X3728¶
X192com(INCENTRAL TRIANGLE)
X3728 (X192com(INCENTRAL TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3728 = X_192com(INCENTRAL 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,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
eval_trilinear_point,
nagel_point_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03728(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3728 = X_192com(INCENTRAL TRIANGLE) on reference triangle ABC."""
X_3728 = eval_barycentric_point(model, A, B, C, '(a*(b + c)*(a*b**(2) + a*c**(2) + b*c**(2) + c*b**(2)))', ID="X_3728", classes=["selected", "target"])
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
central_line(model, X_37, X_42, 37, 42, incident=True)
X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", classes=["center", "incident"])
X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
central_line(model, X_38, X_75, 38, 75, incident=True)
X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
X_192 = eval_trilinear_point(model, A, B, C, 'b*c*(c*a + a*b - b*c)', ID="X_192", classes=["center", "incident"])
central_line(model, X_8, X_192, 8, 192, incident=True)
return promote_point_to_top(model, X_3728)
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_3728 on the given reference triangle."""
model = create_model('X_3728 = X_192com(INCENTRAL TRIANGLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03728(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-03728.json"))
write_center_svg(
model_acute,
here / "x-03728.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)