X3573¶
TRILINEAR PRODUCT X6*X3570
X3573 (TRILINEAR PRODUCT X6*X3570) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3573 = TRILINEAR PRODUCT X_6*X_3570."""
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,
incenter_of,
isogonal_conjugate,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03573(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3573 = TRILINEAR PRODUCT X_6*X_3570 on reference triangle ABC."""
X_876 = point_from_barycentrics(model, A, B, C, 0.024662513, 1.0062305, -0.030893043, ID="X_876", classes=["center"])
X_3573 = isogonal_conjugate(model, A, B, C, X_876, ID="X_3573", classes=["selected", "target"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
central_line(model, X_1, X_21, 1, 21, incident=True)
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
central_line(model, X_100, X_101, 100, 101, incident=True)
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
central_line(model, X_99, X_110, 99, 110, incident=True)
return promote_point_to_top(model, X_3573)
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_3573 on the given reference triangle."""
model = create_model('X_3573 = TRILINEAR PRODUCT X_6*X_3570')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03573(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-03573.json"))
write_center_svg(
model_acute,
here / "x-03573.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)