X3250¶
INTERSECTION OF X37X_513 AND X187X_237
X3250 (INTERSECTION OF X37X_513 AND X187X_237) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3250 = INTERSECTION OF X_37X_513 AND X_187X_237."""
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,
promote_point_to_top,
reflection_in_point,
)
from geometor.etc.render import write_center_svg
def construct_x_03250(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3250 = INTERSECTION OF X_37X_513 AND X_187X_237 on reference triangle ABC."""
X_649 = eval_trilinear_point(model, A, B, C, 'a*(b - c)', ID="X_649", classes=["center"])
X_665 = eval_trilinear_point(model, A, B, C, 'a*((a - b)**(2)*(a + b - c) - (c - a)**(2)*(c + a - b))', ID="X_665", classes=["center"])
X_3250 = reflection_in_point(model, X_649, X_665, ID="X_3250", classes=["selected", "target"], guide=False)
X_187 = eval_trilinear_point(model, A, B, C, 'a*(2*a**(2) - b**(2) - c**(2))', ID="X_187", classes=["center", "incident"])
X_237 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A + omega )', ID="X_237", classes=["center", "incident"])
central_line(model, X_187, X_237, 187, 237, incident=True)
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center", "incident"])
central_line(model, X_37, X_513, 37, 513, incident=True)
X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
X_661 = eval_trilinear_point(model, A, B, C, 'cot(B) - cot(C)', ID="X_661", classes=["center", "incident"])
central_line(model, X_514, X_661, 514, 661, incident=True)
return promote_point_to_top(model, X_3250)
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_3250 on the given reference triangle."""
model = create_model('X_3250 = INTERSECTION OF X_37X_513 AND X_187X_237')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03250(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-03250.json"))
write_center_svg(
model_acute,
here / "x-03250.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)