X2797¶
ISOGONAL CONJUGATE OF X2713
X2797 (ISOGONAL CONJUGATE OF X2713) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2797 = ISOGONAL CONJUGATE OF X_2713."""
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_02797(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2797 = ISOGONAL CONJUGATE OF X_2713 on reference triangle ABC."""
X_2713 = point_from_barycentrics(model, A, B, C, -0.17278097, 0.50413526, 0.6686457, ID="X_2713", classes=["center"])
X_2797 = isogonal_conjugate(model, A, B, C, X_2713, ID="X_2797", classes=["selected", "target"])
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
X_107 = eval_trilinear_point(model, A, B, C, '1/(cos(A)*(sin(2*B) - sin(2*C)))', ID="X_107", classes=["center", "incident"])
central_line(model, X_99, X_107, 99, 107, incident=True)
X_115 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) - c**(2))**(2)', ID="X_115", classes=["center", "incident"])
X_122 = eval_trilinear_point(model, A, B, C, '(b**(2) - c**(2))**(2)*(cos(A) - cos(B)*cos(C))*(cot(A))**(2)', ID="X_122", classes=["center", "incident"])
central_line(model, X_115, X_122, 115, 122, incident=True)
X_114 = eval_trilinear_point(model, A, B, C, 'b*c*(b*sec(B + omega ) + c*sec(C + omega ))', ID="X_114", classes=["center", "incident"])
X_133 = eval_trilinear_point(model, A, B, C, '(sec(A))*((sin(2*B) - sin(2*C))**(2) + (sin(2*A))*(sin(2*B)) + (sin(2*A))*(sin(2*C)) - 2*(sin(2*B))*(sin(2*C)))*(2*sin(2*A) - sin(2*B) - sin(2*C))', ID="X_133", classes=["center", "incident"])
central_line(model, X_114, X_133, 114, 133, incident=True)
return promote_point_to_top(model, X_2797)
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_2797 on the given reference triangle."""
model = create_model('X_2797 = ISOGONAL CONJUGATE OF X_2713')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02797(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-02797.json"))
write_center_svg(
model_acute,
here / "x-02797.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)