X3056¶
INTERSECTION OF LINES X1X_256 AND X6X_31
X3056 (INTERSECTION OF LINES X1X_256 AND X6X_31) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3056 = INTERSECTION OF LINES X_1X_256 AND X_6X_31."""
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,
feuerbach_point_of,
incenter_of,
promote_point_to_top,
reflection_in_point,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_03056(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3056 = INTERSECTION OF LINES X_1X_256 AND X_6X_31 on reference triangle ABC."""
X_1469 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + b*c + c**(2))/(a - b - c)', ID="X_1469", classes=["center"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
X_3056 = reflection_in_point(model, X_1469, X_1, ID="X_3056", classes=["selected", "target"], guide=False)
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
central_line(model, X_6, X_31, 6, 31, incident=True)
X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
central_line(model, X_11, X_141, 11, 141, incident=True)
X_35 = eval_trilinear_point(model, A, B, C, '1 + 2*cos(A)', ID="X_35", classes=["center", "incident"])
X_182 = eval_trilinear_point(model, A, B, C, 'cos(A- omega )', ID="X_182", classes=["center", "incident"])
central_line(model, X_35, X_182, 35, 182, incident=True)
return promote_point_to_top(model, X_3056)
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_3056 on the given reference triangle."""
model = create_model('X_3056 = INTERSECTION OF LINES X_1X_256 AND X_6X_31')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03056(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-03056.json"))
write_center_svg(
model_acute,
here / "x-03056.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)