X2331¶
X2-ISOCONJUGATE OF X1433
X2331 (X2-ISOCONJUGATE OF X1433) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2331 = X_2-ISOCONJUGATE OF X_1433."""
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,
crosspoint,
eval_trilinear_point,
incenter_of,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_02331(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2331 = X_2-ISOCONJUGATE OF X_1433 on reference triangle ABC."""
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
X_223 = eval_trilinear_point(model, A, B, C, '(tan(A/2))*(cos(B) + cos(C) - cos(A) - 1)', ID="X_223", classes=["center"])
X_2331 = crosspoint(model, A, B, C, X_1, X_223, ID="X_2331", classes=["selected", "target"])
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
central_line(model, X_6, X_19, 6, 19, incident=True)
X_33 = eval_trilinear_point(model, A, B, C, '1 + sec(A)', ID="X_33", classes=["center", "incident"])
X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
central_line(model, X_33, X_42, 33, 42, incident=True)
X_55 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)', ID="X_55", classes=["center", "incident"])
X_204 = eval_trilinear_point(model, A, B, C, '((tan(A))*(tan(B) + tan(C) - tan(A)))', ID="X_204", classes=["center", "incident"])
central_line(model, X_55, X_204, 55, 204, incident=True)
return promote_point_to_top(model, X_2331)
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_2331 on the given reference triangle."""
model = create_model('X_2331 = X_2-ISOCONJUGATE OF X_1433')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02331(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-02331.json"))
write_center_svg(
model_acute,
here / "x-02331.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)