X3489¶
ISOGONAL CONJUGATE OF X627
X3489 (ISOGONAL CONJUGATE OF X627) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3489 = ISOGONAL CONJUGATE OF X_627."""
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,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
eval_trilinear_point,
isogonal_conjugate,
nine_point_center_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03489(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3489 = ISOGONAL CONJUGATE OF X_627 on reference triangle ABC."""
X_627 = point_from_barycentrics(model, A, B, C, 0.44119208, 0.35326848, 0.20553943, ID="X_627", classes=["center"])
X_3489 = isogonal_conjugate(model, A, B, C, X_627, ID="X_3489", classes=["selected", "target"])
X_51 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(B - C)', ID="X_51", classes=["center", "incident"])
X_61 = eval_trilinear_point(model, A, B, C, 'sin(A + pi /6)', ID="X_61", classes=["center", "incident"])
central_line(model, X_51, X_61, 51, 61, incident=True)
X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
X_302 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)*sin(A + pi /6)', ID="X_302", classes=["center", "incident"])
central_line(model, X_5, X_302, 5, 302, incident=True)
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_1337 = eval_barycentric_point(model, A, B, C, '(a**(2)*(2*D*U - 3**(1/2)*V*W)/(4*D + 3**(1/2)*a**(2)))', ID="X_1337", classes=["center", "incident"])
central_line(model, X_3, X_1337, 3, 1337, incident=True)
return promote_point_to_top(model, X_3489)
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_3489 on the given reference triangle."""
model = create_model('X_3489 = ISOGONAL CONJUGATE OF X_627')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03489(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-03489.json"))
write_center_svg(
model_acute,
here / "x-03489.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)