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Fix #3682. You can now tag setout points with dynamic xyz / enh values.

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This commit is contained in:
Dion Moult
2023-09-07 13:47:54 +10:00
parent e8b52d3d93
commit 62b2b9983f
6 changed files with 209 additions and 137 deletions
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src/ifcopenshell-python/ifcopenshell/util/geolocation.py
+28
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@@ -75,6 +75,34 @@ def xyz2enh_ifc4x3(
return (eastings, northings, height)
def auto_xyz2enh(ifc_file, x, y, z):
try:
conversion = ifc_file.by_type("IfcMapConversion")
except:
return (x, y, z)
if not conversion:
return (x, y, z)
conversion = conversion[0]
e = conversion.Eastings or 0
n = conversion.Northings or 0
h = conversion.OrthogonalHeight or 0
xaa = conversion.XAxisAbscissa or 0
xao = conversion.XAxisOrdinate or 0
scale = conversion.Scale or 0
map_unit = conversion.TargetCRS.MapUnit
if map_unit:
# Warning! This definition has changed in IFC4X3 such that map_unit no
# longer affects unit conversion, only the Scale attribute affects unit
# conversion. TODO: consolidate once IFC4X3 confirmed.
project_unit = ifcopenshell.util.unit.get_project_unit(ifc_file, "LENGTHUNIT")
map_prefix = getattr(map_unit, "Prefix", None)
project_prefix = getattr(project_unit, "Prefix", None)
e = ifcopenshell.util.unit.convert(e, map_prefix, map_unit.Name, project_prefix, project_unit.Name)
n = ifcopenshell.util.unit.convert(n, map_prefix, map_unit.Name, project_prefix, project_unit.Name)
h = ifcopenshell.util.unit.convert(h, map_prefix, map_unit.Name, project_prefix, project_unit.Name)
return xyz2enh(x, y, z, e, n, h, xaa, xao, scale)
def auto_z2e(ifc_file, z):
"""Convert a Z coordinate to an elevation using model georeferencing data