X3676¶
X650com(INTOUCH TRIANGLE)
X3676 (X650com(INTOUCH TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3676 = X_650com(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,
construct_baseline_triangle,
create_model,
eval_barycentric_point,
eval_trilinear_point,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03676(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3676 = X_650com(INTOUCH TRIANGLE) on reference triangle ABC."""
X_3676 = eval_barycentric_point(model, A, B, C, '(b - c)/(b + c - a)', ID="X_3676", classes=["selected", "target"])
X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
X_649 = eval_trilinear_point(model, A, B, C, 'a*(b - c)', ID="X_649", classes=["center", "incident"])
central_line(model, X_57, X_649, 57, 649, incident=True)
X_241 = eval_trilinear_point(model, A, B, C, '(cos(B/2))**(4) - ((cos(A/2))**(2))*((cos(B/2))**(2) +(cos(C/2))**(2)) + (cos(C/2))**(4)', ID="X_241", 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_241, X_514, 241, 514, incident=True)
X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
X_658 = eval_trilinear_point(model, A, B, C, '1/((1 + cos(A))*(cos(B) - cos(C)))', ID="X_658", classes=["center", "incident"])
central_line(model, X_109, X_658, 109, 658, incident=True)
return promote_point_to_top(model, X_3676)
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_3676 on the given reference triangle."""
model = create_model('X_3676 = X_650com(INTOUCH TRIANGLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03676(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-03676.json"))
write_center_svg(
model_acute,
here / "x-03676.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)