X2700¶
SR(X98, X101)
X2700 (SR(X98, X101)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2700 = SR(X_98, X_101)."""
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_barycentric_point,
eval_trilinear_point,
intersect_lines,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02700(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2700 = SR(X_98, X_101) on reference triangle ABC."""
X_107 = eval_trilinear_point(model, A, B, C, '1/(cos(A)*(sin(2*B) - sin(2*C)))', ID="X_107", classes=["center"])
X_423 = eval_barycentric_point(model, A, B, C, '(a + b) * (a + c) * (a**(2) + b**(2) - c**(2)) * (a**(2) + a*b - b**(2) + a*c - b*c - c**(2)) * (a**(2) - b**(2) + c**(2))', ID="X_423", classes=["center"])
X_98 = eval_trilinear_point(model, A, B, C, 'sec(A + omega )', ID="X_98", classes=["center"])
X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center"])
central_line(model, X_107, X_423, 107, 423)
central_line(model, X_98, X_514, 98, 514)
X_2700 = intersect_lines(model, X_107, X_423, X_98, X_514, ID="X_2700", classes=["selected", "target"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
X_511 = eval_trilinear_point(model, A, B, C, 'cos(A + omega )', ID="X_511", classes=["center", "incident"])
central_line(model, X_101, X_511, 101, 511, incident=True)
return promote_point_to_top(model, X_2700)
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_2700 on the given reference triangle."""
model = create_model('X_2700 = SR(X_98, X_101)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02700(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-02700.json"))
write_center_svg(
model_acute,
here / "x-02700.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)