X831¶
o-(1, 3) CIRCUMCIRCLE POINT
X831 (o-(1, 3) CIRCUMCIRCLE POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_831 = o-(1, 3) 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_00831(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_831 = o-(1, 3) CIRCUMCIRCLE POINT on reference triangle ABC."""
X_830 = eval_trilinear_point(model, A, B, C, '(a**(0)*(b**(3) - c**(3)) + a**(2)*(b**(1) - c**(1)))', ID="X_830", classes=["center"])
X_831 = isogonal_conjugate(model, A, B, C, X_830, ID="X_831", classes=["selected", "target"])
X_662 = eval_trilinear_point(model, A, B, C, '1/(cot(B) - cot(C))', ID="X_662", classes=["center", "incident"])
X_827 = eval_trilinear_point(model, A, B, C, '1/(a**(-1)*(b**(4) - c**(4)) + a**(3)*(b**(0) - c**(0)))', ID="X_827", classes=["center", "incident"])
central_line(model, X_662, X_827, 662, 827, incident=True)
return promote_point_to_top(model, X_831)
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_831 on the given reference triangle."""
model = create_model('X_831 = o-(1, 3) CIRCUMCIRCLE POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00831(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-00831.json"))
write_center_svg(
model_acute,
here / "x-00831.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)