X1783¶
MIMOSA TRANSFORM OF X1262
X1783 (MIMOSA TRANSFORM OF X1262) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1783 = MIMOSA TRANSFORM OF X_1262."""
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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_01783(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1783 = MIMOSA TRANSFORM OF X_1262 on reference triangle ABC."""
X_905 = eval_trilinear_point(model, A, B, C, '(b - c)*cot(A)', ID="X_905", classes=["center"])
X_1783 = isogonal_conjugate(model, A, B, C, X_905, ID="X_1783", classes=["selected", "target"])
X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", 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_101, X_108, 101, 108, incident=True)
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
X_112 = eval_trilinear_point(model, A, B, C, 'a/(sin(2*B) - sin(2*C))', ID="X_112", classes=["center", "incident"])
central_line(model, X_100, X_112, 100, 112, incident=True)
X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
X_218 = eval_trilinear_point(model, A, B, C, '((cos(A/2))**(2)*((cos(B/2))**(4) + (cos(C/2))**(4) - (cos(A/2))**(4)))', ID="X_218", classes=["center", "incident"])
central_line(model, X_4, X_218, 4, 218, incident=True)
return promote_point_to_top(model, X_1783)
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_1783 on the given reference triangle."""
model = create_model('X_1783 = MIMOSA TRANSFORM OF X_1262')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01783(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-01783.json"))
write_center_svg(
model_acute,
here / "x-01783.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)