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application.py
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application.py
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from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import os
import sys
import time
import operator
import functools
import multiprocessing
import logging
from collections import defaultdict, Iterable, OrderedDict
# check pyqt version and import pyqt library
QString = str
os.environ['QT_API'] = 'pyqt5'
try:
from pyqode.qt import QtCore
except BaseException:
pass
from PyQt5 import QtCore, QtGui, QtWidgets
# add python-occ library
import OCC.Core.AIS
try:
from OCC.Display.pyqt5Display import qtViewer3d
except BaseException:
import OCC.Display
try:
import OCC.Display.backend
except BaseException:
pass
try:
OCC.Display.backend.get_backend("qt-pyqt5")
except BaseException:
OCC.Display.backend.load_backend("qt-pyqt5")
from OCC.Display.qtDisplay import qtViewer3d
# add ifcopenshell library
import ifcopenshell
from ifcopenshell.geom.main import settings, iterator
from ifcopenshell.geom.occ_utils import display_shape,set_shape_transparency
from ifcopenshell import open as open_ifc_file
if ifcopenshell.version < "0.6":
# not yet ported
from .. import get_supertype
# add the functions of BIM calculation algorithm
from .functions import *
class geometry_creation_signals(QtCore.QObject):
completed = QtCore.pyqtSignal('PyQt_PyObject') #name of the signal completed
progress = QtCore.pyqtSignal('PyQt_PyObject')
class geometry_creation_thread(QtCore.QThread):
def __init__(self, signals, settings, f):
QtCore.QThread.__init__(self)
self.signals = signals
self.settings = settings
self.f = f
def run(self):
t0 = time.time()
# detect concurrency from hardware, we need to have
# at least two threads because otherwise the interface
# is different
it = iterator(self.settings, self.f, max(2, multiprocessing.cpu_count()))
if not it.initialize():
self.signals.completed.emit([])
return
def _():
old_progress = -1
while True:
shape = it.get()
if shape:
yield shape
if not it.next():
break
self.signals.completed.emit((it, self.f, list(_())))
class configuration(object):
def __init__(self):
try:
import ConfigParser
Cfg = ConfigParser.RawConfigParser
except BaseException:
import configparser
def Cfg():
return configparser.ConfigParser(interpolation=None)
conf_file = os.path.expanduser(os.path.join("~", ".ifcopenshell", "app", "snippets.conf"))
if conf_file.startswith("~"):
conf_file = None
return
self.config_encode = lambda s: s.replace("\\", "\\\\").replace("\n", "\n|")
self.config_decode = lambda s: s.replace("\n|", "\n").replace("\\\\", "\\")
if not os.path.exists(os.path.dirname(conf_file)):
os.makedirs(os.path.dirname(conf_file))
if not os.path.exists(conf_file):
config = Cfg()
config.add_section("snippets")
config.set("snippets", "print all wall ids", self.config_encode("""
###########################################################################
# A simple script that iterates over all walls in the current model #
# and prints their Globally unique IDs (GUIDS) to the console window #
###########################################################################
for wall in model.by_type("IfcWall"):
print ("wall with global id: "+str(wall.GlobalId))
""".lstrip()))
config.set("snippets", "print properties of current selection", self.config_encode("""
###########################################################################
# A simple script that iterates over all IfcPropertySets of the currently #
# selected object and prints them to the console #
###########################################################################
# check if something is selected
if selection:
#get the IfcProduct that is stored in the global variable 'selection'
obj = selection
for relDefinesByProperties in obj.IsDefinedBy:
