X3851¶
X3523com(EULER TRIANGLE)
X3851 (X3523com(EULER TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3851 = X_3523com(EULER 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,
circumcenter_of,
complement,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03851(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3851 = X_3523com(EULER TRIANGLE) on reference triangle ABC."""
X_3528 = eval_trilinear_point(model, A, B, C, '(5*cos(A) - sin(B)*sin(C))', ID="X_3528", classes=["center"])
X_3851 = complement(model, A, B, C, X_3528, ID="X_3851", classes=["selected", "target"])
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
central_line(model, X_2, X_3, 2, 3)
X_355 = eval_trilinear_point(model, A, B, C, 'a*cos(A) - (b + c)*cos(B - C)', ID="X_355", classes=["center", "incident"])
X_3244 = eval_trilinear_point(model, A, B, C, 'b*c*(4*a - b - c)', ID="X_3244", classes=["center", "incident"])
central_line(model, X_355, X_3244, 355, 3244, incident=True)
X_946 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(3)*(b + c) + (b - c)**(2)*(a**(2) - a*b - a*c - b**(2) - c**(2) - 2*b*c))', ID="X_946", classes=["center", "incident"])
X_3626 = eval_trilinear_point(model, A, B, C, 'b*c*(2*a - 3*b - 3*c)', ID="X_3626", classes=["center", "incident"])
central_line(model, X_946, X_3626, 946, 3626, incident=True)
return promote_point_to_top(model, X_3851)
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_3851 on the given reference triangle."""
model = create_model('X_3851 = X_3523com(EULER TRIANGLE)')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03851(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-03851.json"))
write_center_svg(
model_acute,
here / "x-03851.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)