X2885¶
COMPLEMENTARY CONJUGATE OF X8
X2885 (COMPLEMENTARY CONJUGATE OF X8) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2885 = COMPLEMENTARY CONJUGATE OF X_8."""
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,
centroid_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
nine_point_center_of,
point_from_barycentrics,
promote_point_to_top,
spieker_center_of,
)
from geometor.etc.render import write_center_svg
def construct_x_02885(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2885 = COMPLEMENTARY CONJUGATE OF X_8 on reference triangle ABC."""
X_2885 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - 3*a)*(b**(3) + c**(3) + a*b**(2) + a*c**(2) - 3*b**(2)*c - 3*b*c**(2)))', ID="X_2885", classes=["selected", "target"])
X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
X_121 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - 2*a)*(b**(3) + c**(3) + a*(b**(2) + c**(2)) - 2*b*c*(b + c)))', ID="X_121", classes=["center", "incident"])
central_line(model, X_5, X_121, 5, 121, incident=True)
X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
X_496 = eval_trilinear_point(model, A, B, C, '2 - cos(B - C)', ID="X_496", classes=["center", "incident"])
central_line(model, X_10, X_496, 10, 496, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_1222 = point_from_barycentrics(model, A, B, C, 0.3683818, 0.31991051, 0.31170768, ID="X_1222", classes=["center", "incident"])
central_line(model, X_2, X_1222, 2, 1222, incident=True)
return promote_point_to_top(model, X_2885)
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_2885 on the given reference triangle."""
model = create_model('X_2885 = COMPLEMENTARY CONJUGATE OF X_8')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02885(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-02885.json"))
write_center_svg(
model_acute,
here / "x-02885.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)