print("[{0}]".format(relDefinesByProperties.RelatingPropertyDefinition.Name))
for prop in relDefinesByProperties.RelatingPropertyDefinition.HasProperties:
print ("{:<20} :{}".format(prop.Name,prop.NominalValue.wrappedValue))
print ("\\n")
""".lstrip()))
with open(conf_file, 'w') as configfile:
config.write(configfile)
self.config = Cfg()
self.config.read(conf_file)
def options(self, s):
return OrderedDict([(k, self.config_decode(self.config.get(s, k))) for k in self.config.options(s)])
class application(QtWidgets.QApplication):
"""A pythonOCC, PyQt based IfcOpenShell application
with two tree views and a graphical 3d view"""
class abstract_treeview(QtWidgets.QTreeWidget):
"""Base class for the two treeview controls"""
instanceSelected = QtCore.pyqtSignal([object])
instanceVisibilityChanged = QtCore.pyqtSignal([object, int])
instanceDisplayModeChanged = QtCore.pyqtSignal([object, int])
def __init__(self):
QtWidgets.QTreeView.__init__(self)
self.setColumnCount(len(self.ATTRIBUTES))
self.setHeaderLabels(self.ATTRIBUTES)
self.children = defaultdict(list)
def get_children(self, inst):
c = [inst]
i = 0
while i < len(c):
c.extend(self.children[c[i]])
i += 1
return c
def contextMenuEvent(self, event):
menu = QtWidgets.QMenu(self)
visibility = [menu.addAction("Show"), menu.addAction("Hide")]
displaymode = [menu.addAction("Solid"), menu.addAction("Wireframe")]
action = menu.exec_(self.mapToGlobal(event.pos()))
index = self.selectionModel().currentIndex()
inst = index.data(QtCore.Qt.UserRole)
if hasattr(inst, 'toPyObject'):
inst = inst
if action in visibility:
self.instanceVisibilityChanged.emit(inst, visibility.index(action))
elif action in displaymode:
self.instanceDisplayModeChanged.emit(inst, displaymode.index(action))
def clicked_(self, index):
inst = index.data(QtCore.Qt.UserRole)
if hasattr(inst, 'toPyObject'):
inst = inst
if inst:
self.instanceSelected.emit(inst)
def select(self, product):
print("select in the abstract_treeview called")
itm = self.product_to_item.get(product)
if itm is None:
return
self.selectionModel().setCurrentIndex(itm,
QtCore.QItemSelectionModel.SelectCurrent | QtCore.QItemSelectionModel.Rows)
class decomposition_treeview(abstract_treeview):
"""Treeview with typical IFC decomposition relationships"""
ATTRIBUTES = ['Entity', 'GlobalId', 'Name']
def parent_overload(self, instance):
if instance.is_a("IfcOpeningElement"):
return instance.VoidsElements[0].RelatingBuildingElement
if instance.is_a("IfcElement"):
fills = instance.FillsVoids
if len(fills):
return fills[0].RelatingOpeningElement
containments = instance.ContainedInStructure
if len(containments):
return containments[0].RelatingStructure
if instance.is_a("IfcObjectDefinition"):
decompositions = instance.Decomposes
if len(decompositions):
return decompositions[0].RelatingObject
def load_file(self, f, **kwargs):
products = list(f.by_type("IfcProduct")) + list(f.by_type("IfcProject"))
parents = list(map(self.parent_overload, products))
items = {}
skipped = 0
ATTRS = self.ATTRIBUTES
while len(items) + skipped < len(products):
for product, parent in zip(products, parents):
if parent is None and not product.is_a("IfcProject"):
skipped += 1
continue
if (parent is None or parent in items) and product not in items:
sl = []
for attr in ATTRS:
if attr == 'Entity':
sl.append(product.is_a())
else:
sl.append(getattr(product, attr) or '')
itm = items[product] = QtWidgets.QTreeWidgetItem(items.get(parent, self), sl)
itm.setData(0, QtCore.Qt.UserRole, product)
self.children[parent].append(product)
self.product_to_item = dict(zip(items.keys(), map(self.indexFromItem, items.values())))
self.clicked.connect(self.clicked_)
self.expandAll()
class type_treeview(abstract_treeview):
"""Treeview with typical IFC decomposition relationships"""
ATTRIBUTES = ['Name']
def load_file(self, f, **kwargs):
