X3317¶
ISOGONAL CONJUGATE OF X3312
X3317 (ISOGONAL CONJUGATE OF X3312) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3317 = ISOGONAL CONJUGATE OF X_3312."""
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,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
isogonal_conjugate,
orthocenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03317(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3317 = ISOGONAL CONJUGATE OF X_3312 on reference triangle ABC."""
X_3312 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*sin(A)', ID="X_3312", classes=["center"])
X_3317 = isogonal_conjugate(model, A, B, C, X_3312, ID="X_3317", classes=["selected", "target"])
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_615 = eval_trilinear_point(model, A, B, C, '(a**(2) - 4*area )/a', ID="X_615", classes=["center", "incident"])
central_line(model, X_4, X_615, 4, 615, incident=True)
X_486 = eval_trilinear_point(model, A, B, C, 'sec(A + pi /4)', ID="X_486", classes=["center", "incident"])
X_631 = eval_trilinear_point(model, A, B, C, '2*cos(A) + cos(B)*cos(C)', ID="X_631", classes=["center", "incident"])
central_line(model, X_486, X_631, 486, 631, incident=True)
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_1132 = eval_trilinear_point(model, A, B, C, '1/(sin(A) - 2*cos(A))', ID="X_1132", classes=["center", "incident"])
central_line(model, X_3, X_1132, 3, 1132, incident=True)
return promote_point_to_top(model, X_3317)
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_3317 on the given reference triangle."""
model = create_model('X_3317 = ISOGONAL CONJUGATE OF X_3312')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03317(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-03317.json"))
write_center_svg(
model_acute,
here / "x-03317.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)