X3716¶
X659com(EXTOUCH TRIANGLE)
X3716 (X659com(EXTOUCH TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3716 = X_659com(EXTOUCH 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,
complement,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
feuerbach_point_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03716(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3716 = X_659com(EXTOUCH TRIANGLE) on reference triangle ABC."""
X_2254 = eval_trilinear_point(model, A, B, C, '(b - c)*(a*b + a*c - b**(2) - c**(2))', ID="X_2254", classes=["center"])
X_3716 = complement(model, A, B, C, X_2254, ID="X_3716", classes=["selected", "target"])
X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
X_124 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - a)*(b - c)**(2)*((b + c)*(b**(2) + c**(2) - a**(2) - b*c) + a*b*c))', ID="X_124", classes=["center", "incident"])
central_line(model, X_11, X_124, 11, 124, incident=True)
X_118 = point_from_barycentrics(model, A, B, C, 0.28918651, -0.056547619, 0.76736111, ID="X_118", classes=["center", "incident"])
X_120 = eval_trilinear_point(model, A, B, C, 'b*c*(2*a*b*c - (b + c)*(a**(2) + (b - c)**(2)))*(b**(2) + c**(2) - a*b -a*c)', ID="X_120", classes=["center", "incident"])
central_line(model, X_118, X_120, 118, 120, incident=True)
X_522 = eval_trilinear_point(model, A, B, C, '(cos(B) - cos(C))*(csc(A))', ID="X_522", classes=["center", "incident"])
X_650 = eval_trilinear_point(model, A, B, C, 'cos(B) - cos(C)', ID="X_650", classes=["center", "incident"])
central_line(model, X_522, X_650, 522, 650, incident=True)
return promote_point_to_top(model, X_3716)
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_3716 on the given reference triangle."""
model = create_model('X_3716 = X_659com(EXTOUCH TRIANGLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03716(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-03716.json"))
write_center_svg(
model_acute,
here / "x-03716.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)