X3268¶
ISOTOMIC CONJUGATE OF X476
X3268 (ISOTOMIC CONJUGATE OF X476) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3268 = ISOTOMIC CONJUGATE OF X_476."""
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_barycentric_point,
eval_trilinear_point,
isotomic_conjugate,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03268(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3268 = ISOTOMIC CONJUGATE OF X_476 on reference triangle ABC."""
X_476 = eval_trilinear_point(model, A, B, C, '1/((1 + 2*cos(2*A))*sin(B - C))', ID="X_476", classes=["center"])
X_3268 = isotomic_conjugate(model, A, B, C, X_476, ID="X_3268", classes=["selected", "target"])
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
central_line(model, X_99, X_110, 99, 110, incident=True)
X_325 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)', ID="X_325", classes=["center", "incident"])
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
central_line(model, X_325, X_523, 325, 523, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_1637 = eval_barycentric_point(model, A, B, C, 'tan(A)*(tan(B) - tan(C))*(tan(B) + tan(C) - 2*tan(A))', ID="X_1637", classes=["center", "incident"])
central_line(model, X_2, X_1637, 2, 1637, incident=True)
return promote_point_to_top(model, X_3268)
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_3268 on the given reference triangle."""
model = create_model('X_3268 = ISOTOMIC CONJUGATE OF X_476')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03268(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-03268.json"))
write_center_svg(
model_acute,
here / "x-03268.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)