X2965¶
BARYCENTRIC PRODUCT X61*X62
X2965 (BARYCENTRIC PRODUCT X61*X62) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2965 = BARYCENTRIC PRODUCT X_61*X_62."""
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,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
point_from_barycentrics,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_02965(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2965 = BARYCENTRIC PRODUCT X_61*X_62 on reference triangle ABC."""
X_2965 = eval_trilinear_point(model, A, B, C, 'sin(A)*sin(A + pi /6)*sin(A - pi /6)', ID="X_2965", classes=["selected", "target"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
central_line(model, X_3, X_6, 3, 6, incident=True)
X_53 = eval_trilinear_point(model, A, B, C, 'tan(A)*cos(B - C)', ID="X_53", classes=["center", "incident"])
X_112 = eval_trilinear_point(model, A, B, C, 'a/(sin(2*B) - sin(2*C))', ID="X_112", classes=["center", "incident"])
central_line(model, X_53, X_112, 53, 112, incident=True)
X_524 = eval_trilinear_point(model, A, B, C, '(2*a**(2) - b**(2) - c**(2))/a', ID="X_524", classes=["center", "incident"])
X_1238 = point_from_barycentrics(model, A, B, C, 0.61143196, 0.31562453, 0.072943511, ID="X_1238", classes=["center", "incident"])
central_line(model, X_524, X_1238, 524, 1238, incident=True)
return promote_point_to_top(model, X_2965)
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_2965 on the given reference triangle."""
model = create_model('X_2965 = BARYCENTRIC PRODUCT X_61*X_62')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02965(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-02965.json"))
write_center_svg(
model_acute,
here / "x-02965.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)