products = list(f.by_type("IfcProduct"))
types = set(map(lambda i: i.is_a(), products))
items = {}
for t in types:
def add(t):
s = get_supertype(t)
if s:
add(s)
s2, t2 = map(QString, (s, t))
if t2 not in items:
itm = items[t2] = QtWidgets.QTreeWidgetItem(items.get(s2, self), [t2])
itm.setData(0, QtCore.Qt.UserRole, t2)
self.children[s2].append(t2)
if ifcopenshell.version < "0.6":
add(t)
for p in products:
t = QString(p.is_a())
itm = items[p] = QtWidgets.QTreeWidgetItem(items.get(t, self), [p.Name or '<no name>'])
itm.setData(0, QtCore.Qt.UserRole, t)
self.children[t].append(p)
self.product_to_item = dict(zip(items.keys(), map(self.indexFromItem, items.values())))
self.clicked.connect(self.clicked_)
self.expandAll()
class property_table(QtWidgets.QWidget):
def __init__(self):
QtWidgets.QWidget.__init__(self)
self.layout = QtWidgets.QVBoxLayout(self)
self.setLayout(self.layout)
self.scroll = QtWidgets.QScrollArea(self)
self.layout.addWidget(self.scroll)
self.scroll.setWidgetResizable(True)
self.scrollContent = QtWidgets.QWidget(self.scroll)
self.scrollLayout = QtWidgets.QVBoxLayout(self.scrollContent)
self.scrollContent.setLayout(self.scrollLayout)
self.scroll.setWidget(self.scrollContent)
self.prop_dict = {}
# triggered by selection event in either component of parent
def select(self, product):
print("select in the property_table called")
# Clear the old contents if any
while self.scrollLayout.count():
child = self.scrollLayout.takeAt(0)
if child is not None:
if child.widget() is not None:
child.widget().deleteLater()
self.scroll = QtWidgets.QScrollArea()
self.scroll.setWidgetResizable(True)
prop_sets = self.prop_dict.get(str(product))
if prop_sets is not None:
for k, v in prop_sets:
group_box = QtWidgets.QGroupBox()
group_box.setTitle(k)
group_layout = QtWidgets.QVBoxLayout()
group_box.setLayout(group_layout)
for name, value in v.items():
prop_name = str(name)
value_str = value
if hasattr(value_str, "wrappedValue"):
value_str = value_str.wrappedValue
#if isinstance(value_str, unicode):
if isinstance(value_str, str):
value_str = value_str.encode('utf-8')
else:
value_str = str(value_str)
if hasattr(value, "is_a"):
type_str = " <i>(%s)</i>" % value.is_a()
else:
type_str = ""
label = QtWidgets.QLabel("<b>%s</b>: %s%s" % (prop_name, value_str, type_str))
group_layout.addWidget(label)
group_layout.addStretch()
self.scrollLayout.addWidget(group_box)
self.scrollLayout.addStretch()
else:
label = QtWidgets.QLabel("No IfcPropertySets asscociated with selected entity instance")
self.scrollLayout.addWidget(label)
def load_file(self, f, **kwargs):
for p in f.by_type("IfcProduct"):
propsets = []
def process_pset(prop_def):
if prop_def is not None:
prop_set_name = prop_def.Name
props = {}
if prop_def.is_a("IfcElementQuantity"):
for q in prop_def.Quantities:
if q.is_a("IfcPhysicalSimpleQuantity"):
props[q.Name] = q[3]
elif prop_def.is_a("IfcPropertySet"):
for prop in prop_def.HasProperties:
if prop.is_a("IfcPropertySingleValue"):
props[prop.Name] = prop.NominalValue
else:
# Entity introduced in IFC4
# prop_def.is_a("IfcPreDefinedPropertySet"):
for prop in range(4, len(prop_def)):
props[prop_def.attribute_name(prop)] = prop_def[prop]
return prop_set_name, props
try:
for is_def_by in p.IsDefinedBy:
if is_def_by.is_a("IfcRelDefinesByProperties"):
propsets.append(process_pset(is_def_by.RelatingPropertyDefinition))
elif is_def_by.is_a("IfcRelDefinesByType"):
type_psets = is_def_by.RelatingType.HasPropertySets
if type_psets is None:
continue
for propset in type_psets:
propsets.append(process_pset(propset))
except Exception as e:
import traceback
print("failed to load properties: {}".format(e))
traceback.print_exc()
if len(propsets):
self.prop_dict[str(p)] = propsets
print("property set dictionary has {} entries".format(len(self.prop_dict)))
class viewer(qtViewer3d):
