X1114¶
2nd EULER-LINE-CIRCUMCIRCLE INTERSECTION
X1114 (2nd EULER-LINE-CIRCUMCIRCLE INTERSECTION) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1114 = 2nd EULER-LINE-CIRCUMCIRCLE 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,
incenter_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01114(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1114 = 2nd EULER-LINE-CIRCUMCIRCLE INTERSECTION on reference triangle ABC."""
X_1114 = eval_trilinear_point(model, A, B, C, '(R + d)*cos(A) - 2*R*cos(B)*cos(C)', ID="X_1114", 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_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
X_1823 = point_from_barycentrics(model, A, B, C, 0.72123578, 0.4152025, -0.13643829, ID="X_1823", classes=["center", "incident"])
central_line(model, X_109, X_1823, 109, 1823, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_2101 = point_from_barycentrics(model, A, B, C, 1.5708923, 1.0669906, -1.637883, ID="X_2101", classes=["center", "incident"])
central_line(model, X_1, X_2101, 1, 2101, incident=True)
return promote_point_to_top(model, X_1114)
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_1114 on the given reference triangle."""
model = create_model('X_1114 = 2nd EULER-LINE-CIRCUMCIRCLE INTERSECTION')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01114(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-01114.json"))
write_center_svg(
model_acute,
here / "x-01114.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)