X2882¶
ISOGONAL CONJUGATE OF X2868
X2882 (ISOGONAL CONJUGATE OF X2868) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2882 = ISOGONAL CONJUGATE OF X_2868."""
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_02882(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2882 = ISOGONAL CONJUGATE OF X_2868 on reference triangle ABC."""
X_2868 = point_from_barycentrics(model, A, B, C, 0.88742966, -0.18862182, 0.30119216, ID="X_2868", classes=["center"])
X_2882 = isogonal_conjugate(model, A, B, C, X_2868, ID="X_2882", classes=["selected", "target"])
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)
X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
X_694 = eval_trilinear_point(model, A, B, C, 'a/(a**(4) - b**(2)*c**(2))', ID="X_694", classes=["center", "incident"])
central_line(model, X_25, X_694, 25, 694, incident=True)
X_315 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(4) + c**(4) - a**(4))', ID="X_315", classes=["center", "incident"])
X_670 = eval_trilinear_point(model, A, B, C, '1/(a**(3)*(b**(2) - c**(2)))', ID="X_670", classes=["center", "incident"])
central_line(model, X_315, X_670, 315, 670, incident=True)
return promote_point_to_top(model, X_2882)
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_2882 on the given reference triangle."""
model = create_model('X_2882 = ISOGONAL CONJUGATE OF X_2868')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02882(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-02882.json"))
write_center_svg(
model_acute,
here / "x-02882.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)