X3944¶
X3550com(INTOUCH TRIANGLE)
X3944 (X3550com(INTOUCH TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3944 = X_3550com(INTOUCH TRIANGLE)."""
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,
orthocenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03944(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3944 = X_3550com(INTOUCH TRIANGLE) on reference triangle ABC."""
X_3944 = eval_barycentric_point(model, A, B, C, '(b**(3) + c**(3) - b**(2)*c - b*c**(2) + a*b*c)', ID="X_3944", classes=["selected", "target"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
central_line(model, X_1, X_4, 1, 4, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_846 = eval_trilinear_point(model, A, B, C, '(- a**(2) + b**(2) + c**(2) + b*c + c*a + a*b)', ID="X_846", classes=["center", "incident"])
central_line(model, X_2, X_846, 2, 846, incident=True)
X_43 = eval_trilinear_point(model, A, B, C, 'a*b + a*c - b*c', ID="X_43", classes=["center", "incident"])
X_908 = eval_barycentric_point(model, A, B, C, 'cos(B) + cos(C) - 1', ID="X_908", classes=["center", "incident"])
central_line(model, X_43, X_908, 43, 908, incident=True)
return promote_point_to_top(model, X_3944)
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_3944 on the given reference triangle."""
model = create_model('X_3944 = X_3550com(INTOUCH TRIANGLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03944(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-03944.json"))
write_center_svg(
model_acute,
here / "x-03944.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)