X3273¶
PERSPECTOR OF TRIANGLES M1M2M3 AND J1J2J3
X3273 is the perspector of triangles m1m2m3 and j1j2j3.
X3273 (PERSPECTOR OF TRIANGLES M1M2M3 AND J1J2J3) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_3273 = PERSPECTOR OF TRIANGLES M1M2M3 AND J1J2J3."""
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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_03273(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_3273 = PERSPECTOR OF TRIANGLES M1M2M3 AND J1J2J3 on reference triangle ABC."""
X_3273 = eval_trilinear_point(model, A, B, C, 'sin(A/3 + pi /3)', ID="X_3273", classes=["selected", "target"])
X_16 = eval_trilinear_point(model, A, B, C, 'sin(A- pi /3)', ID="X_16", classes=["center", "incident"])
X_358 = eval_trilinear_point(model, A, B, C, 'cos(A/3)', ID="X_358", classes=["center", "incident"])
central_line(model, X_16, X_358, 16, 358, incident=True)
X_357 = eval_trilinear_point(model, A, B, C, 'sec(A/3)', ID="X_357", classes=["center", "incident"])
X_1136 = eval_trilinear_point(model, A, B, C, '1/cos(A/3 + 4*pi /3)', ID="X_1136", classes=["center", "incident"])
central_line(model, X_357, X_1136, 357, 1136, incident=True)
X_356 = eval_trilinear_point(model, A, B, C, 'cos(A/3) + 2*cos(B/3)*cos(C/3)', ID="X_356", classes=["center", "incident"])
X_3272 = eval_trilinear_point(model, A, B, C, 'cos(B/3 - C/3)', ID="X_3272", classes=["center", "incident"])
central_line(model, X_356, X_3272, 356, 3272, incident=True)
return promote_point_to_top(model, X_3273)
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_3273 on the given reference triangle."""
model = create_model('X_3273 = PERSPECTOR OF TRIANGLES M1M2M3 AND J1J2J3')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_03273(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-03273.json"))
write_center_svg(
model_acute,
here / "x-03273.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)