iterdxf_single_pass.py

# Copyright (c) 2020, Manfred Moitzi
# License: MIT License
import time
from pathlib import Path
from collections import Counter
from ezdxf.addons import iterdxf
BIGFILE = Path(r'D:\Source\dxftest\GKB-R2010.dxf')
# BIGFILE = Path(r'D:\Source\dxftest\ACAD_R2000.dxf')

name = 'iterdxf.opendxf()'
print(f"{name}\n{len(name)*'-'}")
counter = Counter()
t0 = time.perf_counter()
doc = iterdxf.opendxf(BIGFILE)
for entity in doc.modelspace():
    counter[entity.dxftype()] += 1
doc.close()

tb = time.perf_counter()-t0
print(f'Processing time: {tb:.2f}s')
print(counter)
print()

name = 'iterdxf.single_pass_modelspace()'
print(f"{name}\n{len(name)*'-'}")
counter = Counter()
t0 = time.perf_counter()
for entity in iterdxf.single_pass_modelspace(open(BIGFILE, 'rb'), types=['LINE']):
    counter[entity.dxftype()] += 1

ta = time.perf_counter()-t0
print(f'Processing time: {ta:.2f}s')
print(counter)
print(f'Advantage {name}: {((tb/ta)-1)*100.:.0f}%\n')

name = 'iterdxf.modelspace()'
print(f"{name}\n{len(name)*'-'}")
counter = Counter()
t0 = time.perf_counter()
for entity in iterdxf.modelspace(BIGFILE, types=['LINE']):
    counter[entity.dxftype()] += 1

tc = time.perf_counter()-t0
print(f'Processing time: {tc:.2f}s')
print(counter)
print(f'Advantage {name}: {((tb/tc)-1)*100.:.0f}%\n')