X3448¶
ISOGONAL CONJUGATE OF X3447
X3448 (ISOGONAL CONJUGATE OF X3447) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3448 = ISOGONAL CONJUGATE OF X_3447."""
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_trilinear_point,
isogonal_conjugate,
orthocenter_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03448(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3448 = ISOGONAL CONJUGATE OF X_3447 on reference triangle ABC."""
X_3447 = point_from_barycentrics(model, A, B, C, 1.4554469, 0.27442248, -0.72986939, ID="X_3447", classes=["center"])
X_3448 = isogonal_conjugate(model, A, B, C, X_3447, ID="X_3448", classes=["selected", "target"])
X_20 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(B)*cos(C)', ID="X_20", classes=["center", "incident"])
X_68 = eval_trilinear_point(model, A, B, C, 'cos(A)*sec(2*A)', ID="X_68", classes=["center", "incident"])
central_line(model, X_20, X_68, 20, 68, incident=True)
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_94 = eval_trilinear_point(model, A, B, C, 'csc(3*A)', ID="X_94", classes=["center", "incident"])
central_line(model, X_4, X_94, 4, 94, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_98 = eval_trilinear_point(model, A, B, C, 'sec(A + omega )', ID="X_98", classes=["center", "incident"])
central_line(model, X_2, X_98, 2, 98, incident=True)
return promote_point_to_top(model, X_3448)
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_3448 on the given reference triangle."""
model = create_model('X_3448 = ISOGONAL CONJUGATE OF X_3447')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03448(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-03448.json"))
write_center_svg(
model_acute,
here / "x-03448.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)