X1874¶
ZOSMA TRANSFORM OF X511
X1874 (ZOSMA TRANSFORM OF X511) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1874 = ZOSMA TRANSFORM OF X_511."""
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,
isogonal_conjugate,
orthocenter_of,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01874(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1874 = ZOSMA TRANSFORM OF X_511 on reference triangle ABC."""
X_1808 = point_from_barycentrics(model, A, B, C, -0.084715225, 1.0671577, 0.017557534, ID="X_1808", classes=["center"])
X_1874 = isogonal_conjugate(model, A, B, C, X_1808, ID="X_1874", classes=["selected", "target"])
X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center", "incident"])
X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
central_line(model, X_12, X_37, 12, 37, incident=True)
X_29 = eval_trilinear_point(model, A, B, C, '(sec(A))/(cos(B) + cos(C))', ID="X_29", classes=["center", "incident"])
X_34 = eval_trilinear_point(model, A, B, C, '1 - sec(A)', ID="X_34", classes=["center", "incident"])
central_line(model, X_29, X_34, 29, 34, incident=True)
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_240 = eval_trilinear_point(model, A, B, C, 'sec(A)*cos(A + omega )', ID="X_240", classes=["center", "incident"])
central_line(model, X_4, X_240, 4, 240, incident=True)
return promote_point_to_top(model, X_1874)
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_1874 on the given reference triangle."""
model = create_model('X_1874 = ZOSMA TRANSFORM OF X_511')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01874(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-01874.json"))
write_center_svg(
model_acute,
here / "x-01874.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)