X2442¶
ISOGONAL CONJUGATE OF X2416
X2442 (ISOGONAL CONJUGATE OF X2416) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2442 = ISOGONAL CONJUGATE OF X_2416."""
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,
orthocenter_of,
point_from_barycentrics,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_02442(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2442 = ISOGONAL CONJUGATE OF X_2416 on reference triangle ABC."""
X_2416 = point_from_barycentrics(model, A, B, C, 4.3751706, -3.2558729, -0.11929772, ID="X_2416", classes=["center"])
X_2442 = isogonal_conjugate(model, A, B, C, X_2416, ID="X_2442", classes=["selected", "target"])
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
central_line(model, X_4, X_6, 4, 6, incident=True)
X_112 = eval_trilinear_point(model, A, B, C, 'a/(sin(2*B) - sin(2*C))', ID="X_112", classes=["center", "incident"])
X_1301 = point_from_barycentrics(model, A, B, C, -0.036707118, 0.057047829, 0.97965929, ID="X_1301", classes=["center", "incident"])
central_line(model, X_112, X_1301, 112, 1301, incident=True)
return promote_point_to_top(model, X_2442)
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_2442 on the given reference triangle."""
model = create_model('X_2442 = ISOGONAL CONJUGATE OF X_2416')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02442(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-02442.json"))
write_center_svg(
model_acute,
here / "x-02442.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)