X2403¶
GIBERT-SIMSON TRANSFORM OF X106
X2403 (GIBERT-SIMSON TRANSFORM OF X106) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_2403 = GIBERT-SIMSON TRANSFORM OF X_106."""
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,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_02403(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_2403 = GIBERT-SIMSON TRANSFORM OF X_106 on reference triangle ABC."""
X_2403 = eval_trilinear_point(model, A, B, C, '(b*c*(b - c)*(3*a - b - c)/(2*a - b - c))', ID="X_2403", classes=["selected", "target"])
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
central_line(model, X_2, X_514, 2, 514, incident=True)
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
X_1222 = point_from_barycentrics(model, A, B, C, 0.3683818, 0.31991051, 0.31170768, ID="X_1222", classes=["center", "incident"])
central_line(model, X_523, X_1222, 523, 1222, incident=True)
X_901 = eval_trilinear_point(model, A, B, C, 'a/((b - c)*(b + c - 2*a))', ID="X_901", classes=["center", "incident"])
X_2398 = point_from_barycentrics(model, A, B, C, -1.2222222, 0.33333333, 1.8888889, ID="X_2398", classes=["center", "incident"])
central_line(model, X_901, X_2398, 901, 2398, incident=True)
return promote_point_to_top(model, X_2403)
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_2403 on the given reference triangle."""
model = create_model('X_2403 = GIBERT-SIMSON TRANSFORM OF X_106')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_02403(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-02403.json"))
write_center_svg(
model_acute,
here / "x-02403.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)