X2424¶
ISOGONAL CONJUGATE OF X2398
X2424 (ISOGONAL CONJUGATE OF X2398) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2424 = ISOGONAL CONJUGATE OF X_2398."""
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,
isogonal_conjugate,
point_from_barycentrics,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_02424(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2424 = ISOGONAL CONJUGATE OF X_2398 on reference triangle ABC."""
X_2398 = point_from_barycentrics(model, A, B, C, -1.2222222, 0.33333333, 1.8888889, ID="X_2398", classes=["center"])
X_2424 = isogonal_conjugate(model, A, B, C, X_2398, ID="X_2424", classes=["selected", "target"])
X_103 = eval_trilinear_point(model, A, B, C, 'a/((a - b)*cot(C) + (a - c)*cot(B))', ID="X_103", classes=["center", "incident"])
X_106 = eval_trilinear_point(model, A, B, C, 'a/(2*a - b - c)', ID="X_106", classes=["center", "incident"])
central_line(model, X_103, X_106, 103, 106, incident=True)
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", 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_6, X_657, 6, 657, incident=True)
X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
X_663 = eval_trilinear_point(model, A, B, C, 'a*(b - c)*(b + c - a)', ID="X_663", classes=["center", "incident"])
central_line(model, X_56, X_663, 56, 663, incident=True)
return promote_point_to_top(model, X_2424)
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_2424 on the given reference triangle."""
model = create_model('X_2424 = ISOGONAL CONJUGATE OF X_2398')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02424(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-02424.json"))
write_center_svg(
model_acute,
here / "x-02424.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)