X2388¶
ISOGONAL CONJUGATE OF X2368
As the isogonal conjugate of a point on the circumcircle, X2388 lies on the line at infinity.
X2388 (ISOGONAL CONJUGATE OF X2368) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2388 = ISOGONAL CONJUGATE OF X_2368."""
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_02388(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2388 = ISOGONAL CONJUGATE OF X_2368 on reference triangle ABC."""
X_2368 = point_from_barycentrics(model, A, B, C, 0.14296379, 1.0928268, -0.23579055, ID="X_2368", classes=["center"])
X_2388 = isogonal_conjugate(model, A, B, C, X_2368, ID="X_2388", classes=["selected", "target"])
X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
X_213 = eval_trilinear_point(model, A, B, C, '(b + c)*a**(2)', ID="X_213", classes=["center", "incident"])
central_line(model, X_42, X_213, 42, 213, incident=True)
X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
X_511 = eval_trilinear_point(model, A, B, C, 'cos(A + omega )', ID="X_511", classes=["center", "incident"])
central_line(model, X_30, X_511, 30, 511, incident=True)
return promote_point_to_top(model, X_2388)
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_2388 on the given reference triangle."""
model = create_model('X_2388 = ISOGONAL CONJUGATE OF X_2368')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02388(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-02388.json"))
write_center_svg(
model_acute,
here / "x-02388.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)