X959¶
ISOGONAL CONJUGATE OF X958
X959 (ISOGONAL CONJUGATE OF X958) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_959 = ISOGONAL CONJUGATE OF X_958."""
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,
isogonal_conjugate,
nagel_point_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00959(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_959 = ISOGONAL CONJUGATE OF X_958 on reference triangle ABC."""
X_958 = eval_trilinear_point(model, A, B, C, '(b + c - a)*(a**(2) + a*b + a*c + 2*b*c)', ID="X_958", classes=["center"])
X_959 = isogonal_conjugate(model, A, B, C, X_958, ID="X_959", classes=["selected", "target"])
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_65 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C)', ID="X_65", classes=["center", "incident"])
central_line(model, X_2, X_65, 2, 65, incident=True)
X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
central_line(model, X_56, X_81, 56, 81, incident=True)
X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
X_181 = eval_trilinear_point(model, A, B, C, 'a*(b + c)**(2)/(b + c - a)', ID="X_181", classes=["center", "incident"])
central_line(model, X_8, X_181, 8, 181, incident=True)
return promote_point_to_top(model, X_959)
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_959 on the given reference triangle."""
model = create_model('X_959 = ISOGONAL CONJUGATE OF X_958')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00959(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-00959.json"))
write_center_svg(
model_acute,
here / "x-00959.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)