250 lines
9.6 KiB
Python
250 lines
9.6 KiB
Python
import argparse
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import configparser
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import ezdxf.document
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from ezdxf import readfile
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import os
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import sys
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import math
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import json
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import re
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from shapely import Point
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"""
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Dieses Programm:
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- liest die dxf Datei und holt sich von den Layern der dxf Datei die Positionen
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+ der Motoren, Sensoren und Aktoren
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+ der Unterverteiler
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+ der Polylinien der Kabelpritschen
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- erzeugt daraus eine .json Datei im Work Ordner
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"""
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def write_results(jsnResults, outdir, filename):
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""" write results to a json file
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"""
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print("writing results to a json file ...")
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outfile = os.path.join(outdir, filename)
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with open(outfile, 'w', encoding='utf-8') as fh:
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fh.write(jsnResults)
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print("done")
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def merge_two_dicts(x, y):
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z = x.copy()
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z.update(y)
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return z
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def get_input_positions(msp: ezdxf.document.Drawing.modelspace):
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"""hole alle Positionen der Eingänge !!Sensor Positionen erst nach Offsett-Addition "Mitte-Mitte"!!
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"""
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allIds = dict()
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SpecialKeys = ["MB", # Separator
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"MA", # Motor
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"BG", # Stausensor
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"FC" # Motorschutzschalter
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]
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# Über alle Blockreferenzen (INSERT) im Modelspace laufen
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for insert in msp.query('INSERT'):
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if len(insert.attribs) == 0:
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continue # Überspringe Blöcke ohne Attribute
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id = ""
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ld = dict()
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for attrib in insert.attribs:
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if len(insert.attribs) == 0:
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continue # Überspringe Blöcke ohne Attribute
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#print(f"Attribut Name: {attrib.dxf.tag}, Wert: {attrib.dxf.text}")
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ld[attrib.dxf.tag] = attrib.dxf.text
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if attrib.dxf.tag == "IO":
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id = attrib.dxf.text
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# print(f"-- coord io {id}--: {attrib.dxf.insert}") # position des Blocks
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if attrib.dxf.tag == "B":
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for spec in SpecialKeys:
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if spec in attrib.dxf.text:
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id = attrib.dxf.text
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#print(f"-- coord {attrib.dxf.text} --: {attrib.dxf.insert}")
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if attrib.dxf.tag == "REALE_POSITION" and attrib.dxf.text == "x":
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#print(f"-- coord real --: {attrib.dxf.insert}")
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pos = attrib.dxf.insert #Position Ecke unten links von "x"-Marker auslesen
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# Hoehe und Breite von "x" addieren, um Mittelpunkt zu finden
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breite_marker = config.getfloat("Sensor_Marker", "Breite")
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hoehe_marker = config.getfloat("Sensor_Marker", "Hoehe")
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pos_midx = pos.x + breite_marker*0.5
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pos_midy = pos.y + hoehe_marker*0.5
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ld["pos"] = (round(pos_midx, 1), round(pos_midy, 1))
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# Nur wenn eine ID vorhanden ist, und eine gültige Position existiert
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if id and "pos" in ld and isinstance(ld["pos"], tuple) and len(ld["pos"]) == 2:
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if id in allIds:
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allIds[id] = merge_two_dicts(allIds[id], ld) #Kombiniert alle infos aus dxf und "pos"
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else:
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allIds[id] = ld
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return allIds
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def create_mappings(positions:dict, distributors:dict) -> dict:
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unterverteiler_pfad = ""
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dnamen = dict()
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# sammle die Sensoren mit ihren zugehörigen Unterverteilern
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sensor2unterverteiler = dict()
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for sensorname,v in positions.items():
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unterverteiler_pfad = v["KENNZEICHNUNG"]
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[anlage, verteiler_karte] = unterverteiler_pfad.split('+')
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[verteiler, karte] = verteiler_karte.split('-')
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if not verteiler in dnamen:
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dnamen[verteiler] = True
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sensor2unterverteiler[sensorname] = verteiler
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# jetzt zu jedem Unterverteiler die zugehörigen Sensoren merken
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uv2sensor = dict()
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for sensorname,verteiler in sensor2unterverteiler.items():
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if verteiler not in uv2sensor:
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uv2sensor[verteiler] = list()
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uv2sensor[verteiler].append(sensorname)
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return uv2sensor
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def get_subdistributor_positions(msp):
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"""hole alle Positionen der Unterverteiler !!UV-Positionen bereits "Mitte-Mitte"!!
