X914¶
ISOGONAL CONJUGATE OF X913
X914 (ISOGONAL CONJUGATE OF X913) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_914 = ISOGONAL CONJUGATE OF X_913."""
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,
nagel_point_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00914(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_914 = ISOGONAL CONJUGATE OF X_913 on reference triangle ABC."""
X_913 = point_from_barycentrics(model, A, B, C, -0.12730133, 0.53064554, 0.59665579, ID="X_913", classes=["center"])
X_914 = isogonal_conjugate(model, A, B, C, X_913, ID="X_914", classes=["selected", "target"])
X_63 = eval_trilinear_point(model, A, B, C, 'cot(A)', ID="X_63", classes=["center", "incident"])
X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
central_line(model, X_63, X_69, 63, 69, incident=True)
X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
X_224 = eval_trilinear_point(model, A, B, C, '(cot(B)*(cos(B/2))**(2) + cot(C)*(cos(C/2))**(2) - cot(A)*(cos(A/2))**(2))*cot(A)', ID="X_224", classes=["center", "incident"])
central_line(model, X_8, X_224, 8, 224, incident=True)
X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
X_661 = eval_trilinear_point(model, A, B, C, 'cot(B) - cot(C)', ID="X_661", classes=["center", "incident"])
central_line(model, X_514, X_661, 514, 661, incident=True)
return promote_point_to_top(model, X_914)
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_914 on the given reference triangle."""
model = create_model('X_914 = ISOGONAL CONJUGATE OF X_913')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00914(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-00914.json"))
write_center_svg(
model_acute,
here / "x-00914.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)