X3254¶
REFLECTION OF X9 IN X11
X3254 (REFLECTION OF X9 IN X11) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3254 = REFLECTION OF X_9 IN X_11."""
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,
feuerbach_point_of,
gergonne_point_of,
midpoint,
mittenpunkt_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03254(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3254 = REFLECTION OF X_9 IN X_11 on reference triangle ABC."""
X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center"])
X_149 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(3) + c**(3) - a**(3) + (a**(2) - b*c)*(b + c) + a*(b*c - b**(2) - c**(2))))', ID="X_149", classes=["center"])
X_3254 = midpoint(model, X_7, X_149, ID="X_3254", classes=["selected", "target"], guide=False)
X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
central_line(model, X_9, X_11, 9, 11, incident=True)
central_line(model, X_7, X_149, 7, 149, incident=True)
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
X_142 = eval_trilinear_point(model, A, B, C, 'b + c - ((b - c)**(2))/a', ID="X_142", classes=["center", "incident"])
central_line(model, X_100, X_142, 100, 142, incident=True)
return promote_point_to_top(model, X_3254)
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_3254 on the given reference triangle."""
model = create_model('X_3254 = REFLECTION OF X_9 IN X_11')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03254(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-03254.json"))
write_center_svg(
model_acute,
here / "x-03254.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)