X759¶
EVEN (1, 3) CIRCUMCIRCLE POINT
X759 (EVEN (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_759 = EVEN (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,
incenter_of,
isogonal_conjugate,
promote_point_to_top,
spieker_center_of,
)
from geometor.etc.render import write_center_svg
def construct_x_00759(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_759 = EVEN (1, 3) CIRCUMCIRCLE POINT on reference triangle ABC."""
X_758 = eval_trilinear_point(model, A, B, C, 'a**(0)*(b**(3) + c**(3)) - a**(2)*(b**(1) + c**(1))', ID="X_758", classes=["center"])
X_759 = isogonal_conjugate(model, A, B, C, X_758, ID="X_759", classes=["selected", "target"])
X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
central_line(model, X_10, X_21, 10, 21, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_60 = eval_trilinear_point(model, A, B, C, '1/(1 + cos(B - C))', ID="X_60", classes=["center", "incident"])
central_line(model, X_1, X_60, 1, 60, incident=True)
X_58 = eval_trilinear_point(model, A, B, C, 'a/(b + c)', ID="X_58", classes=["center", "incident"])
X_65 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C)', ID="X_65", classes=["center", "incident"])
central_line(model, X_58, X_65, 58, 65, incident=True)
return promote_point_to_top(model, X_759)
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_759 on the given reference triangle."""
model = create_model('X_759 = EVEN (1, 3) CIRCUMCIRCLE POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00759(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-00759.json"))
write_center_svg(
model_acute,
here / "x-00759.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)