X2451¶
INVERSE-IN-2nd-LEMOINE-CIRCLE OF X1316
X2451 (INVERSE-IN-2nd-LEMOINE-CIRCLE OF X1316) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2451 = INVERSE-IN-2nd-LEMOINE-CIRCLE OF X_1316."""
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,
crosspoint,
eval_trilinear_point,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_02451(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2451 = INVERSE-IN-2nd-LEMOINE-CIRCLE OF X_1316 on reference triangle ABC."""
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
X_648 = eval_trilinear_point(model, A, B, C, '1/(a*(b**(2) - c**(2))*(b**(2) + c**(2) - a**(2)))', ID="X_648", classes=["center"])
X_2451 = crosspoint(model, A, B, C, X_6, X_648, ID="X_2451", classes=["selected", "target"])
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
central_line(model, X_6, X_523, 6, 523, incident=True)
X_647 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))*(b**(2) + c**(2) - a**(2))', ID="X_647", classes=["center", "incident"])
X_657 = eval_trilinear_point(model, A, B, C, '(1 + cos(A))*(cos(B) - cos(C))', ID="X_657", classes=["center", "incident"])
central_line(model, X_647, X_657, 647, 657, incident=True)
X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
X_1570 = eval_trilinear_point(model, A, B, C, 'a*(cot(A) + cot(omega) - 4*tan(omega) )', ID="X_1570", classes=["center", "incident"])
central_line(model, X_512, X_1570, 512, 1570, incident=True)
return promote_point_to_top(model, X_2451)
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_2451 on the given reference triangle."""
model = create_model('X_2451 = INVERSE-IN-2nd-LEMOINE-CIRCLE OF X_1316')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02451(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-02451.json"))
write_center_svg(
model_acute,
here / "x-02451.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)