X3787¶
X1196com[INVERSE(nT(a², a² - c²))]
X3787 (X1196com[INVERSE(nT(a², a² - c²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3787 = X_1196com[INVERSE(nT(a², a² - 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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03787(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3787 = X_1196com[INVERSE(nT(a², a² - c²))] on reference triangle ABC."""
X_3787 = eval_barycentric_point(model, A, B, C, '(a**(2)*(b**(2) + c**(2))*(b**(2) + c**(2) - 3*a**(2)))', ID="X_3787", classes=["selected", "target"])
X_184 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A)', ID="X_184", classes=["center", "incident"])
X_187 = eval_trilinear_point(model, A, B, C, 'a*(2*a**(2) - b**(2) - c**(2))', ID="X_187", classes=["center", "incident"])
central_line(model, X_184, X_187, 184, 187, incident=True)
X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
X_394 = eval_trilinear_point(model, A, B, C, 'cos(A)*cot(A)', ID="X_394", classes=["center", "incident"])
central_line(model, X_32, X_394, 32, 394, incident=True)
X_511 = eval_trilinear_point(model, A, B, C, 'cos(A + omega )', ID="X_511", classes=["center", "incident"])
X_1196 = eval_trilinear_point(model, A, B, C, '(a*(b**(4) + c**(4) + a**(2)*b**(2) + a**(2)*c**(2) - 2*b**(2)*c**(2)))', ID="X_1196", classes=["center", "incident"])
central_line(model, X_511, X_1196, 511, 1196, incident=True)
return promote_point_to_top(model, X_3787)
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_3787 on the given reference triangle."""
model = create_model('X_3787 = X_1196com[INVERSE(nT(a², a² - c²))]')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03787(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-03787.json"))
write_center_svg(
model_acute,
here / "x-03787.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)