instanceSelected = QtCore.pyqtSignal([object])
@staticmethod
def ais_to_key(ais_handle):
def yield_shapes():
ais = ais_handle.GetObject()
if hasattr(ais, 'Shape'):
yield ais.Shape()
return
shp = OCC.Core.AIS.Handle_AIS_Shape.DownCast(ais_handle)
if not shp.IsNull():
yield shp.Shape()
return
mult = ais_handle
if mult.IsNull():
shp = OCC.Core.AIS.Handle_AIS_Shape.DownCast(ais_handle)
if not shp.IsNull():
yield shp
else:
li = mult.GetObject().ConnectedTo()
for i in range(li.Length()):
shp = OCC.Core.AIS.Handle_AIS_Shape.DownCast(li.Value(i + 1))
if not shp.IsNull():
yield shp
return tuple(shp.HashCode(1 << 24) for shp in yield_shapes())
def __init__(self, widget):
qtViewer3d.__init__(self, widget)
self.ais_to_product = {}
self.product_to_ais = {}
self.counter = 0
self.window = widget
self.thread = None
# ------------------------------------- Teng --------------------------------------------
self.floor_elements_lst = []
self.floor_compound_shapes_lst = []
def initialize(self):
self.InitDriver()
#self._display.Select = self.HandleSelection
def finished(self, file_shapes):
it, f, shapes = file_shapes
v = self._display
t = {0: time.time()}
def update(dt=None):
t1 = time.time()
if dt is None or t1 - t[0] > dt:
v.FitAll()
v.Repaint()
t[0] = t1
for shape in shapes:
ais = display_shape(shape, viewer_handle=v)
product = f[shape.data.id]
# try:
# ais.SetSelectionPriority(self.counter)
# except:
# ais.GetObject().SetSelectionPriority(self.counter)
self.ais_to_product[self.counter] = product
self.product_to_ais[product] = ais
self.counter += 1
QtWidgets.QApplication.processEvents()
if product.is_a() in {'IfcSpace', 'IfcOpeningElement'}:
v.Context.Erase(ais, True)
#update(1.)
update()
self.thread = None
def load_file(self, floor_name_lst, floor_elements_lst): # f is, ifc_file = ifcopenshell.open()
time_a = time.time()
settings = ifcopenshell.geom.settings()
settings.set(settings.USE_PYTHON_OPENCASCADE, True)
for i in range(len(floor_elements_lst)):
# -------------- create shape from BIM----------------:
floor_ifc = floor_elements_lst[i]
shapes = []
if isinstance(floor_ifc, list):
for element in floor_ifc:
try:
if element.Representation:
shape = ifcopenshell.geom.create_shape(settings, element).geometry
shapes.append(shape)
except:
print("Create shape failed, ", element.is_a(),',', element.Name)
# ------------------- create shape from BIM done -----------------------------
shapes_compound, if_all_compound = list_of_shapes_to_compound(shapes)
self.floor_compound_shapes_lst.append(shapes_compound)
v = self._display
if i != (len(floor_elements_lst)-1):
v.DisplayShape(shapes_compound, color="Black", transparency=0.9, update=False)
print("loading floor, index ",i, " floor name: ",floor_name_lst[i] )
else:
v.DisplayShape(shapes_compound, color="Black", transparency=0.9, update=True)
print("loading floor, index ",i, " floor name: ",floor_name_lst[i] )
print("load and create shape done, time: ", time.time()-time_a, "start,",time.time(),"end,", time_a)
def select(self, product):
print("select in viewer called")
ais = self.product_to_ais.get(product)
if ais is None:
return
v = self._display.Context
v.ClearSelected(False)
v.SetSelected(ais, True)
def toggle(self, product_or_products, fn):
if not isinstance(product_or_products, Iterable):
product_or_products = [product_or_products]
aiss = list(filter(None, map(self.product_to_ais.get, product_or_products)))
last = len(aiss) - 1
for i, ais in enumerate(aiss):
fn(ais, i == last)
def toggle_visibility(self, product_or_products, flag):
v = self._display.Context
if flag:
def visibility(ais, last):
v.Erase(ais, last)
else:
def visibility(ais, last):
v.Display(ais, last)
self.toggle(product_or_products, visibility)
def toggle_wireframe(self, product_or_products, flag):
v = self._display.Context
if flag:
def wireframe(ais, last):
if v.IsDisplayed(ais):
