X3365¶
SIN(A - 5π/12) POINT
X3365 (SIN(A - 5π/12) POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3365 = SIN(A - 5π/12) POINT."""
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,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_03365(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3365 = SIN(A - 5π/12) POINT on reference triangle ABC."""
X_3365 = eval_trilinear_point(model, A, B, C, 'sin(A - 5*pi /12)', ID="X_3365", 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_14 = eval_trilinear_point(model, A, B, C, 'csc(A - pi /3)', ID="X_14", classes=["center", "incident"])
X_486 = eval_trilinear_point(model, A, B, C, 'sec(A + pi /4)', ID="X_486", classes=["center", "incident"])
central_line(model, X_14, X_486, 14, 486, incident=True)
X_17 = eval_trilinear_point(model, A, B, C, 'csc(A + pi /6)', ID="X_17", classes=["center", "incident"])
X_485 = eval_trilinear_point(model, A, B, C, 'sec(A - pi /4)', ID="X_485", classes=["center", "incident"])
central_line(model, X_17, X_485, 17, 485, incident=True)
return promote_point_to_top(model, X_3365)
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_3365 on the given reference triangle."""
model = create_model('X_3365 = SIN(A - 5π/12) POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03365(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-03365.json"))
write_center_svg(
model_acute,
here / "x-03365.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)