X2677¶
RS(X74, X100)
X2677 (RS(X74, X100)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2677 = RS(X_74, X_100)."""
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,
intersect_lines,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02677(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2677 = RS(X_74, X_100) on reference triangle ABC."""
X_119 = eval_trilinear_point(model, A, B, C, '(csc(A))*(-1 + cos(B) + cos(C))*(sin(2*B) + sin(2*C) + 2*(-1 + cos(A))*(sin(B) + sin(C)))', ID="X_119", classes=["center"])
X_517 = eval_trilinear_point(model, A, B, C, '-1 + cos(B) + cos(C)', ID="X_517", classes=["center"])
X_125 = eval_trilinear_point(model, A, B, C, 'cos(A)*(sin(B - C))**(2)', ID="X_125", classes=["center"])
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center"])
central_line(model, X_119, X_517, 119, 517)
central_line(model, X_125, X_523, 125, 523)
X_2677 = intersect_lines(model, X_119, X_517, X_125, X_523, ID="X_2677", classes=["selected", "target"])
X_673 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) + c**(2) - a*(b + c))', ID="X_673", classes=["center", "incident"])
X_2481 = eval_trilinear_point(model, A, B, C, '(b**(2)*c**(2)/(b**(2) + c**(2) - a*b - a*c))', ID="X_2481", classes=["center", "incident"])
central_line(model, X_673, X_2481, 673, 2481, incident=True)
return promote_point_to_top(model, X_2677)
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_2677 on the given reference triangle."""
model = create_model('X_2677 = RS(X_74, X_100)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02677(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-02677.json"))
write_center_svg(
model_acute,
here / "x-02677.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)