v.SetDisplayMode(ais, 0, last)
else:
def wireframe(ais, last):
if v.IsDisplayed(ais):
v.SetDisplayMode(ais, 1, last)
self.toggle(product_or_products, wireframe)
def HandleSelection(self, X, Y):
print("HandleSelection called in viewer")
v = self._display.Context
v.Select(True)
v.InitSelected()
if v.MoreSelected():
ais = v.SelectedInteractive()
inst = self.ais_to_product[ais.GetOject().SelectionPriority()]
self.instanceSelected.emit(inst)
class window(QtWidgets.QMainWindow):
TITLE = "IfcOpenShell IFC viewer"
window_closed = QtCore.pyqtSignal([])
def __init__(self):
QtWidgets.QMainWindow.__init__(self)
self.setWindowTitle(self.TITLE)
self.menu = self.menuBar()
self.menus = {}
def closeEvent(self, *args):
self.window_closed.emit()
def add_menu_item(self, menu, label, callback, icon=None, shortcut=None):
m = self.menus.get(menu)
if m is None:
m = self.menu.addMenu(menu)
self.menus[menu] = m
if icon:
a = QtWidgets.QAction(QtGui.QIcon(icon), label, self)
else:
a = QtWidgets.QAction(label, self)
if shortcut:
a.setShortcut(shortcut)
a.triggered.connect(callback)
m.addAction(a)
def makeSelectionHandler(self, component):
print("makeSelectionHandler")
def handler(inst):
for c in self.components:
if c != component:
c.select(inst)
return handler
def __init__(self, settings=None):
QtWidgets.QApplication.__init__(self, sys.argv)
self.window = application.window()
self.tree = application.decomposition_treeview()
self.tree2 = application.type_treeview()
self.propview = self.property_table()
self.canvas = application.viewer(self.window)
self.tabs = QtWidgets.QTabWidget()
self.window.resize(800, 600)
splitter = QtWidgets.QSplitter(QtCore.Qt.Horizontal)
splitter.addWidget(self.tabs)
self.tabs.addTab(self.tree, 'Decomposition')
self.tabs.addTab(self.tree2, 'Types')
self.tabs.addTab(self.propview, "Properties")
splitter2 = QtWidgets.QSplitter(QtCore.Qt.Vertical)
splitter2.addWidget(self.canvas)
splitter.addWidget(splitter2)
splitter.setSizes([200, 600])
self.window.setCentralWidget(splitter)
self.canvas.initialize()
self.components = [self.tree, self.tree2, self.propview]
self.files = {}
self.window.add_menu_item('File', '&Open', self.browse, shortcut='CTRL+O')
self.window.add_menu_item('File', '&Close', self.clear, shortcut='CTRL+W')
self.window.add_menu_item('File', '&Exit', self.window.close, shortcut='ALT+F4')
# ---------------------------default variables for BIM calculation algorithm ----------------------------------#
# DBSCAN clustering
self.s = 0.2
self.dbscan =2
# k-nearest neighbor
self.k = 16
# default ground floor number
self.floornum = int(0)
self.current_ifc_file = None
self.floor_elements_lst = []
self.floor_name_lst = []
self.base_polygon = None
self.base_overhang_obb_poly = None
self.base_obb_pt_lst = []
self.base_overhang_points =None
self.base_floor_num = 1
self.overhang_left = True
self.storeyElevation_lst=[]
# Georeference parameters
self.addGeoreference = False
self.georeference_x = 0.0
self.georeference_y = 0.0
self.georeference_z = 0.0
# --------------------------- funtion buttons on the menu ----------------------------------#
# View
self.window.add_menu_item('View', '&ClearViewer', self.clearViewer)
self.window.add_menu_item('View', '&Showfloor', self.showfloor)
self.window.add_menu_item('View', '&Show all floors', self.showallfloor)
# Preprocess
self.window.add_menu_item('Preprocess','&Set base floor number',self.setBaseFloornum)
self.window.add_menu_item('Preprocess', '&Add Georeference Point', self.addGeoreferencePoint)
self.window.add_menu_item('Preprocess', '&Set Overhang Direction', self.setOverhangdir)
self.window.add_menu_item('Preprocess', '&Set Overlap Parameters', self.setOverlapParameters)
# Overlap
self.window.add_menu_item('Overlap','&Single Floor Overlap',self.OverlapOneFloor)
