X1295¶
COLLINGS TRANSFORM OF X123
X1295 (COLLINGS TRANSFORM OF X123) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1295 = COLLINGS TRANSFORM OF X_123."""
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,
cevapoint,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
orthocenter_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01295(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1295 = COLLINGS TRANSFORM OF X_123 on reference triangle ABC."""
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
X_517 = eval_trilinear_point(model, A, B, C, '-1 + cos(B) + cos(C)', ID="X_517", classes=["center"])
X_1295 = cevapoint(model, A, B, C, X_3, X_517, ID="X_1295", classes=["selected", "target"])
X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", classes=["center", "incident"])
central_line(model, X_3, X_108, 3, 108, incident=True)
X_20 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(B)*cos(C)', ID="X_20", classes=["center", "incident"])
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
central_line(model, X_20, X_100, 20, 100, incident=True)
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_123 = eval_trilinear_point(model, A, B, C, '(csc(A))*(sec(B) - sec(C))*((sec(A))*((sin(B))**(2) - (sin(C))**(2)) + sin(C)*tan(C) - sin(B)*tan(B))', ID="X_123", classes=["center", "incident"])
central_line(model, X_4, X_123, 4, 123, incident=True)
return promote_point_to_top(model, X_1295)
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_1295 on the given reference triangle."""
model = create_model('X_1295 = COLLINGS TRANSFORM OF X_123')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01295(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-01295.json"))
write_center_svg(
model_acute,
here / "x-01295.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)