X1790¶
INVERSE MIMOSA TRANSFORM OF X6
X1790 (INVERSE MIMOSA TRANSFORM OF X6) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1790 = INVERSE MIMOSA TRANSFORM OF X_6."""
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,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01790(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1790 = INVERSE MIMOSA TRANSFORM OF X_6 on reference triangle ABC."""
X_1790 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2) - a**(2))/(b + c)', ID="X_1790", classes=["selected", "target"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_49 = eval_trilinear_point(model, A, B, C, 'cos(3*A)', ID="X_49", classes=["center", "incident"])
central_line(model, X_3, X_49, 3, 49, incident=True)
X_36 = eval_trilinear_point(model, A, B, C, '1 - 2*cos(A)', ID="X_36", classes=["center", "incident"])
X_58 = eval_trilinear_point(model, A, B, C, 'a/(b + c)', ID="X_58", classes=["center", "incident"])
central_line(model, X_36, X_58, 36, 58, incident=True)
X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
X_84 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C) - cos(A) - 1)', ID="X_84", classes=["center", "incident"])
central_line(model, X_21, X_84, 21, 84, incident=True)
return promote_point_to_top(model, X_1790)
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_1790 on the given reference triangle."""
model = create_model('X_1790 = INVERSE MIMOSA TRANSFORM OF X_6')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01790(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-01790.json"))
write_center_svg(
model_acute,
here / "x-01790.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)