X201¶
X10-CEVA CONJUGATE OF X12
X201 (X10-CEVA CONJUGATE OF X12) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_201 = X_10-CEVA CONJUGATE OF X_12."""
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,
mittenpunkt_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00201(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_201 = X_10-CEVA CONJUGATE OF X_12 on reference triangle ABC."""
X_201 = eval_trilinear_point(model, A, B, C, '(cos(A))*(1 + cos(B - C))', ID="X_201", classes=["selected", "target"])
X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", 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_9, X_34, 9, 34, incident=True)
X_33 = eval_trilinear_point(model, A, B, C, '1 + sec(A)', ID="X_33", classes=["center", "incident"])
X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
central_line(model, X_33, X_40, 33, 40, incident=True)
X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", 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_38, X_56, 38, 56, incident=True)
return promote_point_to_top(model, X_201)
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_201 on the given reference triangle."""
model = create_model('X_201 = X_10-CEVA CONJUGATE OF X_12')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00201(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-00201.json"))
write_center_svg(
model_acute,
here / "x-00201.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)