Allow export of type relations in IFCCSV

This commit is contained in:
Dion Moult
2020-08-08 17:58:45 +10:00
parent 11a66ee181
commit 3292b98080
5 changed files with 32 additions and 200 deletions
@@ -2,6 +2,7 @@ import ifcopenshell
import ifcopenshell.geom
import ifcopenshell.util.geolocation
import ifcopenshell.util.selector
import ifcopenshell.util.element
import bpy
import bmesh
import os
@@ -1272,19 +1273,10 @@ class IfcImporter():
new_prop.string_value = str(value)
def add_defines_by_type_relation(self, element, obj):
related_type = self.get_type(element)
related_type = ifcopenshell.util.element.get_type(element)
if related_type:
obj.BIMObjectProperties.relating_type = self.type_products[related_type.GlobalId]
# TODO: migrate into util function
def get_type(self, element):
if hasattr(element, 'IsTypedBy') and element.IsTypedBy:
return element.IsTypedBy[0].RelatingType
elif hasattr(element, 'IsDefinedBy') and element.IsDefinedBy: # IFC2X3
for relationship in element.IsDefinedBy:
if relationship.is_a('IfcRelDefinesByType'):
return relationship.RelatingType
def add_opening_relation(self, element, obj):
if not element.is_a('IfcOpeningElement'):
return
@@ -5,6 +5,7 @@ import json
import logging
import webbrowser
import ifcopenshell
import ifcopenshell.util.selector
import tempfile
from . import export_ifc
from . import import_ifc
@@ -2896,14 +2897,14 @@ class ExportIfcCsv(bpy.types.Operator):
def execute(self, context):
import ifccsv
self.filepath = bpy.path.ensure_ext(self.filepath, '.csv')
ifc_selector_parser = ifccsv.IfcSelectorParser()
ifc_selector_parser.ifc = bpy.context.scene.BIMProperties.ifc_file
ifc_selector_parser.query = bpy.context.scene.BIMProperties.ifc_selector
ifc_selector_parser.parse()
ifc_file = ifcopenshell.open(bpy.context.scene.BIMProperties.ifc_file)
selector = ifcopenshell.util.selector.Selector()
results = selector.parse(ifc_file, bpy.context.scene.BIMProperties.ifc_selector)
ifc_csv = ifccsv.IfcCsv()
ifc_csv.output = self.filepath
ifc_csv.attributes = [a.name for a in bpy.context.scene.BIMProperties.csv_attributes]
ifc_csv.export(ifc_selector_parser.file, ifc_selector_parser.results)
ifc_csv.selector = selector
ifc_csv.export(ifc_file, results)
return {'FINISHED'}
+8 -185
View File
@@ -2,190 +2,12 @@
# This can be packaged with `pyinstaller --onefile --clean --icon=icon.ico ifccsv.py`
import ifcopenshell
import ifcopenshell.util.selector
import csv
import lark
import argparse
class IfcSelectorParser():
def __init__(self):
self.ifc = ''
self.file = None
self.query = ''
self.results = []
def parse(self):
self.file = ifcopenshell.open(self.ifc)
l = lark.Lark('''start: query (lfunction query)*
query: selector | group
group: "(" query (lfunction query)* ")"
selector: (inverse_relationship)? guid_selector | (inverse_relationship)? class_selector
guid_selector: "#" /[0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_$]{22}/
class_selector: "." WORD filter ?
filter: "[" filter_key (comparison filter_value)? "]"
filter_key: WORD | pset_or_qto
filter_value: ESCAPED_STRING
pset_or_qto: /[A-Za-z0-9_]+/ "." /[A-Za-z0-9_]+/
lfunction: and | or
inverse_relationship: types | contains_elements
types: "*"
contains_elements: "@"
and: "&"
or: "|"
comparison: contains | morethanequalto | lessthanequalto | equal | morethan | lessthan
contains: "*="
morethanequalto: ">="
lessthanequalto: "<"
equal: "="
morethan: ">"
lessthan: "<"
// Embed common.lark for packaging
DIGIT: "0".."9"
HEXDIGIT: "a".."f"|"A".."F"|DIGIT
INT: DIGIT+
SIGNED_INT: ["+"|"-"] INT
DECIMAL: INT "." INT? | "." INT
_EXP: ("e"|"E") SIGNED_INT
FLOAT: INT _EXP | DECIMAL _EXP?
