X1086¶
CENTER OF HYPERBOLA {{A,B,C,X2,X7|}
X1086 (CENTER OF HYPERBOLA {{A,B,C,X2,X7|}) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1086 = CENTER OF HYPERBOLA {{A,B,C,X_2,X_7|}."""
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,
centroid_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
gergonne_point_of,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_01086(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1086 = CENTER OF HYPERBOLA {{A,B,C,X_2,X_7|} on reference triangle ABC."""
X_1086 = eval_trilinear_point(model, A, B, C, '(b*c*(b - c)**(2))', ID="X_1086", classes=["selected", "target"])
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
central_line(model, X_6, X_7, 6, 7, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_45 = eval_trilinear_point(model, A, B, C, '2*b + 2*c - a', ID="X_45", classes=["center", "incident"])
central_line(model, X_2, X_45, 2, 45, incident=True)
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
X_142 = eval_trilinear_point(model, A, B, C, 'b + c - ((b - c)**(2))/a', ID="X_142", classes=["center", "incident"])
central_line(model, X_37, X_142, 37, 142, incident=True)
return promote_point_to_top(model, X_1086)
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_1086 on the given reference triangle."""
model = create_model('X_1086 = CENTER OF HYPERBOLA {{A,B,C,X_2,X_7|}')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01086(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-01086.json"))
write_center_svg(
model_acute,
here / "x-01086.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)