X731¶
EVEN (- 2, 1) CIRCUMCIRCLE POINT
X731 (EVEN (- 2, 1) CIRCUMCIRCLE POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_731 = EVEN (- 2, 1) 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,
incenter_of,
isogonal_conjugate,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00731(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_731 = EVEN (- 2, 1) CIRCUMCIRCLE POINT on reference triangle ABC."""
X_730 = eval_trilinear_point(model, A, B, C, '(a **(-3)*(b**(1) + c**(1)) - a**(0)*(b **(-2) + c **(-2)))', ID="X_730", classes=["center"])
X_731 = isogonal_conjugate(model, A, B, C, X_730, ID="X_731", classes=["selected", "target"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_789 = eval_trilinear_point(model, A, B, C, 'a **(- 2)/(b**(3) - c**(3))', ID="X_789", classes=["center", "incident"])
central_line(model, X_1, X_789, 1, 789, incident=True)
X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
X_825 = eval_trilinear_point(model, A, B, C, '1/(a**(-1)*(b**(3) - c**(3)) + a**(2)*(b**(0) - c**(0)))', ID="X_825", classes=["center", "incident"])
central_line(model, X_32, X_825, 32, 825, incident=True)
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
X_869 = eval_trilinear_point(model, A, B, C, '(a**(2)*(b**(2) + c**(2) + b*c))', ID="X_869", classes=["center", "incident"])
central_line(model, X_100, X_869, 100, 869, incident=True)
return promote_point_to_top(model, X_731)
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_731 on the given reference triangle."""
model = create_model('X_731 = EVEN (- 2, 1) CIRCUMCIRCLE POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00731(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-00731.json"))
write_center_svg(
model_acute,
here / "x-00731.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)