X3049¶
INTERSECTION X6X_523∩X520X_647
X3049 (INTERSECTION X6X_523∩X520X_647) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3049 = INTERSECTION X_6X_523∩X_520X_647."""
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,
promote_point_to_top,
reflection_in_point,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_03049(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3049 = INTERSECTION X_6X_523∩X_520X_647 on reference triangle ABC."""
X_2451 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) - c**(2))*(a**(4) + 2*b**(2)*c**(2) - a**(2)*b**(2)- a**(2)*c**(2)))', ID="X_2451", classes=["center"])
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
X_3049 = reflection_in_point(model, X_2451, X_6, ID="X_3049", classes=["selected", "target"], guide=False)
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
central_line(model, X_6, X_523, 6, 523, incident=True)
X_520 = eval_trilinear_point(model, A, B, C, '(cos(A))*(sin(2*B) - sin(2*C))', ID="X_520", classes=["center", "incident"])
X_647 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))*(b**(2) + c**(2) - a**(2))', ID="X_647", classes=["center", "incident"])
central_line(model, X_520, X_647, 520, 647, incident=True)
X_669 = eval_trilinear_point(model, A, B, C, 'a**(3)*(b**(2) - c**(2))', ID="X_669", classes=["center", "incident"])
X_688 = eval_trilinear_point(model, A, B, C, '(a**(3)*(b**(4) - c**(4)))', ID="X_688", classes=["center", "incident"])
central_line(model, X_669, X_688, 669, 688, incident=True)
return promote_point_to_top(model, X_3049)
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_3049 on the given reference triangle."""
model = create_model('X_3049 = INTERSECTION X_6X_523∩X_520X_647')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03049(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-03049.json"))
write_center_svg(
model_acute,
here / "x-03049.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)