X765¶
CEVAPOINT OF X1 AND X100
X765 (CEVAPOINT OF X1 AND X100) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
"""GEOMETOR construction model for X_765 = CEVAPOINT OF X_1 AND X_100."""
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,
promote_point_to_top,
)
from geometor.etc.render import write_center_svg
def construct_x_00765(
model: Model, A: spg.Point, B: spg.Point, C: spg.Point
) -> spg.Point:
"""Construct X_765 = CEVAPOINT OF X_1 AND X_100 on reference triangle ABC."""
X_244 = eval_trilinear_point(model, A, B, C, '(b - c)**(2)', ID="X_244", classes=["center"])
X_765 = isogonal_conjugate(model, A, B, C, X_244, ID="X_765", classes=["selected", "target"])
X_59 = eval_trilinear_point(model, A, B, C, '1/(1 - cos(B - C))', ID="X_59", classes=["center", "incident"])
X_518 = eval_trilinear_point(model, A, B, C, '(a*b + a*c - b**(2) - c**(2))', ID="X_518", classes=["center", "incident"])
central_line(model, X_59, X_518, 59, 518, incident=True)
X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center", "incident"])
central_line(model, X_100, X_513, 100, 513, incident=True)
X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
X_522 = eval_trilinear_point(model, A, B, C, '(cos(B) - cos(C))*(csc(A))', ID="X_522", classes=["center", "incident"])
central_line(model, X_109, X_522, 109, 522, incident=True)
return promote_point_to_top(model, X_765)
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_765 on the given reference triangle."""
model = create_model('X_765 = CEVAPOINT OF X_1 AND X_100')
A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
construct_x_00765(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-00765.json"))
write_center_svg(
model_acute,
here / "x-00765.svg",
subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
)