X3417¶
X1-VERTEX CONJUGATE OF X4
X3417 (X1-VERTEX CONJUGATE OF X4) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3417 = X_1-VERTEX 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,
isogonal_conjugate,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03417(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3417 = X_1-VERTEX CONJUGATE OF X_4 on reference triangle ABC."""
X_355 = eval_trilinear_point(model, A, B, C, 'a*cos(A) - (b + c)*cos(B - C)', ID="X_355", classes=["center"])
X_3417 = isogonal_conjugate(model, A, B, C, X_355, ID="X_3417", classes=["selected", "target"])
X_24 = eval_trilinear_point(model, A, B, C, 'sec(A)*cos(2*A)', ID="X_24", classes=["center", "incident"])
X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
central_line(model, X_24, X_56, 24, 56, incident=True)
X_36 = eval_trilinear_point(model, A, B, C, '1 - 2*cos(A)', ID="X_36", classes=["center", "incident"])
X_47 = eval_trilinear_point(model, A, B, C, 'cos(2*A)', ID="X_47", classes=["center", "incident"])
central_line(model, X_36, X_47, 36, 47, incident=True)
X_48 = eval_trilinear_point(model, A, B, C, 'tan(B) + tan(C)', ID="X_48", classes=["center", "incident"])
X_573 = eval_trilinear_point(model, A, B, C, 'cos(A + U)', ID="X_573", classes=["center", "incident"])
central_line(model, X_48, X_573, 48, 573, incident=True)
return promote_point_to_top(model, X_3417)
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_3417 on the given reference triangle."""
model = create_model('X_3417 = X_1-VERTEX CONJUGATE OF X_4')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03417(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-03417.json"))
write_center_svg(
model_acute,
here / "x-03417.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)