X2633¶
CROSSSUM OF PU(75)
X2633 (CROSSSUM OF PU(75)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2633 = CROSSSUM OF PU(75)."""
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,
ceva_conjugate,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
incenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02633(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2633 = CROSSSUM OF PU(75) on reference triangle ABC."""
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
X_162 = eval_trilinear_point(model, A, B, C, '1/(sin(2*B) - sin(2*C))', ID="X_162", classes=["center"])
X_2633 = ceva_conjugate(model, A, B, C, X_1, X_162, ID="X_2633", classes=["selected", "target"])
X_656 = eval_trilinear_point(model, A, B, C, 'tan(B) - tan(C)', ID="X_656", classes=["center", "incident"])
central_line(model, X_162, X_656, 162, 656, incident=True)
X_823 = eval_trilinear_point(model, A, B, C, '1/((sec(B))**(2) - (sec(C))**(2))', ID="X_823", classes=["center", "incident"])
X_2618 = eval_trilinear_point(model, A, B, C, 'tan(C - A) - tan(B - A)', ID="X_2618", classes=["center", "incident"])
central_line(model, X_823, X_2618, 823, 2618, incident=True)
return promote_point_to_top(model, X_2633)
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_2633 on the given reference triangle."""
model = create_model('X_2633 = CROSSSUM OF PU(75)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02633(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-02633.json"))
write_center_svg(
model_acute,
here / "x-02633.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)