X1696¶
POINT ELECTRA
X1696 (POINT ELECTRA) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1696 = POINT ELECTRA."""
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,
mittenpunkt_of,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_01696(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1696 = POINT ELECTRA on reference triangle ABC."""
X_1696 = eval_trilinear_point(model, A, B, C, '(b + c - a*cos(A) + r*sin(A))', ID="X_1696", classes=["selected", "target"])
X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
central_line(model, X_19, X_25, 19, 25, incident=True)
X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
central_line(model, X_9, X_56, 9, 56, incident=True)
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
X_1201 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) + c**(2) - 2*b*c + a*b + a*c))', ID="X_1201", classes=["center", "incident"])
central_line(model, X_6, X_1201, 6, 1201, incident=True)
return promote_point_to_top(model, X_1696)
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_1696 on the given reference triangle."""
model = create_model('X_1696 = POINT ELECTRA')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01696(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-01696.json"))
write_center_svg(
model_acute,
here / "x-01696.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)