X711¶
EVEN (- 4, 4) CIRCUMCIRCLE POINT
X711 (EVEN (- 4, 4) CIRCUMCIRCLE POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_711 = EVEN (- 4, 4) CIRCUMCIRCLE 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,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
isogonal_conjugate,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00711(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_711 = EVEN (- 4, 4) CIRCUMCIRCLE POINT on reference triangle ABC."""
X_710 = eval_trilinear_point(model, A, B, C, '(a **(-5)*(b**(4) + c**(4)) - a**(3)*(b **(-4) + c **(-4)))', ID="X_710", classes=["center"])
X_711 = isogonal_conjugate(model, A, B, C, X_710, ID="X_711", classes=["selected", "target"])
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
X_695 = eval_trilinear_point(model, A, B, C, 'a/(a**(4) + b**(2)*c**(2))', ID="X_695", classes=["center", "incident"])
central_line(model, X_99, X_695, 99, 695, incident=True)
return promote_point_to_top(model, X_711)
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_711 on the given reference triangle."""
model = create_model('X_711 = EVEN (- 4, 4) CIRCUMCIRCLE POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00711(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-00711.json"))
write_center_svg(
model_acute,
here / "x-00711.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)