X2375¶
CIR(X81)
X2375 = isogonal conjugate of X8682
X2375 (CIR(X81)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2375 = CIR(X_81)."""
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,
intersect_lines,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02375(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2375 = CIR(X_81) on reference triangle ABC."""
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center"])
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center"])
X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center"])
X_213 = eval_trilinear_point(model, A, B, C, '(b + c)*a**(2)', ID="X_213", classes=["center"])
central_line(model, X_37, X_99, 37, 99)
central_line(model, X_110, X_213, 110, 213)
X_2375 = intersect_lines(model, X_37, X_99, X_110, X_213, ID="X_2375", classes=["selected", "target"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
X_872 = eval_trilinear_point(model, A, B, C, '(a*(b + c))**(2)', ID="X_872", classes=["center", "incident"])
central_line(model, X_101, X_872, 101, 872, incident=True)
return promote_point_to_top(model, X_2375)
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_2375 on the given reference triangle."""
model = create_model('X_2375 = CIR(X_81)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02375(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-02375.json"))
write_center_svg(
model_acute,
here / "x-02375.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)