X3031¶
INTERSECTION X10X_125∩X74X_573
X3031 = complement of X38482
X3031 (INTERSECTION X10X_125∩X74X_573) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3031 = INTERSECTION X_10X_125∩X_74X_573."""
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,
spieker_center_of,
)
from geometor.etc.render import write_center_svg
def construct_x_03031(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3031 = INTERSECTION X_10X_125∩X_74X_573 on reference triangle ABC."""
X_3031 = eval_trilinear_point(model, A, B, C, '(a*(b + c)**(2)*(a**(3) + b**(3) - c**(3) + a**(2)*c - b**(2)*c - a*c**(2))*(a**(3) - b**(3) + c**(3) + a**(2)*b - b*c**(2) - a*b**(2)))', ID="X_3031", classes=["selected", "target"])
X_10 = spieker_center_of(model, A, B, C, ID="X_10", 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_10, X_125, 10, 125, incident=True)
X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
X_386 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2) + b*c + c*a + a*b)', ID="X_386", classes=["center", "incident"])
central_line(model, X_110, X_386, 110, 386, 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_573 = eval_trilinear_point(model, A, B, C, 'cos(A + U)', ID="X_573", classes=["center", "incident"])
central_line(model, X_74, X_573, 74, 573, incident=True)
return promote_point_to_top(model, X_3031)
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_3031 on the given reference triangle."""
model = create_model('X_3031 = INTERSECTION X_10X_125∩X_74X_573')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03031(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-03031.json"))
write_center_svg(
model_acute,
here / "x-03031.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)