Python Routinen mit PyRx als Ersatz für die .lsp Routinen verwendet.
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# eckrad.py
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# ILS Eckrad - PyRx-Implementierung
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# Ersetzt c:ILS_Eckrad und ils-eckrad-insert aus KreiselInsert.lsp
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# Setzt voraus: PyRx (cad-pyrx) in BricsCAD/AutoCAD geladen
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# ============================================
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import math
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import PyRx as Rx
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import PyGe as Ge
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import PyDb as Db
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import PyEd as Ed
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from elemente.utils import (
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get_block_path,
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component_next_number,
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merge_attribs,
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ensure_block_from_dwg,
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create_attrib_defs,
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insert_block_with_attribs,
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)
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# ============================================================
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# Konstanten (aus KreiselInsert.lsp)
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# ============================================================
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KREISEL_DURCHMESSER = 800.0
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ECKRAD_DEFAULT_HOEHE = 2000.0
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ECKRAD_ATTRIB_DEFS = [
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("NAME", ""),
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("DREHRICHTUNG", "UZS"),
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("DREHUNG", "0"),
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("NUMMER", "0"),
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("HOEHE", "0"),
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]
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# ============================================================
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# Eckrad-spezifische Funktionen
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# ============================================================
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def ensure_eckrad_block(db, bname, block_path):
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"""AN8.dwg als Basis-Block laden und als ECKRAD_n Block definieren,
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falls noch nicht vorhanden."""
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bt = Db.BlockTable(db.blockTableId(), Db.OpenMode.kForRead)
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if bt.has(bname):
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print(f"\n-> Verwende bestehende Blockdefinition: {bname}")
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return True
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if not ensure_block_from_dwg(db, "AN8.dwg", block_path):
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return False
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# Neue Blockdefinition ECKRAD_n erzeugen
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bt.upgradeOpen()
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new_btr = Db.BlockTableRecord()
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new_btr.setName(bname)
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bt.add(new_btr)
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# AN8-Blockdefinition als BlockReference einfuegen
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an8_id = bt.getAt("AN8")
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bref = Db.BlockReference(Ge.Point3d(0, 0, 0), an8_id)
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new_btr.appendAcDbEntity(bref)
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# Unsichtbare Attribut-Definitionen erzeugen
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create_attrib_defs(new_btr, ECKRAD_ATTRIB_DEFS)
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print(f"\n-> Neue Blockdefinition: {bname}")
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return True
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def insert_eckrad(db, insert_point, rotation_deg, attribs=None):
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"""Eckrad als Block-Referenz mit Attributen einfuegen.
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Parameter:
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db - aktuelle Datenbank
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insert_point - Ge.Point3d (x, y, z)
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rotation_deg - Drehwinkel in Grad
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attribs - dict mit Attribut-Ueberschreibungen (optional)
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Rueckgabe: ObjectId der eingefuegten BlockReference
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"""
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block_path = get_block_path()
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# Attribute vorbereiten
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merged = merge_attribs(attribs, ECKRAD_ATTRIB_DEFS)
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merged["DREHUNG"] = f"{rotation_deg:.1f}"
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# Hoehe aus Z-Koordinate oder Attribut
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z_hoehe = insert_point.z
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if z_hoehe > 0:
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merged["HOEHE"] = f"{z_hoehe:.0f}"
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else:
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try:
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z_hoehe = float(merged.get("HOEHE", "0"))
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except ValueError:
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z_hoehe = 0.0
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# Nummer vergeben
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nummer = component_next_number(db, "ECKRAD_")
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merged["NUMMER"] = str(nummer)
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merged["NAME"] = f"ECKRAD_{nummer}"
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# Blockname
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bname = f"ECKRAD_{nummer}"
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# Block-Definition sicherstellen
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if not ensure_eckrad_block(db, bname, block_path):
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return None
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# Block einfuegen mit Attributen
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pt = Ge.Point3d(insert_point.x, insert_point.y, z_hoehe)
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obj_id = insert_block_with_attribs(db, bname, pt, rotation_deg, merged)
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print(f"\n-> Eckrad #{nummer} eingefuegt: {bname}"
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f" bei {insert_point.x:.1f},{insert_point.y:.1f}"
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f" Rotation={rotation_deg:.1f} Hoehe={z_hoehe:.0f}")
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return obj_id
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# ============================================================
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# CAD-Befehl: ILS_Eckrad
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# ============================================================
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@Rx.command("ILS_Eckrad")
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def ils_eckrad():
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"""Befehl ILS_Eckrad - fragt Eingaben ab und fuegt Eckrad ein.
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Ablauf:
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1. Beruehrpunkt anklicken (wo der Kreis tangential anliegen soll)
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2. Richtungspunkt anklicken (bestimmt Versatzrichtung zum Kreismittelpunkt)
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3. Kreismittelpunkt = Beruehrpunkt + Radius in Richtung des 2. Klicks
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4. Hoehe aus Z-Koordinate oder manuell
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"""
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ed = Ed.Editor()
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db = Db.HostApplicationServices().workingDatabase()
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# 1. Beruehrpunkt (Tangentenpunkt)
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res_tangent = ed.getPoint("\nBeruehrpunkt Eckrad (Tangente): ")
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if res_tangent[0] != Ed.PromptStatus.eOk:
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return
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pt_tangent = res_tangent[1]
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# 2. Richtungspunkt (Gummiband vom Beruehrpunkt)
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res_dir = ed.getPoint("\nRichtung zum Kreismittelpunkt: ", pt_tangent)
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if res_dir[0] != Ed.PromptStatus.eOk:
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return
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pt_dir = res_dir[1]
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# 3. Winkel und Versatz berechnen
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dx = pt_dir.x - pt_tangent.x
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dy = pt_dir.y - pt_tangent.y
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dist = math.sqrt(dx * dx + dy * dy)
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if dist <= 0.001:
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print("\nFehler: Beruehr- und Richtungspunkt sind identisch!")
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return
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ux = dx / dist
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uy = dy / dist
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radius = KREISEL_DURCHMESSER / 2.0
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center_x = pt_tangent.x + radius * ux
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center_y = pt_tangent.y + radius * uy
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rotation = math.degrees(math.atan2(dy, dx))
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# 4. Hoehe bestimmen
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if pt_tangent.z > 0:
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hoehe = pt_tangent.z
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print(f"\n-> Hoehe aus 3D-Punkt uebernommen: {hoehe:.0f}")
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else:
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res_hoehe = ed.getDouble(f"\nHoehe (Z-Koordinate) <{ECKRAD_DEFAULT_HOEHE:.0f}>: ")
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if res_hoehe[0] == Ed.PromptStatus.eOk:
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hoehe = res_hoehe[1]
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else:
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hoehe = ECKRAD_DEFAULT_HOEHE
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# 5. Einfuegen
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insert_pt = Ge.Point3d(center_x, center_y, hoehe)
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insert_eckrad(db, insert_pt, rotation)
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