X410¶
EULER X29-1st-SUBSTITUTION POINT
X410 = crosspoint of PU(82)
X410 (EULER X29-1st-SUBSTITUTION POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_410 = EULER X_29-1st-SUBSTITUTION 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,
centroid_of,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
incenter_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00410(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_410 = EULER X_29-1st-SUBSTITUTION POINT on reference triangle ABC."""
X_410 = eval_barycentric_point(model, A, B, C, '(a + b) * (a + c) * (a**(2) + b**(2) - c**(2)) * (a**(2) - b**(2) + c**(2)) * (a**(8)*b**(2) - 3*a**(6)*b**(4) + 3*a**(4)*b**(6) - a**(2)*b**(8) + 3*a**(8)*b*c - a**(7)*b**(2)*c - 5*a**(6)*b**(3)*c + a**(5)*b**(4)*c + a**(4)*b**(5)*c + a**(3)*b**(6)*c + a**(2)*b**(7)*c - a*b**(8)*c + a**(8)*c**(2) - a**(7)*b*c**(2) - 3*a**(6)*b**(2)*c**(2) + a**(5)*b**(3)*c**(2) + 2*a**(4)*b**(4)*c**(2) + a**(3)*b**(5)*c**(2) + a**(2)*b**(6)*c**(2) - a*b**(7)*c**(2) - b**(8)*c**(2) - 5*a**(6)*b*c**(3) + a**(5)*b**(2)*c**(3) + 8*a**(4)*b**(3)*c**(3) - 2*a**(3)*b**(4)*c**(3) - a**(2)*b**(5)*c**(3) + a*b**(6)*c**(3) - 2*b**(7)*c**(3) - 3*a**(6)*c**(4) + a**(5)*b*c**(4) + 2*a**(4)*b**(2)*c**(4) - 2*a**(3)*b**(3)*c**(4) + a*b**(5)*c**(4) + b**(6)*c**(4) + a**(4)*b*c**(5) + a**(3)*b**(2)*c**(5) - a**(2)*b**(3)*c**(5) + a*b**(4)*c**(5) + 4*b**(5)*c**(5) + 3*a**(4)*c**(6) + a**(3)*b*c**(6) + a**(2)*b**(2)*c**(6) + a*b**(3)*c**(6) + b**(4)*c**(6) + a**(2)*b*c**(7) - a*b**(2)*c**(7) - 2*b**(3)*c**(7) - a**(2)*c**(8) - a*b*c**(8) - b**(2)*c**(8))', ID="X_410", classes=["selected", "target"])
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
central_line(model, X_2, X_3, 2, 3)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_1248 = point_from_barycentrics(model, A, B, C, -0.013970382, -0.017899094, 1.0318695, ID="X_1248", classes=["center", "incident"])
central_line(model, X_1, X_1248, 1, 1248, incident=True)
return promote_point_to_top(model, X_410)
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_410 on the given reference triangle."""
model = create_model('X_410 = EULER X_29-1st-SUBSTITUTION POINT')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00410(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-00410.json"))
write_center_svg(
model_acute,
here / "x-00410.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)