X2471¶
INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)
X2471 is the insimilicenter(orthocentroidal circle, 1st Lemoine circle).
X2471 (INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)."""
from __future__ import annotations
from pathlib import Path
import sympy.geometry as spg
from geometor.model import Model
from geometor.etc.ops import (
central_line,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02471(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE) on reference triangle ABC."""
X_2471 = eval_trilinear_point(model, A, B, C, '(cos(A) + 4*cos(B)*cos(C) + J*cos(A - omega ))', ID="X_2471", classes=["selected", "target"])
X_182 = eval_trilinear_point(model, A, B, C, 'cos(A- omega )', ID="X_182", classes=["center", "incident"])
X_381 = eval_trilinear_point(model, A, B, C, '2*cos(B - C) - cos(A)', ID="X_381", classes=["center", "incident"])
central_line(model, X_182, X_381, 182, 381, incident=True)
X_1672 = eval_trilinear_point(model, A, B, C, '1 + cos(A - omega )', ID="X_1672", classes=["center", "incident"])
X_2464 = eval_trilinear_point(model, A, B, C, '(J - cos(A) - 4*cos(B)*cos(C))', ID="X_2464", classes=["center", "incident"])
central_line(model, X_1672, X_2464, 1672, 2464, incident=True)
X_1673 = eval_trilinear_point(model, A, B, C, '1 - cos(A - omega )', ID="X_1673", classes=["center", "incident"])
X_2463 = eval_trilinear_point(model, A, B, C, '(J + cos(A) + 4*cos(B)*cos(C))', ID="X_2463", classes=["center", "incident"])
central_line(model, X_1673, X_2463, 1673, 2463, incident=True)
return promote_point_to_top(model, X_2471)
def build_model(
sides: tuple[float, float, float] = (5.0, 6.0, 7.0),
show_guides: bool = False,
) -> Model:
"""Build a `geometor.model.Model` for X_2471 on the given reference triangle."""
model = create_model('X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02471(model, A, B, C)
return model
if __name__ == "__main__":
here = Path(__file__).resolve().parent
model_acute = build_model((5.0, 6.0, 7.0))
model_acute.save(str(here / "x-02471.json"))
write_center_svg(
model_acute,
here / "x-02471.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)