X3837¶
X2254com(3rd EULER TRIANGLE)
X3837 = isotomic conjugate of X8709
X3837 (X2254com(3rd EULER TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3837 = X_2254com(3rd EULER TRIANGLE)."""
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,
centroid_of,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
eval_trilinear_point,
feuerbach_point_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03837(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3837 = X_2254com(3rd EULER TRIANGLE) on reference triangle ABC."""
X_3837 = eval_barycentric_point(model, A, B, C, '((b - c)*(a*b**(2) + a*c**(2) - b**(2)*c - b*c**(2)))', ID="X_3837", classes=["selected", "target"])
X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
X_244 = eval_trilinear_point(model, A, B, C, '(b - c)**(2)', ID="X_244", classes=["center", "incident"])
central_line(model, X_11, X_244, 11, 244, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_659 = eval_trilinear_point(model, A, B, C, '(a**(2) - b*c)*(b - c)', ID="X_659", classes=["center", "incident"])
central_line(model, X_2, X_659, 2, 659, incident=True)
X_325 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)', ID="X_325", classes=["center", "incident"])
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
central_line(model, X_325, X_523, 325, 523, incident=True)
return promote_point_to_top(model, X_3837)
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_3837 on the given reference triangle."""
model = create_model('X_3837 = X_2254com(3rd EULER TRIANGLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03837(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-03837.json"))
write_center_svg(
model_acute,
here / "x-03837.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)