X1316¶
5th MOSES INTERSECTION
X1316 (5th MOSES INTERSECTION) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1316 = 5th MOSES INTERSECTION."""
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,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_01316(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1316 = 5th MOSES INTERSECTION on reference triangle ABC."""
X_1316 = eval_trilinear_point(model, A, B, C, 'b*c*(sin(B - C))**(2) + a**(2)*sin(A - B)*sin(A - C)', ID="X_1316", 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_250 = eval_trilinear_point(model, A, B, C, '(sec(A))*(csc(B - C))**(2)', ID="X_250", classes=["center", "incident"])
X_264 = eval_trilinear_point(model, A, B, C, 'csc(A)*csc(2*A)', ID="X_264", classes=["center", "incident"])
central_line(model, X_250, X_264, 250, 264, incident=True)
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
central_line(model, X_6, X_523, 6, 523, incident=True)
return promote_point_to_top(model, X_1316)
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_1316 on the given reference triangle."""
model = create_model('X_1316 = 5th MOSES INTERSECTION')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01316(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-01316.json"))
write_center_svg(
model_acute,
here / "x-01316.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)