X927¶
ISOGONAL CONJUGATE OF X926
X927 (ISOGONAL CONJUGATE OF X926) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_927 = ISOGONAL CONJUGATE OF X_926."""
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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00927(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_927 = ISOGONAL CONJUGATE OF X_926 on reference triangle ABC."""
X_926 = eval_trilinear_point(model, A, B, C, 'a*(a - b - c)*(b - c)*(a*b + a*c - b**(2) - c**(2))', ID="X_926", classes=["center"])
X_927 = isogonal_conjugate(model, A, B, C, X_926, ID="X_927", classes=["selected", "target"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
central_line(model, X_101, X_514, 101, 514, incident=True)
X_103 = eval_trilinear_point(model, A, B, C, 'a/((a - b)*cot(C) + (a - c)*cot(B))', ID="X_103", classes=["center", "incident"])
X_516 = eval_trilinear_point(model, A, B, C, 'b*c*((a - b)*cot(C) + (a - c)*cot(B))', ID="X_516", classes=["center", "incident"])
central_line(model, X_103, X_516, 103, 516, incident=True)
X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
X_658 = eval_trilinear_point(model, A, B, C, '1/((1 + cos(A))*(cos(B) - cos(C)))', ID="X_658", classes=["center", "incident"])
central_line(model, X_109, X_658, 109, 658, incident=True)
return promote_point_to_top(model, X_927)
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_927 on the given reference triangle."""
model = create_model('X_927 = ISOGONAL CONJUGATE OF X_926')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00927(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-00927.json"))
write_center_svg(
model_acute,
here / "x-00927.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)