X3186¶
X25-CEVA CONJUGATE OF X4
X3186 (X25-CEVA CONJUGATE OF X4) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3186 = X_25-CEVA CONJUGATE OF X_4."""
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,
orthocenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03186(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3186 = X_25-CEVA CONJUGATE OF X_4 on reference triangle ABC."""
X_3186 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(2)*c**(2) - a**(2)*b**(2) - a**(2)*c**(2))/(b**(2) + c**(2) - a**(2)))', ID="X_3186", classes=["selected", "target"])
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
central_line(model, X_4, X_69, 4, 69, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_242 = eval_trilinear_point(model, A, B, C, '((sec(A))*((sin(A))**(2) - sin(B)*sin(C)))', ID="X_242", classes=["center", "incident"])
central_line(model, X_1, X_242, 1, 242, incident=True)
X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
X_385 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(4) - b**(2)*c**(2))', ID="X_385", classes=["center", "incident"])
central_line(model, X_25, X_385, 25, 385, incident=True)
return promote_point_to_top(model, X_3186)
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_3186 on the given reference triangle."""
model = create_model('X_3186 = X_25-CEVA CONJUGATE OF X_4')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03186(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-03186.json"))
write_center_svg(
model_acute,
here / "x-03186.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)