X3538¶
EULER LINE INTERCEPT OF LINE X1038X_1056
X3538 (EULER LINE INTERCEPT OF LINE X1038X_1056) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3538 = EULER LINE INTERCEPT OF LINE X_1038X_1056."""
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,
)
from geometor.etc.render import write_center_svg
def construct_x_03538(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3538 = EULER LINE INTERCEPT OF LINE X_1038X_1056 on reference triangle ABC."""
X_3538 = eval_trilinear_point(model, A, B, C, '(cos(B)*cos(C) - 2*sec(B)*sec(C))', ID="X_3538", 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_1038 = eval_trilinear_point(model, A, B, C, 'cos(A) + cos(A)*cos(B)*cos(C)', ID="X_1038", classes=["center", "incident"])
X_1056 = eval_trilinear_point(model, A, B, C, '(2 + cos(B)*cos(C))', ID="X_1056", classes=["center", "incident"])
central_line(model, X_1038, X_1056, 1038, 1056, incident=True)
X_1040 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(A)*cos(B)*cos(C)', ID="X_1040", classes=["center", "incident"])
X_1058 = eval_trilinear_point(model, A, B, C, '(2 - cos(B)*cos(C))', ID="X_1058", classes=["center", "incident"])
central_line(model, X_1040, X_1058, 1040, 1058, incident=True)
return promote_point_to_top(model, X_3538)
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_3538 on the given reference triangle."""
model = create_model('X_3538 = EULER LINE INTERCEPT OF LINE X_1038X_1056')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03538(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-03538.json"))
write_center_svg(
model_acute,
here / "x-03538.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)