X1183¶
2nd SARAGOSSA POINT OF X21
X1183 (2nd SARAGOSSA POINT OF X21) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_1183 = 2nd SARAGOSSA POINT OF X_21."""
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,
incenter_of,
intersect_lines,
nagel_point_of,
promote_point_to_top,
symmedian_point_of,
)
from geometor.etc.render import write_center_svg
def construct_x_01183(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_1183 = 2nd SARAGOSSA POINT OF X_21 on reference triangle ABC."""
X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
X_41 = eval_trilinear_point(model, A, B, C, 'a**(2)*(b + c - a)', ID="X_41", classes=["center"])
X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
X_959 = eval_trilinear_point(model, A, B, C, '(1/((b + c - a)*(a**(2) + a*b + a*c + 2*b*c)))', ID="X_959", classes=["center"])
central_line(model, X_1, X_41, 1, 41)
central_line(model, X_6, X_959, 6, 959)
X_1183 = intersect_lines(model, X_1, X_41, X_6, X_959, ID="X_1183", classes=["selected", "target"])
X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
X_1036 = eval_trilinear_point(model, A, B, C, '(1/(1 + cos(B)*cos(C)))', ID="X_1036", classes=["center", "incident"])
central_line(model, X_8, X_1036, 8, 1036, incident=True)
return promote_point_to_top(model, X_1183)
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_1183 on the given reference triangle."""
model = create_model('X_1183 = 2nd SARAGOSSA POINT OF X_21')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_01183(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-01183.json"))
write_center_svg(
model_acute,
here / "x-01183.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)