X911¶
POINT ADHARA
X911 (POINT ADHARA) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_911 = POINT ADHARA."""
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_barycentric_point,
eval_trilinear_point,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00911(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_911 = POINT ADHARA on reference triangle ABC."""
X_911 = eval_barycentric_point(model, A, B, C, 'a**(3) / (2*a**(3) - a**(2)*(b + c) - (b - c)**(2)*(b + c))', ID="X_911", classes=["selected", "target"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", 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_3, X_101, 3, 101, incident=True)
X_241 = eval_trilinear_point(model, A, B, C, '(cos(B/2))**(4) - ((cos(A/2))**(2))*((cos(B/2))**(2) +(cos(C/2))**(2)) + (cos(C/2))**(4)', ID="X_241", classes=["center", "incident"])
X_294 = eval_trilinear_point(model, A, B, C, '((b + c - a)/(b**(2) + c**(2) - a*b - a*c))', ID="X_294", classes=["center", "incident"])
central_line(model, X_241, X_294, 241, 294, incident=True)
X_41 = eval_trilinear_point(model, A, B, C, 'a**(2)*(b + c - a)', ID="X_41", classes=["center", "incident"])
X_603 = eval_trilinear_point(model, A, B, C, '(cos(A))**(2) - cos(A)', ID="X_603", classes=["center", "incident"])
central_line(model, X_41, X_603, 41, 603, incident=True)
return promote_point_to_top(model, X_911)
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_911 on the given reference triangle."""
model = create_model('X_911 = POINT ADHARA')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00911(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-00911.json"))
write_center_svg(
model_acute,
here / "x-00911.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)