X556¶
(X1,X75)-ANSWER TO QUESTION A
X556 ((X1,X75)-ANSWER TO QUESTION A) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_556 = (X_1,X_75)-ANSWER TO QUESTION A."""
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,
isotomic_conjugate,
nagel_point_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00556(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_556 = (X_1,X_75)-ANSWER TO QUESTION A on reference triangle ABC."""
X_174 = eval_trilinear_point(model, A, B, C, 'sec(A/2)', ID="X_174", classes=["center"])
X_556 = isotomic_conjugate(model, A, B, C, X_174, ID="X_556", classes=["selected", "target"])
X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
X_177 = eval_trilinear_point(model, A, B, C, '(cos(B/2) + cos(C/2))*sec(A/2)', ID="X_177", classes=["center", "incident"])
central_line(model, X_8, X_177, 8, 177, incident=True)
X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
X_234 = eval_trilinear_point(model, A, B, C, '((cos(B/2) + cos(C/2))*(cos(B/2)*cos(C/2))**(2))', ID="X_234", classes=["center", "incident"])
central_line(model, X_75, X_234, 75, 234, incident=True)
X_312 = eval_trilinear_point(model, A, B, C, '(b + c - a)*b**(2)*c**(2)', ID="X_312", classes=["center", "incident"])
X_2090 = eval_trilinear_point(model, A, B, C, '((sin(B/2) + sin(C/2))*csc(A))', ID="X_2090", classes=["center", "incident"])
central_line(model, X_312, X_2090, 312, 2090, incident=True)
return promote_point_to_top(model, X_556)
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_556 on the given reference triangle."""
model = create_model('X_556 = (X_1,X_75)-ANSWER TO QUESTION A')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00556(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-00556.json"))
write_center_svg(
model_acute,
here / "x-00556.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)