X2825¶
ISOGONAL CONJUGATE OF X2741
X2825 (ISOGONAL CONJUGATE OF X2741) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2825 = ISOGONAL CONJUGATE OF X_2741."""
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,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02825(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2825 = ISOGONAL CONJUGATE OF X_2741 on reference triangle ABC."""
X_2741 = point_from_barycentrics(model, A, B, C, 1.0279659, 0.40414514, -0.43211102, ID="X_2741", classes=["center"])
X_2825 = isogonal_conjugate(model, A, B, C, X_2741, ID="X_2825", classes=["selected", "target"])
X_58 = eval_trilinear_point(model, A, B, C, 'a/(b + c)', ID="X_58", classes=["center", "incident"])
X_103 = eval_trilinear_point(model, A, B, C, 'a/((a - b)*cot(C) + (a - c)*cot(B))', ID="X_103", classes=["center", "incident"])
central_line(model, X_58, X_103, 58, 103, incident=True)
X_118 = point_from_barycentrics(model, A, B, C, 0.28918651, -0.056547619, 0.76736111, ID="X_118", classes=["center", "incident"])
X_127 = eval_trilinear_point(model, A, B, C, 'b*c*(sin(2*B) - sin(2*C))*((b**(2) - c**(2))*sin(2*A) - b**(2)*sin(2*B) + c**(2)*sin(2*C))', ID="X_127", classes=["center", "incident"])
central_line(model, X_118, X_127, 118, 127, incident=True)
X_116 = eval_trilinear_point(model, A, B, C, 'b*c*((b - c)**(2)*(b**(2) + b*c + c**(2) - a*b - a*c))', ID="X_116", classes=["center", "incident"])
X_132 = point_from_barycentrics(model, A, B, C, 0.11002416, 0.049913231, 0.84006261, ID="X_132", classes=["center", "incident"])
central_line(model, X_116, X_132, 116, 132, incident=True)
return promote_point_to_top(model, X_2825)
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_2825 on the given reference triangle."""
model = create_model('X_2825 = ISOGONAL CONJUGATE OF X_2741')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02825(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-02825.json"))
write_center_svg(
model_acute,
here / "x-02825.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)