X3754¶
X5com[INVERSE(n(HEXYL TRIANGLE))]
X3754 (X5com[INVERSE(n(HEXYL TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3754 = X_5com[INVERSE(n(HEXYL 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,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
eval_trilinear_point,
incenter_of,
promote_point_to_top,
spieker_center_of,
)
from geometor.etc.render import write_center_svg
def construct_x_03754(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3754 = X_5com[INVERSE(n(HEXYL TRIANGLE))] on reference triangle ABC."""
X_3754 = eval_barycentric_point(model, A, B, C, 'a*(b + c)*(a**(2) - b**(2) - c**(2) + 3*b*c)', ID="X_3754", classes=["selected", "target"])
X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center", "incident"])
central_line(model, X_10, X_12, 10, 12, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_88 = eval_trilinear_point(model, A, B, C, '1/(b + c - 2*a)', ID="X_88", classes=["center", "incident"])
central_line(model, X_1, X_88, 1, 88, incident=True)
X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
X_484 = eval_trilinear_point(model, A, B, C, '1 + 2*(cos(A) - cos(B) - cos(C))', ID="X_484", classes=["center", "incident"])
central_line(model, X_21, X_484, 21, 484, incident=True)
return promote_point_to_top(model, X_3754)
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_3754 on the given reference triangle."""
model = create_model('X_3754 = X_5com[INVERSE(n(HEXYL TRIANGLE))]')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03754(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-03754.json"))
write_center_svg(
model_acute,
here / "x-03754.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)