X2759¶
SR(X106, X111)
X2759 (SR(X106, X111)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2759 = SR(X_106, X_111)."""
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_02759(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2759 = SR(X_106, X_111) on reference triangle ABC."""
X_106 = eval_trilinear_point(model, A, B, C, 'a/(2*a - b - c)', ID="X_106", classes=["center"])
X_524 = eval_trilinear_point(model, A, B, C, '(2*a**(2) - b**(2) - c**(2))/a', ID="X_524", classes=["center"])
X_111 = eval_trilinear_point(model, A, B, C, 'a/(2*a**(2) - b**(2) - c**(2))', ID="X_111", classes=["center"])
X_519 = eval_trilinear_point(model, A, B, C, '(2*a - b - c)/a', ID="X_519", classes=["center"])
central_line(model, X_106, X_524, 106, 524)
central_line(model, X_111, X_519, 111, 519)
X_2759 = intersect_lines(model, X_106, X_524, X_111, X_519, ID="X_2759", classes=["selected", "target"])
X_1293 = eval_trilinear_point(model, A, B, C, '(a/((b - c)*(3*a - b - c)))', ID="X_1293", classes=["center", "incident"])
X_1499 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) - c**(2))*(b**(2) + c**(2) - 5*a**(2))', ID="X_1499", classes=["center", "incident"])
central_line(model, X_1293, X_1499, 1293, 1499, incident=True)
return promote_point_to_top(model, X_2759)
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_2759 on the given reference triangle."""
model = create_model('X_2759 = SR(X_106, X_111)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02759(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-02759.json"))
write_center_svg(
model_acute,
here / "x-02759.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)