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"""
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# # Über alle Texte laufen
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# for text in msp.query('MTEXT'):
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# print(f"Inhalt: {text.dxf.text}")
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# print(f"Layer: {text.dxf.layer}")
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# print(f"Einfügepunkt: {text.dxf.insert}")
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# print(f"Breite: {text.dxf.width}")
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# # print("Farbe:", text.dxf.color) # Achtung: 256 = "ByLayer"
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# # print("Höhe (height):", text.dxf.height)
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# # print("Rotation (degrees):", text.dxf.rotation)
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# # print("Breitenfaktor (width factor):", text.dxf.width)
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# # print("Style (Schriftart):", text.dxf.style)
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# # print("Handle:", text.dxf.handle)
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# print("---")
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ret = dict()
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# Alle Texte auf Layer "xy"
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for text in msp.query('MTEXT[layer=="Busverteiler-Kennzeichnung"]'):
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print(f"Text auf Layer 'Busverteiler-Kennzeichnung': {text.dxf.text}")
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match = re.search(r"UC\w+", text.dxf.text)
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if match:
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nameUC = match.group(0)
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ret[nameUC] = (round(text.dxf.insert[0],1), round(text.dxf.insert[1],1)) #nur x und y Koordinate in Json schreiben
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return ret
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# helper function
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def print_line(e):
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print("LINE on layer: %s\n" % e.dxf.layer)
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print("points: %s\n" % repr(e.dxf))
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def print_polyline(e):
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print("POLYLINE on layer: %s\n" % e.dxf.layer)
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#print("points: %s\n" % repr(e.dxf))
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#print("y point: %s\n" % e.dxf.y)
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for x, y, start_width, end_width, bulge in e.get_points(): # Gibt Tuple (x, y, start_width, end_width, bulge)
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print(f" Punkt: ({x}, {y}), Startbreite: ({start_width}, Endbreite: {end_width})")
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if e.is_closed:
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print("Diese Polyline ist geschlossen.")
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def get_rack_positions(msp):
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"""hole alle Positionen aller Kabelpritschen und nummeriere Racks"""
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ret = dict()
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rack_counter = 1 #Zaehler für Rack Nummerierung
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for e in msp.query('LWPOLYLINE[layer=="PRITSCHE_200-60"]'):
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#print_polyline(e)
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rack_key = f"Rack_{rack_counter}"
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ret[rack_key] = list()
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for x, y, start_width, end_width, bulge in e.get_points(): # Gibt Tuple (x, y, start_width, end_width, bulge)
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p = [round(x,1), round(y,1)]
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ret[rack_key].append(p)
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rack_counter +=1
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# iterate over all entities in modelspace
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# for e in msp:
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# if e.dxftype() == "LINE":
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# print_line(e)
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# if e.dxftype() == "LWPOLYLINE":
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# print_polyline(e)
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return ret
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def to_json(d, pretty: bool = True) -> str:
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return json.dumps(d, indent=2 if pretty else None, ensure_ascii=False, default=str) #ensure_ascii false für darstellung von "ue"
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def get_dxf_file(filepath):
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"""hole das dxf file
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"""
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try:
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print("reading file ..", end='')
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doc = ezdxf.readfile(filepath)
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print("done")
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except IOError:
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print(f"Not a DXF file or a generic I/O error.")
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sys.exit(1)
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except ezdxf.DXFStructureError:
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print(f"Invalid or corrupted DXF file.")
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sys.exit(2)
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return doc
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='fetches the x/y positions from a dxf file', prog='getpositions')
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parser.add_argument('-f', '--filename', action='store', required=True, default="ST_6300_Steuerungstestlayout1_neueBloecke.dwg", help='which file should be fetched', metavar='myfile.dwg')
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parser.add_argument('-s', '--sensors', action='store_true', help='fetch all position of sensors, motors, actors')
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parser.add_argument('-d', '--dists', action='store_true', help='fetch all positions of all subdistributors')
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parser.add_argument('-r', '--rack', action='store_true', help='fetch all positions of all cable racks')
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parser.add_argument('-w', '--write', action='store_true', help='write results into a json file')
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parser.add_argument('-c', '--console', action='store_true', help='print results to output')
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args = parser.parse_args()
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out_dir = os.environ.get('PROJECT_DATA')
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work_dir = os.environ.get('PROJECT_WORK')
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config_dir = os.environ.get("PROJECT_CFG")
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filename = args.filename
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if not os.path.exists(filename):
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dxf_path = os.path.join(work_dir, filename)
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if not os.path.exists(dxf_path):
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print(f'no such file {dxf_path}')
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raise FileExistsError
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else:
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dxf_path = filename
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doc = get_dxf_file(dxf_path) # type: ignore
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msp = doc.modelspace()
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res_pos = dict()
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res_dist = dict()
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res_rac = dict()
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res_mappings = dict()
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if args.sensors or args.dists or args.rack:
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config = configparser.ConfigParser(allow_no_value=True)
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config.read(os.path.join(config_dir, "getpositions.cfg"))
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output_results = dict()
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if args.sensors:
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res_pos = get_input_positions(msp)
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output_results['sensors'] = res_pos
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if args.console:
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print(to_json(res_pos))
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if args.dists:
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res_dist = get_subdistributor_positions(msp)
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output_results['distributors'] = res_dist
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if args.console:
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print(to_json(res_dist))
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if args.dists and args.sensors:
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res_mappings = create_mappings(res_pos, res_dist)
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output_results['mappings'] = res_mappings
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if args.console:
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print(to_json(res_mappings))
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if args.rack:
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res_rac = get_rack_positions(msp)
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output_results['racks'] = res_rac
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if args.console:
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print(to_json(res_rac))
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if args.write:
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basename = os.path.splitext(args.filename)[0]
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write_results(to_json(output_results), work_dir, basename+"_positions.json")
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else:
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parser.print_help()
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