SIGNED_FLOAT: ["+"|"-"] FLOAT
NUMBER: FLOAT | INT
SIGNED_NUMBER: ["+"|"-"] NUMBER
_STRING_INNER: /.*?/
_STRING_ESC_INNER: _STRING_INNER /(?<!\\\\)(\\\\\\\\)*?/
ESCAPED_STRING : "\\"" _STRING_ESC_INNER "\\""
LCASE_LETTER: "a".."z"
UCASE_LETTER: "A".."Z"
LETTER: UCASE_LETTER | LCASE_LETTER
WORD: LETTER+
CNAME: ("_"|LETTER) ("_"|LETTER|DIGIT)*
WS_INLINE: (" "|/\\t/)+
WS: /[ \\t\\f\\r\\n]/+
CR : /\\r/
LF : /\\n/
NEWLINE: (CR? LF)+
%ignore WS // Disregard spaces in text
''')
start = l.parse(self.query)
self.results = self.get_group(start)
def get_group(self, group):
lfunction = None
for child in group.children:
if child.data == 'query':
new_results = self.get_query(child)
if not lfunction:
results = new_results
elif lfunction == 'or':
results.extend(new_results)
elif lfunction == 'and':
results = list(set(results).intersection(new_results))
results = list(set(results))
elif child.data == 'lfunction':
lfunction = child.children[0].data
return results
def get_query(self, query):
for child in query.children:
if child.data == 'selector':
return self.get_selector(child)
elif child.data == 'group':
return self.get_group(child)
def get_selector(self, selector):
if len(selector.children) == 1:
inverse_relationship = None
class_or_guid_selector = selector.children[0]
else:
inverse_relationship = selector.children[0]
class_or_guid_selector = selector.children[1]
if class_or_guid_selector.data == 'class_selector':
results = self.get_class_selector(class_or_guid_selector)
elif class_or_guid_selector.data == 'guid_selector':
results = self.get_guid_selector(class_or_guid_selector)
if not inverse_relationship:
return results
return self.parse_inverse_relationship(results, inverse_relationship.children[0].data)
def parse_inverse_relationship(self, elements, inverse_relationship):
results = []
for element in elements:
if inverse_relationship == 'types':
if hasattr(element, 'Types') and element.Types:
results.extend(element.Types[0].RelatedObjects)
elif hasattr(element, 'ObjectTypeOf') and element.ObjectTypeOf:
results.extend(element.ObjectTypeOf[0].RelatedObjects)
elif inverse_relationship == 'contains_elements' \
and hasattr(element, 'ContainsElements'):
for relationship in element.ContainsElements:
results.extend(relationship.RelatedElements)
return results
def get_class_selector(self, class_selector):
elements = self.file.by_type(class_selector.children[0])
if len(class_selector.children) > 1 \
and class_selector.children[1].data == 'filter':
return self.filter_elements(elements, class_selector.children[1])
return elements
def filter_elements(self, elements, filter_rule):
results = []
key = filter_rule.children[0].children[0]
if not isinstance(key, str):
key = key.children[0] + '.' + key.children[1]
comparison = value = None
if len(filter_rule.children) > 1:
comparison = filter_rule.children[1].children[0].data
value = filter_rule.children[2].children[0][1:-1]
for element in elements:
element_value = IfcAttributeExtractor.get_element_key(element, key)
if not element_value:
continue
if not comparison \
or self.filter_element(element, element_value, comparison, value):
results.append(element)
return results
def filter_element(self, element, element_value, comparison, value):
if comparison == 'equal':
return str(element_value) == value
elif comparison == 'contains':
return value in str(element_value)
elif comparison == 'morethan':
return element_value > float(value)
elif comparison == 'lessthan':
return element_value < float(value)
elif comparison == 'morethanequalto':
return element_value >= float(value)
elif comparison == 'lessthanequalto':
return element_value <= float(value)
return False
def get_guid_selector(self, guid_selector):
return [self.file.by_id(guid_selector.children[0])]
class IfcAttributeExtractor():
@staticmethod
def get_element_key(element, key):
if key == 'IfcClass':
return element.is_a()
elif hasattr(element, key):
return getattr(element, key)
elif '.' not in key:
return None
pset_name, prop = key.split('.', 1)
pset = IfcAttributeExtractor.get_element_pset(element, pset_name)
if pset:
return IfcAttributeExtractor.get_pset_property(pset, prop)
qto = IfcAttributeExtractor.get_element_qto(element, pset_name)
if qto:
return IfcAttributeExtractor.get_qto_property(qto, prop)
return None
@staticmethod
def set_element_key(element, key, value):
if hasattr(element, key):
@@ -268,6 +90,7 @@ class IfcCsv():
self.results = []
self.attributes = []
self.output = ''
self.selector = None
def export(self, ifc_file, elements):
self.ifc_file = ifc_file
@@ -284,7 +107,7 @@ class IfcCsv():
del(self.attributes[index])
for attribute in self.attributes:
result.append(IfcAttributeExtractor.get_element_key(element, attribute))
result.append(self.selector.get_element_value(element, attribute))
self.results.append(result)
with open(self.output, 'w', newline='', encoding='utf-8') as f:
@@ -363,14 +186,14 @@ if __name__ == '__main__':
args = parser.parse_args()
if args.export:
ifc_selector_parser = IfcSelectorParser()
ifc_selector_parser.ifc = args.ifc
ifc_selector_parser.query = args.query
ifc_selector_parser.parse()
ifc_file = ifcopenshell.open(args.ifc)
selector = ifcopenshell.util.selector.Selector()
results = selector.parse(ifc_file, args.query)
ifc_csv = IfcCsv()
ifc_csv.output = args.csv
ifc_csv.attributes = args.arguments if args.arguments else []
ifc_csv.export(ifc_selector_parser.file, ifc_selector_parser.results)
ifc_csv.selector = selector
ifc_csv.export(ifc_file, results)
elif getattr(args, 'import'):
ifc_csv = IfcCsv()
ifc_csv.output = args.csv
@@ -53,6 +53,15 @@ def get_properties(properties):
return results
def get_type(element):
if hasattr(element, 'IsTypedBy') and element.IsTypedBy:
return element.IsTypedBy[0].RelatingType
elif hasattr(element, 'IsDefinedBy') and element.IsDefinedBy: # IFC2X3
for relationship in element.IsDefinedBy:
if relationship.is_a('IfcRelDefinesByType'):
return relationship.RelatingType
def replace_attribute(element, old, new):
for i, attribute in enumerate(element):
if attribute == old:
@@ -210,6 +210,13 @@ class Selector():
return results
def get_element_value(self, element, key):
if '.' in key \
and key.split('.')[0] == 'type':
try:
element = ifcopenshell.util.element.get_type(element)
except:
return
key = '.'.join(key.split('.')[1:])
info = element.get_info()
if key in info:
return info[key]