):
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results = []
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if element.is_a('IfcSpatialElement'):
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results.append(element)
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for rel in element.Decomposes:
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if rel.is_a('IfcRelAggregates'):
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results.append(get_containing_spatial_elements(rel.RelatingObject))
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elif element.is_a('IfcElement'):
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for rel in element.ContainedInStructure:
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if rel.is_a('ifcRelContainedInSpatialStructure'):
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results.append(get_containing_spatial_elements(rel.RelatingStructure))
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return results
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@step('There is a datum element {guid} as an {ifc_class}')
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def step_impl(context, guid, ifc_class):
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element = IfcFile.by_guid(guid)
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assert_type(element, ifc_class)
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@step('The element {guid} has a global easting, northing, and elevation of {easting}, {northing}, and {elevation} respectively')
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def step_impl(context, guid, easting, northing, elevation):
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if IfcFile.get().schema == 'IFC2X3':
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if element.is_a('IfcSite'):
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site = element
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else:
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potential_sites = [s for s in get_containing_spatial_elements(element) if s.is_a('IfcSite')]
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if potential_sites:
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site = potential_sites[0]
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else:
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assert False, 'The datum element does not belong to a geolocated site'
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map_conversion = assert_pset(site, 'EPset_MapConversion')
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else:
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map_conversion = IfcFile.get().by_type('IfcMapConversion')
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if map_conversion:
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map_conversion = map_conversion[0].get_info()
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else:
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assert False, 'No map conversion was found in the file'
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element = IfcFile.by_guid(guid)
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if not element.ObjectPlacement:
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assert False, 'The element does not have an object placement: {}'.format(element)
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m = get_local_placement(element.ObjectPlacement)
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e, n, h = ifcopenshell.util.geolocation.xyz2enh(
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m[0][3], m[1][3], m[2][3],
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float(map_conversion['Eastings']),
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float(map_conversion['Northings']),
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float(map_conversion['OrthogonalHeight']),
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float(map_conversion['XAxisAbscissa']),
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float(map_conversion['XAxisOrdinate']),
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float(map_conversion['Scale']),
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)
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element_x = round(e, get_decimal_points(easting))
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element_y = round(n, get_decimal_points(northing))
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element_z = round(h, get_decimal_points(elevation))
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expected_placement = (assert_number(easting), assert_number(northing), assert_number(elevation))
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if (element_x, element_y, element_z) != expected_placement:
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assert False, 'The element {} is meant to have a location of {} but instead we found {}'.format(
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element, expected_placement, (element_x, element_y, element_z))
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@step('The element {guid} has a local X, Y, and Z coordinate of {x}, {y}, and {z} respectively')
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def step_impl(context, guid, x, y, z):
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element = IfcFile.by_guid(guid)
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if not element.ObjectPlacement:
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assert False, 'The element does not have an object placement: {}'.format(element)
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m = get_local_placement(element.ObjectPlacement)
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element_x = round(m[0][3], get_decimal_points(x))
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element_y = round(m[1][3], get_decimal_points(y))
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element_z = round(m[2][3], get_decimal_points(z))
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expected_placement = (assert_number(x), assert_number(y), assert_number(z))
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if (element_x, element_y, element_z) != expected_placement:
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assert False, 'The element {} is meant to have a location of {} but instead we found {}'.format(
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element, expected_placement, (element_x, element_y, element_z))
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