X641¶
COMPLEMENT OF X485
X641 (COMPLEMENT OF X485) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_641 = COMPLEMENT OF X_485."""
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,
centroid_of,
circumcenter_of,
construct_baseline_triangle,
create_model,
eval_trilinear_point,
midpoint,
point_from_barycentrics,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00641(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_641 = COMPLEMENT OF X_485 on reference triangle ABC."""
X_485 = eval_trilinear_point(model, A, B, C, 'sec(A - pi /4)', ID="X_485", classes=["center"])
X_488 = eval_trilinear_point(model, A, B, C, '((cos(A))*(1 + csc(A)*sin(B)*sin(C)))', ID="X_488", classes=["center"])
X_641 = midpoint(model, X_485, X_488, ID="X_641", classes=["selected", "target"], guide=False)
X_140 = eval_trilinear_point(model, A, B, C, '2*cos(A) + cos(B - C)', ID="X_140", classes=["center", "incident"])
X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
central_line(model, X_140, X_141, 140, 141, incident=True)
X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
X_372 = eval_trilinear_point(model, A, B, C, 'cos(A + pi /4)', ID="X_372", classes=["center", "incident"])
central_line(model, X_2, X_372, 2, 372, incident=True)
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
X_639 = point_from_barycentrics(model, A, B, C, 0.35035787, 0.32442401, 0.32521812, ID="X_639", classes=["center", "incident"])
central_line(model, X_3, X_639, 3, 639, incident=True)
return promote_point_to_top(model, X_641)
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_641 on the given reference triangle."""
model = create_model('X_641 = COMPLEMENT OF X_485')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00641(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-00641.json"))
write_center_svg(
model_acute,
here / "x-00641.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)