X3774¶
X39com[INVERSE(nT(bc, b²))]
X3774 (X39com[INVERSE(nT(bc, b²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3774 = X_39com[INVERSE(nT(bc, b²))]."""
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_barycentric_point,
eval_trilinear_point,
promote_point_to_top,
spieker_center_of,
)
from geometor.etc.render import write_center_svg
def construct_x_03774(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3774 = X_39com[INVERSE(nT(bc, b²))] on reference triangle ABC."""
X_3774 = eval_barycentric_point(model, A, B, C, '(a**(3)*(b + c)*(b**(2) + c**(2) + b*c))', ID="X_3774", classes=["selected", "target"])
X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
central_line(model, X_10, X_37, 10, 37, incident=True)
X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center", "incident"])
X_518 = eval_trilinear_point(model, A, B, C, '(a*b + a*c - b**(2) - c**(2))', ID="X_518", classes=["center", "incident"])
central_line(model, X_39, X_518, 39, 518, incident=True)
X_213 = eval_trilinear_point(model, A, B, C, '(b + c)*a**(2)', ID="X_213", classes=["center", "incident"])
X_872 = eval_trilinear_point(model, A, B, C, '(a*(b + c))**(2)', ID="X_872", classes=["center", "incident"])
central_line(model, X_213, X_872, 213, 872, incident=True)
return promote_point_to_top(model, X_3774)
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_3774 on the given reference triangle."""
model = create_model('X_3774 = X_39com[INVERSE(nT(bc, b²))]')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03774(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-03774.json"))
write_center_svg(
model_acute,
here / "x-03774.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)