X3294

SS(a → ab + ac) OF X3

< 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) { 1, 6 }: Incenter–Symmedian Line { 21, 101 }: Central Line L(21, 101) { 190, 274 }: Central Line L(190, 274) { 573, 962 }: Central Line L(573, 962) { 672, 1125 }: Central Line L(672, 1125) { 846, 2664 }: Central Line L(846, 2664) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_21 = SCHIFFLER POINT (0.5287, 0.1771) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_573 = ORTHOHARMONIC OF X(58) (0.4486, 0.0172) X_962 = LONGUET-HIGGINS POINT (0.7551, 0.6582) X_672 = CROSSDIFFERENCE OF X(1) AND X(514) (1.9245, 2.2184) X_1125 = COMPLEMENT OF X(10) (0.5459, 0.2083) X_846 = 4th SHARYGIN POINT (0.5437, 0.1969) X_2664 = CROSSDIFFERENCE OF PU(84) (1.9947, 1.6278) X_3294 = SS(a → ab + ac) OF X(3) (0.5263, 0.1797) A B C X1 X6 X21 X101 X190 X274 X573 X962 X672 X1125 X846 X2664 X3294 (a, b, c) = (5, 6, 7) | AB = 1

X3294 (SS(a → ab + ac) OF X3) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3294 = SS(a → ab + ac) OF X_3."""

        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,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03294(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3294 = SS(a → ab + ac) OF X_3 on reference triangle ABC."""
            X_3294 = eval_trilinear_point(model, A, B, C, '((a*b + a*c)*((b*c + b*a)**(2) + (c*a + c*b)**(2) - (a*b + a*c)**(2)))', ID="X_3294", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_1, X_6, 1, 6, incident=True)
            X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
            X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
            central_line(model, X_21, X_101, 21, 101, incident=True)
            X_190 = eval_trilinear_point(model, A, B, C, 'b*c/(b - c)', ID="X_190", classes=["center", "incident"])
            X_274 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c)', ID="X_274", classes=["center", "incident"])
            central_line(model, X_190, X_274, 190, 274, incident=True)
            return promote_point_to_top(model, X_3294)


        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_3294 on the given reference triangle."""
            model = create_model('X_3294 = SS(a → ab + ac) OF X_3')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03294(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-03294.json"))
            write_center_svg(
                model_acute,
                here / "x-03294.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )