X897¶
ISOGONAL CONJUGATE OF X896
X897 (ISOGONAL CONJUGATE OF X896) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_897 = ISOGONAL CONJUGATE OF X_896."""
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,
isogonal_conjugate,
promote_point_to_top,
spieker_center_of,
)
from geometor.etc.render import write_center_svg
def construct_x_00897(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_897 = ISOGONAL CONJUGATE OF X_896 on reference triangle ABC."""
X_896 = eval_trilinear_point(model, A, B, C, '2*a**(2) - b**(2) - c**(2)', ID="X_896", classes=["center"])
X_897 = isogonal_conjugate(model, A, B, C, X_896, ID="X_897", classes=["selected", "target"])
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
central_line(model, X_37, X_100, 37, 100, incident=True)
X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
X_162 = eval_trilinear_point(model, A, B, C, '1/(sin(2*B) - sin(2*C))', ID="X_162", classes=["center", "incident"])
central_line(model, X_19, X_162, 19, 162, incident=True)
X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
X_190 = eval_trilinear_point(model, A, B, C, 'b*c/(b - c)', ID="X_190", classes=["center", "incident"])
central_line(model, X_10, X_190, 10, 190, incident=True)
return promote_point_to_top(model, X_897)
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_897 on the given reference triangle."""
model = create_model('X_897 = ISOGONAL CONJUGATE OF X_896')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00897(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-00897.json"))
write_center_svg(
model_acute,
here / "x-00897.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)