X3967

X3752com[INVERSE(n(INCENTRAL TRIANGLE))]

< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 210, 321 }: Central Line L(210, 321) { 43, 536 }: Central Line L(43, 536) { 37, 714 }: Central Line L(37, 714) { 312, 518 }: Central Line L(312, 518) { 72, 1089 }: Central Line L(72, 1089) { 42, 3175 }: Central Line L(42, 3175) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_210 = -CEVA CONJUGATE OF X(37) (0.4925, 0.1466) X_321 = ISOTOMIC CONJUGATE OF X(81) (0.4800, 0.1527) X_43 = -CEVA CONJUGATE OF X(1) (0.6358, 0.2963) X_536 = DIRECTION OF VECTOR AX + BX + CX, where X = X(37) (0.0840, -0.1727) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_714 = EVEN (- 3, - 1) INFINITY POINT (1.0302, 0.5186) X_312 = ISOTOMIC CONJUGATE OF X(57) (0.4256, 0.1081) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_72 = ISOGONAL CONJUGATE OF X(28) (0.4367, 0.0733) X_1089 = TRILINEAR SQUARE OF X(10) (0.4606, 0.1381) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_3175 = -CEVA CONJUGATE OF X(10) (0.7147, 0.3456) X_3967 = com[INVERSE(n(INCENTRAL TRIANGLE))] (0.4681, 0.1585) A B C X210 X321 X43 X536 X37 X714 X312 X518 X72 X1089 X42 X3175 X3967 (a, b, c) = (5, 6, 7) | AB = 1

X3967 (X3752com[INVERSE(n(INCENTRAL TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3967 = X_3752com[INVERSE(n(INCENTRAL TRIANGLE))]."""

        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_barycentric_point,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03967(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3967 = X_3752com[INVERSE(n(INCENTRAL TRIANGLE))] on reference triangle ABC."""
            X_3967 = eval_barycentric_point(model, A, B, C, '((b + c)*(a**(2) - a*b - a*c + 2*b*c))', ID="X_3967", classes=["selected", "target"])
            X_210 = eval_trilinear_point(model, A, B, C, '(b + c)*(b + c - a)', ID="X_210", classes=["center", "incident"])
            X_321 = eval_trilinear_point(model, A, B, C, '(b + c)*b**(2)*c**(2)', ID="X_321", classes=["center", "incident"])
            central_line(model, X_210, X_321, 210, 321, incident=True)
            X_43 = eval_trilinear_point(model, A, B, C, 'a*b + a*c - b*c', ID="X_43", classes=["center", "incident"])
            X_536 = eval_barycentric_point(model, A, B, C, '2*b*c - c*a - a*b', ID="X_536", classes=["center", "incident"])
            central_line(model, X_43, X_536, 43, 536, incident=True)
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            X_714 = eval_trilinear_point(model, A, B, C, '(a **(-4)*(b **(-1) + c **(-1)) - a **(-2)*(b **(-3) + c **(-3)))', ID="X_714", classes=["center", "incident"])
            central_line(model, X_37, X_714, 37, 714, incident=True)
            return promote_point_to_top(model, X_3967)


        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_3967 on the given reference triangle."""
            model = create_model('X_3967 = X_3752com[INVERSE(n(INCENTRAL TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03967(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-03967.json"))
            write_center_svg(
                model_acute,
                here / "x-03967.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )