X915

ISOGONAL CONJUGATE OF X912

< 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) { 34, 46 }: Central Line L(34, 46) { 19, 101 }: Central Line L(19, 101) { 24, 108 }: Central Line L(24, 108) { 28, 110 }: Central Line L(28, 110) { 99, 286 }: Central Line L(99, 286) { 21, 925 }: Central Line L(21, 925) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_517 = ISOGONAL CONJUGATE OF X(104) (0.8180, 0.7154) X_4 = ORTHOCENTER (0.6122, 0.3958) X_34 = -BETH CONJUGATE OF X(4) (0.6332, 0.4792) X_46 = -CEVA CONJUGATE OF X(1) (0.6917, 0.4543) X_19 = CLAWSON POINT (0.6246, 0.4244) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_24 = PERSPECTOR OF ABC AND ORTHIC-OF-ORTHIC TRIANGLE (0.6627, 0.5278) X_108 = Ψ(CIRCUMCENTER, INCENTER) (0.5320, 0.6114) X_28 = CEVAPOINT OF X(19) AND X(25) (0.6285, 0.4382) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_99 = STEINER POINT (0.1109, 0.4322) X_286 = -CROSS CONJUGATE OF X(27) (0.6033, 0.3810) X_21 = SCHIFFLER POINT (0.5287, 0.1771) X_925 = ANTICOMPLEMENT OF X(136) (0.0074, -0.0312) X_915 = ISOGONAL CONJUGATE OF X(912) (0.9488, 0.3450) A B C X517 X4 X34 X46 X19 X101 X24 X108 X28 X110 X99 X286 X21 X925 X915 (a, b, c) = (5, 6, 7) | AB = 1

X915 (ISOGONAL CONJUGATE OF X912) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_915 = ISOGONAL CONJUGATE OF X_912."""

        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_00915(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_915 = ISOGONAL CONJUGATE OF X_912 on reference triangle ABC."""
            X_912 = eval_trilinear_point(model, A, B, C, '(a**(2) - b**(2) - c**(2))*(a**(3)*(b + c) - a**(2)*(b**(2) + c**(2)) - a*(b - c)**(2)*(b + c) + (b**(2) - c**(2))**(2))', ID="X_912", classes=["center"])
            X_915 = isogonal_conjugate(model, A, B, C, X_912, ID="X_915", classes=["selected", "target"])
            X_34 = eval_trilinear_point(model, A, B, C, '1 - sec(A)', ID="X_34", classes=["center", "incident"])
            X_46 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A)', ID="X_46", classes=["center", "incident"])
            central_line(model, X_34, X_46, 34, 46, incident=True)
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", 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_19, X_101, 19, 101, incident=True)
            X_24 = eval_trilinear_point(model, A, B, C, 'sec(A)*cos(2*A)', ID="X_24", classes=["center", "incident"])
            X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", classes=["center", "incident"])
            central_line(model, X_24, X_108, 24, 108, incident=True)
            return promote_point_to_top(model, X_915)


        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_915 on the given reference triangle."""
            model = create_model('X_915 = ISOGONAL CONJUGATE OF X_912')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00915(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-00915.json"))
            write_center_svg(
                model_acute,
                here / "x-00915.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )