X1243¶
ISOGONAL CONJUGATE OF X1006
X1243 (ISOGONAL CONJUGATE OF X1006) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1243 = ISOGONAL CONJUGATE OF X_1006."""
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,
nine_point_center_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01243(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1243 = ISOGONAL CONJUGATE OF X_1006 on reference triangle ABC."""
X_1006 = point_from_barycentrics(model, A, B, C, 0.38295089, 0.36413043, 0.25291868, ID="X_1006", classes=["center"])
X_1243 = isogonal_conjugate(model, A, B, C, X_1006, ID="X_1243", classes=["selected", "target"])
X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
X_72 = eval_trilinear_point(model, A, B, C, '(b + c)*cot(A)', ID="X_72", classes=["center", "incident"])
central_line(model, X_5, X_72, 5, 72, incident=True)
X_28 = eval_trilinear_point(model, A, B, C, '(tan(A))/(b + c)', ID="X_28", classes=["center", "incident"])
X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center", "incident"])
central_line(model, X_28, X_54, 28, 54, incident=True)
X_71 = eval_trilinear_point(model, A, B, C, '(b + c)*cos(A)', ID="X_71", classes=["center", "incident"])
X_517 = eval_trilinear_point(model, A, B, C, '-1 + cos(B) + cos(C)', ID="X_517", classes=["center", "incident"])
central_line(model, X_71, X_517, 71, 517, incident=True)
return promote_point_to_top(model, X_1243)
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_1243 on the given reference triangle."""
model = create_model('X_1243 = ISOGONAL CONJUGATE OF X_1006')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01243(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-01243.json"))
write_center_svg(
model_acute,
here / "x-01243.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)