self.window.add_menu_item('Overlap','&Single Floor Overlap Bounding Box',self.OverlapOneFloorOBB)
self.window.add_menu_item('Overlap','&All Floor Overlap',self.OverlapAll)
self.window.add_menu_item('Overlap','&All Floor Overlap Bounding Box',self.OverlapAllOBB)
# Overhang
self.window.add_menu_item('Overhang','&Single Floor Overhang',self.OverhangOneFloor)
self.window.add_menu_item('Overhang', '&All Floor Overhang', self.OverhangAll_new)
# Height
self.window.add_menu_item('Height','&Height',self.GetHeight)
self.window.add_menu_item('Height','&GetBaseHeight',self.GetBaseHeight)
# wkt footprint
self.window.add_menu_item('WKT', '&Write Floor Footprint to WKT', self.footprintWKT)
# Parking
self.window.add_menu_item('Parking', '&Parking Units Calculation', self.parkingCalcualate, shortcut='CTRL+F')
self.tree.instanceSelected.connect(self.makeSelectionHandler(self.tree))
self.tree2.instanceSelected.connect(self.makeSelectionHandler(self.tree2))
self.canvas.instanceSelected.connect(self.makeSelectionHandler(self.canvas))
for t in [self.tree, self.tree2]:
t.instanceVisibilityChanged.connect(functools.partial(self.change_visibility, t))
t.instanceDisplayModeChanged.connect(functools.partial(self.change_displaymode, t))
self.settings = settings
def change_visibility(self, tree, inst, flag):
insts = tree.get_children(inst)
self.canvas.toggle_visibility(insts, flag)
def change_displaymode(self, tree, inst, flag):
insts = tree.get_children(inst)
self.canvas.toggle_wireframe(insts, flag)
def start(self):
self.window.show()
sys.exit(self.exec_())
def browse(self):
filename = QtWidgets.QFileDialog.getOpenFileName(self.window, 'Open file', ".",
"Industry Foundation Classes (*.ifc)")[0]
if filename:
self.load(filename)
def clear(self):
self.canvas._display.Context.RemoveAll(True)
self.tree.clear()
self.files.clear()
def load(self, fn):
if fn in self.files:
return
f = open_ifc_file(str(fn))
#Run the floor segementation when loading
self.floor_elements_lst, self.floor_name_lst = GetElementsByStorey(f)
self.files[fn] = f
for c in self.components:
c.load_file(f, setting=self.settings)
storeys = f.by_type("IfcBuildingStorey")
for st in storeys:
self.storeyElevation_lst.append(st.Elevation/1000.0) # convert units from mm to meter
self.canvas.load_file(self.floor_name_lst,self.floor_elements_lst)
if not os.path.exists('./result'):
os.makedirs('./result/')
def showShapes(self,shapes):
v = self.canvas._display
for shape in shapes:
ais = display_shape(shape, viewer_handle=v)
v.FitAll()
v.Repaint()
def setBaseFloornum(self):
floor_num, okPressed = QtWidgets.QInputDialog.getInt(self.window, 'Set Base floor number', 'Base Floor Number=')
if okPressed:
# self.canvas._display.Context.RemoveAll(True)
self.base_polygon = None
self.base_floor_num = floor_num
print("Base floor num has been set to, " ,self.base_floor_num)
else:
return
if self.floor_name_lst:
msg = QtWidgets.QMessageBox()
msg.setIcon(QtWidgets.QMessageBox.Information)
msg.setText("Base floor number is has been set to, "+ str(floor_num)+ " floor name: "+self.floor_name_lst[floor_num] )
msg.setWindowTitle("Floor number Error")
msg.setStandardButtons(QtWidgets.QMessageBox.Ok | QtWidgets.QMessageBox.Cancel)
msg.show()
msg.exec_()
def clearViewer(self):
self.canvas._display.Context.EraseAll(True)
def showallfloor(self):
v = self.canvas._display
for i in range(len(self.floor_name_lst)):
v.DisplayShape(self.canvas.floor_compound_shapes_lst[i], color="WHITE", transparency=0.8, update=True)
def GetBaseHeight(self):
if not self.floor_name_lst:
return
floor_num, okPressed = QtWidgets.QInputDialog.getInt(self.window, 'Base Floor number', 'FloorNumber=')
if okPressed:
print("Floor name, ", self.floor_name_lst[floor_num] )
top_height = float("{:.3f}".format(self.storeyElevation_lst[floor_num+1]))
msg = QtWidgets.QMessageBox()
msg.setIcon(QtWidgets.QMessageBox.Information)
