X207¶
X1-CEVA CONJUGATE OF X34
X207 (X1-CEVA CONJUGATE OF X34) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_207 = X_1-CEVA CONJUGATE OF X_34."""
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,
)
from geometor.etc.render import write_center_svg
def construct_x_00207(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_207 = X_1-CEVA CONJUGATE OF X_34 on reference triangle ABC."""
X_207 = eval_trilinear_point(model, A, B, C, '((1 - sec(A))*(sec(B) + sec(C) - sec(A) - 1))', ID="X_207", classes=["selected", "target"])
X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
central_line(model, X_19, X_56, 19, 56, incident=True)
X_33 = eval_trilinear_point(model, A, B, C, '1 + sec(A)', ID="X_33", classes=["center", "incident"])
X_64 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - cos(B)*cos(C))', ID="X_64", classes=["center", "incident"])
central_line(model, X_33, X_64, 33, 64, incident=True)
X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", classes=["center", "incident"])
central_line(model, X_40, X_108, 40, 108, incident=True)
return promote_point_to_top(model, X_207)
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_207 on the given reference triangle."""
model = create_model('X_207 = X_1-CEVA CONJUGATE OF X_34')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00207(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-00207.json"))
write_center_svg(
model_acute,
here / "x-00207.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)