X741¶
EVEN (- 1, 1) CIRCUMCIRCLE POINT
X741 (EVEN (- 1, 1) CIRCUMCIRCLE POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_741 = EVEN (- 1, 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_00741(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_741 = EVEN (- 1, 1) CIRCUMCIRCLE POINT on reference triangle ABC."""
X_740 = eval_trilinear_point(model, A, B, C, 'a **(-2)*(b**(1) + c**(1)) - a**(0)*(b **(-1) + c **(-1))', ID="X_740", classes=["center"])
X_741 = isogonal_conjugate(model, A, B, C, X_740, ID="X_741", classes=["selected", "target"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
central_line(model, X_1, X_99, 1, 99, incident=True)
X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
central_line(model, X_42, X_81, 42, 81, incident=True)
X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
central_line(model, X_31, X_110, 31, 110, incident=True)
return promote_point_to_top(model, X_741)
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_741 on the given reference triangle."""
model = create_model('X_741 = EVEN (- 1, 1) CIRCUMCIRCLE POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00741(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-00741.json"))
write_center_svg(
model_acute,
here / "x-00741.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)