msg.setText("Base height is, "+str(top_height)+ " meter\n"+ "Floor name is ,"+self.floor_name_lst[floor_num])
msg.setWindowTitle("Base height")
msg.setStandardButtons(QtWidgets.QMessageBox.Ok | QtWidgets.QMessageBox.Cancel)
msg.show()
msg.exec_()
else:
return
def showfloor(self):
''' display all the element of the input floor in the canvas'''
if not self.floor_name_lst:
return
floor_num, okPressed =QtWidgets.QInputDialog.getInt(self.window,'InputFloorNumber','FloorNumber=')
if okPressed:
#self.canvas._display.Context.RemoveAll(True)
self.floornum = floor_num
else:
return
if floor_num>=0 and floor_num < len(self.floor_elements_lst):
v = self.canvas._display
print("Selected floor number:", floor_num, " floor name: ", self.floor_name_lst[floor_num])
v.DisplayShape(self.canvas.floor_compound_shapes_lst[floor_num], color="WHITE", transparency=0.8, update=True)
else:
print("message")
msg = QtWidgets.QMessageBox()
msg.setIcon(QtWidgets.QMessageBox.Critical)
msg.setText("Floor number is out of range")
msg.setWindowTitle("Floor number Error")
msg.setStandardButtons(QtWidgets.QMessageBox.Ok | QtWidgets.QMessageBox.Cancel)
msg.show()
msg.exec_()
def GetFloorPolygon(self, i, filepath, yamlFilepath):
''' return intersecting surface polygon of floor i, generated from floor cutting '''
floor_name = self.floor_name_lst[i]
print("current floor, ", floor_name,"******************************************************************************")
#display shapes
v = self.canvas._display
# set parameters
s = self.s
dbscan = self.dbscan
k = self.k
calcconvexhull = False
use_obb= False
# cutting_height of each building storey
cutting_height = self.storeyElevation_lst[i] + 1.0
# loading customize parameters from the .yml file
yml_file = open(yamlFilepath, 'r')
yml_data = yaml.load(yml_file, Loader=Loader)
str1 = "f"+str(i)
if str1 in yml_data.keys():
dict2 = yml_data[str1]
if 'cutting_height' in dict2.keys():
value = float(dict2['cutting_height'])
cutting_height = self.storeyElevation_lst[i] + value
if 'k' in dict2.keys():
k = float(dict2['k'])
if 'use_obb' in dict2.keys():
if dict2['use_obb'] == True:
use_obb=True
if 's' in dict2.keys():
s = float(dict2['s'])
if 'dbscan' in dict2.keys():
dbscan = float(dict2['dbscan'])
if 'calcconvexhull' in dict2.keys():
if dict2['calcconvexhull'] == True:
calcconvexhull = True
if use_obb:
print("use_obb, ", use_obb, "floor name,", floor_name, " ----------------------------------------------------------------------")
pts = GetOrientedBoundingBoxShapeCompound(self.canvas.floor_compound_shapes_lst[i], False)
Z_value = []
for pt in pts:
Z_value.append(pt.Z())
z_max = max(Z_value)
z_min = min(Z_value)
z_mid = 0.5 * (z_max + z_min)
pts_low = []
pts_up = []
for pt in pts:
if pt.Z() < z_mid:
pts_low.append(pt)
else:
pts_up.append(pt)
corners_top = pts_up
pyocc_corners_list = []
for pt in corners_top:
pyocc_corners_list.append([float("{:.3f}".format(pt.X() )), float("{:.3f}".format(pt.Y() ))])
points = np.array(pyocc_corners_list)
obb_hull = ConvexHull(points)
result = []
for idx in obb_hull.vertices:
result.append(pyocc_corners_list[idx])
poly_footprint = Polygon(result)
return [poly_footprint]
print("cutting height,", cutting_height)
section_shape = GetSectionShape(cutting_height, self.canvas.floor_compound_shapes_lst[i])
v.DisplayShape(section_shape, color="RED", update=True)
# get the section shape edges
edges = GetShapeEdges(section_shape)
if s !=0:
first_xy = GetEdgeSamplePointsPerDistance(edges, s)
else:
first_xy = GetEdges2DPT(edges)
np_points = np.array(first_xy)
corners = GetNumpyOBB(np_points, calcconvexhull=calcconvexhull, show_plot=False)
OBB_poly = Polygon(corners.tolist())
# create result dir
if not os.path.exists('./result/Overlap/' + floor_name):
os.makedirs('./result/Overlap/' + floor_name)
img_filepath = "./result/Overlap/" + floor_name + "/obbAndPoints.png"
