X2714¶
SR(X99, X108)
X2714 (SR(X99, X108)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2714 = SR(X_99, X_108)."""
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,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
point_from_barycentrics,
promote_point_to_top,
reflection_in_point,
)
from geometor.etc.render import write_center_svg
def construct_x_02714(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2714 = SR(X_99, X_108) on reference triangle ABC."""
X_2707 = point_from_barycentrics(model, A, B, C, 1.0414086, 0.22924055, -0.27064911, ID="X_2707", classes=["center"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
X_2714 = reflection_in_point(model, X_2707, X_3, ID="X_2714", classes=["selected", "target"], guide=False)
X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
X_521 = eval_trilinear_point(model, A, B, C, '(sec(B) - sec(C))*(csc(A))', ID="X_521", classes=["center", "incident"])
central_line(model, X_99, X_521, 99, 521, incident=True)
X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", classes=["center", "incident"])
X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
central_line(model, X_108, X_512, 108, 512, incident=True)
X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
X_810 = eval_trilinear_point(model, A, B, C, 'sin(2*A)*((cos(B))**(2) - (cos(C))**(2))', ID="X_810", classes=["center", "incident"])
central_line(model, X_109, X_810, 109, 810, incident=True)
return promote_point_to_top(model, X_2714)
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_2714 on the given reference triangle."""
model = create_model('X_2714 = SR(X_99, X_108)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02714(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-02714.json"))
write_center_svg(
model_acute,
here / "x-02714.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)