X3496¶
INTERSECTION OF LINES X1X_32 AND X4X_9
X3496 (INTERSECTION OF LINES X1X_32 AND X4X_9) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3496 = INTERSECTION OF LINES X_1X_32 AND X_4X_9."""
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_trilinear_point,
incenter_of,
mittenpunkt_of,
orthocenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03496(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3496 = INTERSECTION OF LINES X_1X_32 AND X_4X_9 on reference triangle ABC."""
X_3496 = eval_trilinear_point(model, A, B, C, '(b**(3) + c**(3) - a**(3) + a*b*c)', ID="X_3496", classes=["selected", "target"])
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
central_line(model, X_4, X_9, 4, 9, incident=True)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
central_line(model, X_1, X_32, 1, 32, incident=True)
X_63 = eval_trilinear_point(model, A, B, C, 'cot(A)', ID="X_63", classes=["center", "incident"])
X_194 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2)*b**(2) + a**(2)*c**(2) - b**(2)*c**(2))', ID="X_194", classes=["center", "incident"])
central_line(model, X_63, X_194, 63, 194, incident=True)
return promote_point_to_top(model, X_3496)
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_3496 on the given reference triangle."""
model = create_model('X_3496 = INTERSECTION OF LINES X_1X_32 AND X_4X_9')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03496(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-03496.json"))
write_center_svg(
model_acute,
here / "x-03496.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)