# save result as images in the result folder
SavePloyAndPoints(OBB_poly, np_points, color='b', filepath=img_filepath)
cluster_filepath = "./result/Overlap/" + floor_name + "/clusters.png"
cluster_lst = GetDBSCANClusteringlst(np_points, dbscan, showplot=False, saveplot=cluster_filepath)
line = str()
per_floot_poly = []
poly_count = 0
for np_member_array in cluster_lst:
poly_count += 1
print(len(np_member_array))
print("starting concave hull")
hull = concaveHull(np_member_array, k=k, if_optimal=False)
self.WriteConcave2WKT(hull,floor_name,poly_count)
poly = Polygon(hull)
print("polygon validation is: ", poly.is_valid, poly.area)
poly_filepath = "./result/Overlap/" + floor_name + "/polygon" + str(poly_count) + ".png"
OBB_points = GetNumpyOBB(np_member_array, show_plot=False)
OBB_poly = Polygon(OBB_points.tolist())
print("OBB_poly area,", OBB_poly.area, " name,", floor_name,"---------------------------------------------------------------------")
if not poly.is_valid:
print("Try to repair validation:")
new_poly = poly.buffer(0)
line = line + "Repaired_" + str(new_poly.is_valid) + "_" + str(float("{:.2f}".format(new_poly.area)))
print(new_poly.is_valid, new_poly.area)
un_poly = ops.unary_union(new_poly)
print(type(un_poly), un_poly.is_valid, "Union area,", un_poly.area)
# if the poly is wrong, replace with OBB_poly
if un_poly.area < (0.3 * OBB_poly.area):
un_poly = OBB_poly
per_floot_poly.append(un_poly)
if un_poly.geom_type == 'MultiPolygon':
for geom in un_poly.geoms:
xs, ys = geom.exterior.xy
plt.plot(xs, ys, color="r")
plt.savefig(poly_filepath)
plt.close()
elif un_poly.geom_type == 'Polygon':
SavePloyAndPoints(un_poly, np_member_array, filepath=poly_filepath)
else:
print("Error polygon generation from concave hull failed!")
else:
line = line + "True, Floor Area" + str( float("{:.2f}".format(poly.area)))
print("Polygon True, no need repair")
SavePloyAndPoints(poly, np_member_array, filepath=poly_filepath)
per_floot_poly.append(poly)
return per_floot_poly # [polygon] or [polygons]
def OverlapOneFloor(self):
''' Calculate overlap percentage between input floor and ground floor and save the result in ./result/overlap folder'''
if not self.floor_name_lst:
return
dialog = OneFloorOverlapDialog()
if dialog.exec():
floornum, outputFilepath, yamlFilepath = dialog.getInputs()
floornum = int(floornum)
print(floornum, type(floornum))
else:
return
if floornum or floornum == 0:
#self.canvas._display.Context.RemoveAll(True)
if not self.canvas.floor_compound_shapes_lst[floornum]:
msg = QtWidgets.QMessageBox()
msg.setIcon(QtWidgets.QMessageBox.Critical)
msg.setText("Current floor has no shapes or geometry,"+ self.floor_name_lst[floornum])
msg.setWindowTitle("Shapes or Geometry Error")
msg.setStandardButtons(QtWidgets.QMessageBox.Ok | QtWidgets.QMessageBox.Cancel)
msg.show()
msg.exec_()
return
floor_name_lst = [self.floor_name_lst[floornum]]
storey_poly_lst = []
if self.base_polygon:
current_floor_poly_lst = self.GetFloorPolygon(floornum,outputFilepath,yamlFilepath)
storey_poly_lst.append(current_floor_poly_lst)
else:
base_poly_lst = self.GetFloorPolygon(self.base_floor_num,outputFilepath,yamlFilepath)
self.base_polygon = base_poly_lst[0]
current_floor_poly_lst= self.GetFloorPolygon(floornum,outputFilepath,yamlFilepath)
storey_poly_lst.append(current_floor_poly_lst)
GetStoreyOverlap(self.base_polygon,storey_poly_lst,floor_name_lst, outputFilepath)
def WriteConcave2WKT(self,hull_lst,floor_name,poly_count):
''' Save the concave hull in WKT format in order to load in QGIS, WKT result saved in ./result/WKT folder'''
if not os.path.exists('./result/WKT'):
os.makedirs('./result/WKT')
new_lst = []
for p in hull_lst:
new_lst.append([float("{:.3f}".format(p[0] + self.georeference_x)),
float("{:.3f}".format(p[1] + self.georeference_y))])
geo_poly = Polygon(new_lst)