X1455¶
X515-BETH CONJUGATE OF X515
X1455 (X515-BETH CONJUGATE OF X515) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1455 = X_515-BETH CONJUGATE OF X_515."""
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,
ceva_conjugate,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
incenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01455(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1455 = X_515-BETH CONJUGATE OF X_515 on reference triangle ABC."""
X_104 = eval_trilinear_point(model, A, B, C, '1/(-1 + cos(B) + cos(C))', ID="X_104", classes=["center"])
X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center"])
X_1455 = ceva_conjugate(model, A, B, C, X_104, X_56, ID="X_1455", classes=["selected", "target"])
X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
X_34 = eval_trilinear_point(model, A, B, C, '1 - sec(A)', ID="X_34", classes=["center", "incident"])
central_line(model, X_25, X_34, 25, 34, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_84 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C) - cos(A) - 1)', ID="X_84", classes=["center", "incident"])
central_line(model, X_1, X_84, 1, 84, incident=True)
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_227 = eval_trilinear_point(model, A, B, C, '((b + c)*(cos(B) + cos(C) - cos(A) - 1)*tan(A/2))', ID="X_227", classes=["center", "incident"])
central_line(model, X_3, X_227, 3, 227, incident=True)
return promote_point_to_top(model, X_1455)
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_1455 on the given reference triangle."""
model = create_model('X_1455 = X_515-BETH CONJUGATE OF X_515')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01455(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-01455.json"))
write_center_svg(
model_acute,
here / "x-01455.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)