X892¶
ISOGONAL CONJUGATE OF X351
X892 (ISOGONAL CONJUGATE OF X351) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_892 = ISOGONAL CONJUGATE OF X_351."""
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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00892(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_892 = ISOGONAL CONJUGATE OF X_351 on reference triangle ABC."""
X_351 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) - c**(2))*(b**(2) + c**(2) - 2*a**(2)))', ID="X_351", classes=["center"])
X_892 = isogonal_conjugate(model, A, B, C, X_351, ID="X_892", classes=["selected", "target"])
X_111 = eval_trilinear_point(model, A, B, C, 'a/(2*a**(2) - b**(2) - c**(2))', ID="X_111", classes=["center", "incident"])
X_381 = eval_trilinear_point(model, A, B, C, '2*cos(B - C) - cos(A)', ID="X_381", classes=["center", "incident"])
central_line(model, X_111, X_381, 111, 381, incident=True)
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", 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_99, X_523, 99, 523, incident=True)
X_316 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(4) + c**(4) - a**(4) - b**(2)*c**(2)))', ID="X_316", classes=["center", "incident"])
X_524 = eval_trilinear_point(model, A, B, C, '(2*a**(2) - b**(2) - c**(2))/a', ID="X_524", classes=["center", "incident"])
central_line(model, X_316, X_524, 316, 524, incident=True)
return promote_point_to_top(model, X_892)
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_892 on the given reference triangle."""
model = create_model('X_892 = ISOGONAL CONJUGATE OF X_351')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00892(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-00892.json"))
write_center_svg(
model_acute,
here / "x-00892.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)