X3792¶
X190com[INVERSE(nT(bc, c²))]
X3792 (X190com[INVERSE(nT(bc, c²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3792 = X_190com[INVERSE(nT(bc, c²))]."""
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,
)
from geometor.etc.render import write_center_svg
def construct_x_03792(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3792 = X_190com[INVERSE(nT(bc, c²))] on reference triangle ABC."""
X_3792 = eval_barycentric_point(model, A, B, C, '(a**(2)*(a**(2) - b**(2) - c**(2) + b*c)*(b**(2) + c**(2) + b*c))', ID="X_3792", classes=["selected", "target"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_674 = eval_trilinear_point(model, A, B, C, '(a*(b**(3) + c**(3) - a*(b**(2) + c**(2))))', ID="X_674", classes=["center", "incident"])
central_line(model, X_1, X_674, 1, 674, incident=True)
X_238 = eval_trilinear_point(model, A, B, C, 'a**(2) - b*c', ID="X_238", classes=["center", "incident"])
X_511 = eval_trilinear_point(model, A, B, C, 'cos(A + omega )', ID="X_511", classes=["center", "incident"])
central_line(model, X_238, X_511, 238, 511, incident=True)
X_320 = eval_trilinear_point(model, A, B, C, '(1 - 2*cos(A))/a**(2)', ID="X_320", classes=["center", "incident"])
X_758 = eval_trilinear_point(model, A, B, C, 'a**(0)*(b**(3) + c**(3)) - a**(2)*(b**(1) + c**(1))', ID="X_758", classes=["center", "incident"])
central_line(model, X_320, X_758, 320, 758, incident=True)
return promote_point_to_top(model, X_3792)
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_3792 on the given reference triangle."""
model = create_model('X_3792 = X_190com[INVERSE(nT(bc, c²))]')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03792(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-03792.json"))
write_center_svg(
model_acute,
here / "x-03792.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)