neue Python Funktion zum setzen des Einfügepunktes an die korrekte Stelle für Oflo Bögen und Weichen 45/90 Grad
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@echo off
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REM ================================================================
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REM Setzt Einfuegepunkte fuer Omniflo DXF-Dateien
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REM ================================================================
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call "%~dp0setenv.bat"
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python "%DXFM_LIB%\set_einfuegepkt.py" %*
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"""
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Setzt den Einfuegepunkt ($INSBASE) von Omniflo DXF-Dateien.
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Mit --boegen: Einfuegepunkt auf den Schnittpunkt der Tangenten
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am Anfangs- und Endpunkt der Bogenkurve.
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Mit --weichen45 / --weichen90: Einfuegepunkt auf den Schnittpunkt
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der laengsten vertikalen Linie und des Endpunktes der Bogenkurve.
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"""
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import argparse
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import json
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import math
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import os
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import sys
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import ezdxf
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def find_arc(doc):
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"""Findet die erste ARC-Entity im Modelspace."""
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msp = doc.modelspace()
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for entity in msp:
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if entity.dxftype() == "ARC":
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return entity
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return None
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def tangent_intersection(arc):
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"""Berechnet den Schnittpunkt der Tangenten am Start- und Endpunkt des Bogens.
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Bei 180-Grad-Boegen wird der Mittelpunkt zwischen Start und Ende verwendet.
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"""
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cx, cy, _ = arc.dxf.center
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r = arc.dxf.radius
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a_start = math.radians(arc.dxf.start_angle)
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a_end = math.radians(arc.dxf.end_angle)
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# Start- und Endpunkt
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p1x = cx + r * math.cos(a_start)
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p1y = cy + r * math.sin(a_start)
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p2x = cx + r * math.cos(a_end)
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p2y = cy + r * math.sin(a_end)
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# Tangentenrichtungen (senkrecht zum Radius)
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d1x = -math.sin(a_start)
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d1y = math.cos(a_start)
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d2x = -math.sin(a_end)
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d2y = math.cos(a_end)
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# Determinante
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det = d1x * (-d2y) - (-d2x) * d1y
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if abs(det) < 1e-9:
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# Tangenten parallel (z.B. 180-Grad-Bogen) -> Mittelpunkt
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return (p1x + p2x) / 2, (p1y + p2y) / 2
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dx = p2x - p1x
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dy = p2y - p1y
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t = (-dx * d2y + dy * d2x) / det
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ix = p1x + t * d1x
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iy = p1y + t * d1y
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return ix, iy
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def find_longest_vertical_line(doc):
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"""Findet die laengste vertikale Linie im Modelspace und gibt deren x-Koordinate zurueck."""
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msp = doc.modelspace()
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longest = None
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longest_len = 0
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for entity in msp:
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if entity.dxftype() != "LINE":
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continue
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start = entity.dxf.start
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end = entity.dxf.end
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dx = abs(end[0] - start[0])
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if dx > 0.01:
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continue
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length = abs(end[1] - start[1])
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if length > longest_len:
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longest_len = length
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longest = entity
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return longest
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def arc_endpoint(arc):
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"""Gibt den Endpunkt (end_angle) des Bogens zurueck."""
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cx, cy, _ = arc.dxf.center
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r = arc.dxf.radius
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a_end = math.radians(arc.dxf.end_angle)
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return cx + r * math.cos(a_end), cy + r * math.sin(a_end)
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def weichen_insertion_point(doc):
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"""Berechnet den Einfuegepunkt fuer eine Weiche:
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Schnittpunkt der laengsten vertikalen Linie mit einer Horizontalen
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durch den Endpunkt der Bogenkurve.
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"""
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vline = find_longest_vertical_line(doc)
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if vline is None:
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return None
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arc = find_arc(doc)
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if arc is None:
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return None
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vx = vline.dxf.start[0]
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_, ey = arc_endpoint(arc)
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return vx, ey
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def process_weichen(data_dir, json_path, results_dir, kurven_winkel):
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"""Verarbeitet Weichen-DXF-Dateien fuer den angegebenen KurvenWinkel."""
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with open(json_path, "r", encoding="utf-8") as f:
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weichen = json.load(f)
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omniflo_dir = os.path.join(data_dir, "omniflo")
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filtered = [w for w in weichen if w["KurvenWinkel"] == kurven_winkel]
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if not filtered:
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print(f"Keine Weichen mit KurvenWinkel={kurven_winkel} gefunden.")
