X1499¶
POINT BIHAM
X1499 (POINT BIHAM) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1499 = POINT BIHAM."""
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,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
eval_trilinear_point,
isogonal_conjugate,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01499(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1499 = POINT BIHAM on reference triangle ABC."""
X_1296 = eval_barycentric_point(model, A, B, C, 'a**(2)/((b**(2) - c**(2))*(5*a**(2) - b**(2) - c**(2)))', ID="X_1296", classes=["center"])
X_1499 = isogonal_conjugate(model, A, B, C, X_1296, ID="X_1499", classes=["selected", "target"])
X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
X_511 = eval_trilinear_point(model, A, B, C, 'cos(A + omega )', ID="X_511", classes=["center", "incident"])
central_line(model, X_30, X_511, 30, 511, incident=True)
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_669 = eval_trilinear_point(model, A, B, C, 'a**(3)*(b**(2) - c**(2))', ID="X_669", classes=["center", "incident"])
central_line(model, X_3, X_669, 3, 669, incident=True)
X_98 = eval_trilinear_point(model, A, B, C, 'sec(A + omega )', ID="X_98", classes=["center", "incident"])
X_843 = point_from_barycentrics(model, A, B, C, 0.55581336, -0.33333326, 0.77751991, ID="X_843", classes=["center", "incident"])
central_line(model, X_98, X_843, 98, 843, incident=True)
return promote_point_to_top(model, X_1499)
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_1499 on the given reference triangle."""
model = create_model('X_1499 = POINT BIHAM')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01499(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-01499.json"))
write_center_svg(
model_acute,
here / "x-01499.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)