X3359¶
MIDPOINT OF X2096 AND X3421
X3359 (MIDPOINT OF X2096 AND X3421) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3359 = MIDPOINT OF X_2096 AND X_3421."""
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,
incenter_of,
midpoint,
mittenpunkt_of,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03359(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3359 = MIDPOINT OF X_2096 AND X_3421 on reference triangle ABC."""
X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center"])
X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center"])
X_3359 = midpoint(model, X_40, X_57, ID="X_3359", classes=["selected", "target"], guide=False)
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
central_line(model, X_1, X_3, 1, 3, incident=True)
X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
X_119 = eval_trilinear_point(model, A, B, C, '(csc(A))*(-1 + cos(B) + cos(C))*(sin(2*B) + sin(2*C) + 2*(-1 + cos(A))*(sin(B) + sin(C)))', ID="X_119", classes=["center", "incident"])
central_line(model, X_9, X_119, 9, 119, incident=True)
X_84 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C) - cos(A) - 1)', ID="X_84", classes=["center", "incident"])
X_355 = eval_trilinear_point(model, A, B, C, 'a*cos(A) - (b + c)*cos(B - C)', ID="X_355", classes=["center", "incident"])
central_line(model, X_84, X_355, 84, 355, incident=True)
return promote_point_to_top(model, X_3359)
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_3359 on the given reference triangle."""
model = create_model('X_3359 = MIDPOINT OF X_2096 AND X_3421')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03359(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-03359.json"))
write_center_svg(
model_acute,
here / "x-03359.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)