X2340¶
X2-ISOCONJUGATE OF X1462
X2340 (X2-ISOCONJUGATE OF X1462) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2340 = X_2-ISOCONJUGATE OF X_1462."""
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_barycentric_point,
eval_trilinear_point,
incenter_of,
point_from_barycentrics,
promote_point_to_top,
reflection_in_point,
)
from geometor.etc.render import write_center_svg
def construct_x_02340(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2340 = X_2-ISOCONJUGATE OF X_1462 on reference triangle ABC."""
X_1458 = eval_barycentric_point(model, A, B, C, 'a**(2)*(b**(2) + c**(2) - a*b - a*c)/(a - b - c)', ID="X_1458", classes=["center"])
X_1818 = point_from_barycentrics(model, A, B, C, 1.2860082, 0.11728395, -0.40329218, ID="X_1818", classes=["center"])
X_2340 = reflection_in_point(model, X_1458, X_1818, ID="X_2340", classes=["selected", "target"], guide=False)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
central_line(model, X_1, X_2, 1, 2, incident=True)
X_41 = eval_trilinear_point(model, A, B, C, 'a**(2)*(b + c - a)', ID="X_41", classes=["center", "incident"])
X_55 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)', ID="X_55", classes=["center", "incident"])
central_line(model, X_41, X_55, 41, 55, incident=True)
X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
X_218 = eval_trilinear_point(model, A, B, C, '((cos(A/2))**(2)*((cos(B/2))**(4) + (cos(C/2))**(4) - (cos(A/2))**(4)))', ID="X_218", classes=["center", "incident"])
central_line(model, X_31, X_218, 31, 218, incident=True)
return promote_point_to_top(model, X_2340)
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_2340 on the given reference triangle."""
model = create_model('X_2340 = X_2-ISOCONJUGATE OF X_1462')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02340(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-02340.json"))
write_center_svg(
model_acute,
here / "x-02340.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)