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return
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for weiche in filtered:
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sivasnr = str(weiche["Sivasnr"])
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dxf_path = os.path.join(omniflo_dir, f"{sivasnr}.dxf")
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if not os.path.exists(dxf_path):
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print(f"WARNUNG: {dxf_path} nicht gefunden, ueberspringe.")
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continue
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doc = ezdxf.readfile(dxf_path)
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result = weichen_insertion_point(doc)
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if result is None:
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print(f"WARNUNG: Kein ARC oder keine vertikale Linie in {sivasnr}.dxf, ueberspringe.")
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continue
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ix, iy = result
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old_base = doc.header.get("$INSBASE", (0, 0, 0))
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doc.header["$INSBASE"] = (ix, iy, 0)
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out_path = os.path.join(results_dir, f"{sivasnr}.dxf")
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doc.saveas(out_path)
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print(
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f"{sivasnr}: INSBASE ({old_base[0]:.2f}, {old_base[1]:.2f}) "
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f"-> ({ix:.2f}, {iy:.2f}) [{weiche['ProfilTyp']}]"
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)
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print(f"\nErgebnisse in: {results_dir}")
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def process_boegen(data_dir, json_path, results_dir):
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"""Verarbeitet alle Boegen-DXF-Dateien."""
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with open(json_path, "r", encoding="utf-8") as f:
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boegen = json.load(f)
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omniflo_dir = os.path.join(data_dir, "omniflo")
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for bogen in boegen:
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sivasnr = str(bogen["Sivasnr"])
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dxf_path = os.path.join(omniflo_dir, f"{sivasnr}.dxf")
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if not os.path.exists(dxf_path):
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print(f"WARNUNG: {dxf_path} nicht gefunden, ueberspringe.")
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continue
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doc = ezdxf.readfile(dxf_path)
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arc = find_arc(doc)
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if arc is None:
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print(f"WARNUNG: Kein ARC in {sivasnr}.dxf gefunden, ueberspringe.")
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continue
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ix, iy = tangent_intersection(arc)
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old_base = doc.header.get("$INSBASE", (0, 0, 0))
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doc.header["$INSBASE"] = (ix, iy, 0)
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out_path = os.path.join(results_dir, f"{sivasnr}.dxf")
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doc.saveas(out_path)
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print(
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f"{sivasnr}: INSBASE ({old_base[0]:.2f}, {old_base[1]:.2f}) "
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f"-> ({ix:.2f}, {iy:.2f}) [{bogen['ProfilTyp']}]"
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)
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print(f"\nErgebnisse in: {results_dir}")
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def main():
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parser = argparse.ArgumentParser(
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description="Setzt Einfuegepunkte fuer Omniflo DXF-Dateien"
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)
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parser.add_argument(
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"--boegen",
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action="store_true",
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help="Einfuegepunkt auf Tangentenschnittpunkt der Bogenkurve setzen",
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)
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parser.add_argument(
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"--weichen45",
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action="store_true",
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help="Einfuegepunkt fuer 45-Grad-Weichen setzen",
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)
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parser.add_argument(
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"--weichen90",
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action="store_true",
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help="Einfuegepunkt fuer 90-Grad-Weichen setzen",
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)
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args = parser.parse_args()
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if not args.boegen and not args.weichen45 and not args.weichen90:
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parser.print_help()
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sys.exit(1)
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data_dir = os.environ.get("DXFM_DATA")
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results_dir = os.environ.get("DXFM_RESULTS")
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if not data_dir or not results_dir:
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print("FEHLER: Umgebungsvariablen DXFM_DATA und DXFM_RESULTS muessen gesetzt sein.")
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print("Bitte zuerst setenv.bat ausfuehren.")
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sys.exit(1)
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os.makedirs(results_dir, exist_ok=True)
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if args.boegen:
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json_path = os.path.join(data_dir, "json", "omniflo_boegen.json")
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if not os.path.exists(json_path):
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print(f"FEHLER: {json_path} nicht gefunden.")
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sys.exit(1)
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process_boegen(data_dir, json_path, results_dir)
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if args.weichen45 or args.weichen90:
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json_path = os.path.join(data_dir, "json", "omniflo_weichen.json")
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if not os.path.exists(json_path):
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print(f"FEHLER: {json_path} nicht gefunden.")
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sys.exit(1)
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if args.weichen45:
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print("=== Weichen 45 Grad ===")
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process_weichen(data_dir, json_path, results_dir, 45)
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if args.weichen90:
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print("=== Weichen 90 Grad ===")
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process_weichen(data_dir, json_path, results_dir, 90)
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if __name__ == "__main__":
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main()
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