X2859¶
SM(X100, X112)
X2859 (SM(X100, X112)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2859 = SM(X_100, X_112)."""
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,
intersect_lines,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02859(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2859 = SM(X_100, X_112) on reference triangle ABC."""
X_112 = eval_trilinear_point(model, A, B, C, 'a/(sin(2*B) - sin(2*C))', ID="X_112", classes=["center"])
X_693 = eval_trilinear_point(model, A, B, C, '(b - c)/a**(2)', ID="X_693", classes=["center"])
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center"])
X_3267 = eval_trilinear_point(model, A, B, C, '((b**(2) - c**(2))*(b**(2) + c**(2) - a**(2))/a**(3))', ID="X_3267", classes=["center"])
central_line(model, X_112, X_693, 112, 693)
central_line(model, X_100, X_3267, 100, 3267)
X_2859 = intersect_lines(model, X_112, X_693, X_100, X_3267, ID="X_2859", classes=["selected", "target"])
return promote_point_to_top(model, X_2859)
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_2859 on the given reference triangle."""
model = create_model('X_2859 = SM(X_100, X_112)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02859(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-02859.json"))
write_center_svg(
model_acute,
here / "x-02859.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)