X913¶
POINT AGENA
X913 (POINT AGENA) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_913 = POINT AGENA."""
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_00913(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_913 = POINT AGENA on reference triangle ABC."""
X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center"])
X_27 = eval_trilinear_point(model, A, B, C, '(sec(A))/(b + c)', ID="X_27", classes=["center"])
X_662 = eval_trilinear_point(model, A, B, C, '1/(cot(B) - cot(C))', ID="X_662", classes=["center"])
central_line(model, X_19, X_101, 19, 101)
central_line(model, X_27, X_662, 27, 662)
X_913 = intersect_lines(model, X_19, X_101, X_27, X_662, ID="X_913", classes=["selected", "target"])
X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
X_692 = eval_trilinear_point(model, A, B, C, 'a**(2)/(b - c)', ID="X_692", classes=["center", "incident"])
central_line(model, X_25, X_692, 25, 692, incident=True)
return promote_point_to_top(model, X_913)
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_913 on the given reference triangle."""
model = create_model('X_913 = POINT AGENA')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00913(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-00913.json"))
write_center_svg(
model_acute,
here / "x-00913.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)