X3043¶
INTERSECTION X4X_110∩X74X_184
X3043 (INTERSECTION X4X_110∩X74X_184) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3043 = INTERSECTION X_4X_110∩X_74X_184."""
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,
orthocenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03043(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3043 = INTERSECTION X_4X_110∩X_74X_184 on reference triangle ABC."""
X_3043 = eval_trilinear_point(model, A, B, C, '((1 - 4*(cos(A))**(2))**(2)*sec(A))', ID="X_3043", classes=["selected", "target"])
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
central_line(model, X_4, X_110, 4, 110, incident=True)
X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center", "incident"])
X_125 = eval_trilinear_point(model, A, B, C, 'cos(A)*(sin(B - C))**(2)', ID="X_125", classes=["center", "incident"])
central_line(model, X_54, X_125, 54, 125, incident=True)
X_74 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - 2*cos(B)*cos(C))', ID="X_74", classes=["center", "incident"])
X_184 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A)', ID="X_184", classes=["center", "incident"])
central_line(model, X_74, X_184, 74, 184, incident=True)
return promote_point_to_top(model, X_3043)
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_3043 on the given reference triangle."""
model = create_model('X_3043 = INTERSECTION X_4X_110∩X_74X_184')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03043(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-03043.json"))
write_center_svg(
model_acute,
here / "x-03043.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)