X1026¶
INTERSECTION OF LINES X1X_2 AND X100X_101
X1026 (INTERSECTION OF LINES X1X_2 AND X100X_101) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1026 = INTERSECTION OF LINES X_1X_2 AND X_100X_101."""
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,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
incenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01026(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1026 = INTERSECTION OF LINES X_1X_2 AND X_100X_101 on reference triangle ABC."""
X_1026 = eval_trilinear_point(model, A, B, C, '((b**(2) + c**(2) - a*(b + c))/(b - c))', ID="X_1026", classes=["selected", "target"])
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
central_line(model, X_1, X_2, 1, 2, incident=True)
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
central_line(model, X_100, X_101, 100, 101, incident=True)
X_664 = eval_trilinear_point(model, A, B, C, '1/(a*(b - c)*(b + c - a))', ID="X_664", classes=["center", "incident"])
X_668 = eval_trilinear_point(model, A, B, C, '1/(a**(2)*(b - c))', ID="X_668", classes=["center", "incident"])
central_line(model, X_664, X_668, 664, 668, incident=True)
return promote_point_to_top(model, X_1026)
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_1026 on the given reference triangle."""
model = create_model('X_1026 = INTERSECTION OF LINES X_1X_2 AND X_100X_101')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01026(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-01026.json"))
write_center_svg(
model_acute,
here / "x-01026.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)