X322¶
ISOTOMIC CONJUGATE OF X84
X322 (ISOTOMIC CONJUGATE OF X84) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_322 = ISOTOMIC CONJUGATE OF X_84."""
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,
gergonne_point_of,
nagel_point_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00322(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_322 = ISOTOMIC CONJUGATE OF X_84 on reference triangle ABC."""
X_322 = eval_trilinear_point(model, A, B, C, '((-1 - cos(A) + cos(B) + cos(C))*(csc(A))**(2))', ID="X_322", classes=["selected", "target"])
X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
central_line(model, X_7, X_8, 7, 8, incident=True)
X_78 = eval_trilinear_point(model, A, B, C, '1/(1 - sec(A))', ID="X_78", classes=["center", "incident"])
X_273 = eval_trilinear_point(model, A, B, C, 'sec(A)*(sec(A/2))**(2)', ID="X_273", classes=["center", "incident"])
central_line(model, X_78, X_273, 78, 273, incident=True)
X_92 = eval_trilinear_point(model, A, B, C, 'csc(2*A)', ID="X_92", classes=["center", "incident"])
X_264 = eval_trilinear_point(model, A, B, C, 'csc(A)*csc(2*A)', ID="X_264", classes=["center", "incident"])
central_line(model, X_92, X_264, 92, 264, incident=True)
return promote_point_to_top(model, X_322)
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_322 on the given reference triangle."""
model = create_model('X_322 = ISOTOMIC CONJUGATE OF X_84')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00322(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-00322.json"))
write_center_svg(
model_acute,
here / "x-00322.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)