X2628¶
MIDPOINT OF PU(73)
X2628 is the midpoint of pu(73).
X2628 (MIDPOINT OF PU(73)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2628 = MIDPOINT OF PU(73)."""
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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02628(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2628 = MIDPOINT OF PU(73) on reference triangle ABC."""
X_2628 = eval_trilinear_point(model, A, B, C, '((a*cot(B - A) + b*cot(C - B) + c*cot(A - C))*cot(C - A) + (a*cot(C - A) + b*cot(A - B) + c*cot(B - C))*cot(B - A))', ID="X_2628", classes=["selected", "target"])
X_1109 = eval_trilinear_point(model, A, B, C, '(sin(B - C))**(2)', ID="X_1109", classes=["center", "incident"])
X_2624 = eval_trilinear_point(model, A, B, C, 'cot(A - B) + cot(A - C)', ID="X_2624", classes=["center", "incident"])
central_line(model, X_1109, X_2624, 1109, 2624, incident=True)
return promote_point_to_top(model, X_2628)
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_2628 on the given reference triangle."""
model = create_model('X_2628 = MIDPOINT OF PU(73)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02628(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-02628.json"))
write_center_svg(
model_acute,
here / "x-02628.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)