X3472¶
X20-CEVA CONJUGATE OF X3345
X3472 (X20-CEVA CONJUGATE OF X3345) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3472 = X_20-CEVA CONJUGATE OF X_3345."""
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_trilinear_point,
incenter_of,
orthocenter_of,
point_from_barycentrics,
promote_point_to_top,
reflection_in_point,
)
from geometor.etc.render import write_center_svg
def construct_x_03472(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3472 = X_20-CEVA CONJUGATE OF X_3345 on reference triangle ABC."""
X_3354 = point_from_barycentrics(model, A, B, C, 0.52487682, 0.4279698, 0.047153374, ID="X_3354", classes=["center"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
X_3472 = reflection_in_point(model, X_3354, X_3, ID="X_3472", classes=["selected", "target"], guide=False)
X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
X_2131 = point_from_barycentrics(model, A, B, C, 0.36616655, 0.37250097, 0.26133249, ID="X_2131", classes=["center", "incident"])
central_line(model, X_40, X_2131, 40, 2131, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_3348 = point_from_barycentrics(model, A, B, C, 0.67432359, 0.51743661, -0.1917602, ID="X_3348", classes=["center", "incident"])
central_line(model, X_1, X_3348, 1, 3348, incident=True)
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_3347 = point_from_barycentrics(model, A, B, C, 0.82737762, 0.71982677, -0.54720439, ID="X_3347", classes=["center", "incident"])
central_line(model, X_4, X_3347, 4, 3347, incident=True)
return promote_point_to_top(model, X_3472)
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_3472 on the given reference triangle."""
model = create_model('X_3472 = X_20-CEVA CONJUGATE OF X_3345')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03472(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-03472.json"))
write_center_svg(
model_acute,
here / "x-03472.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)