X1243

ISOGONAL CONJUGATE OF X1006

< 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) { 5, 72 }: Central Line L(5, 72) { 28, 54 }: Central Line L(28, 54) { 71, 517 }: Central Line L(71, 517) { 73, 942 }: Central Line L(73, 942) { 270, 1175 }: Central Line L(270, 1175) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1006 = INTERCEPT OF EULER LINE AND LINEX(9)X(48) (0.5190, 0.1517) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_72 = ISOGONAL CONJUGATE OF X(28) (0.4367, 0.0733) X_28 = CEVAPOINT OF X(19) AND X(25) (0.6285, 0.4382) X_54 = KOSNITA POINT (0.5880, 0.2176) X_71 = ISOGONAL CONJUGATE OF X(27) (0.4807, 0.0915) X_517 = ISOGONAL CONJUGATE OF X(104) (0.8180, 0.7154) X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.5487, 0.1428) X_942 = INCIRCLE-INVERSE OF X(36) (0.5878, 0.2633) X_270 = ISOGONAL CONJUGATE OF X(201) (0.6168, 0.3881) X_1175 = 1st SARAGOSSA POINT OF X(65) (0.5976, 0.2549) X_1243 = ISOGONAL CONJUGATE OF X(1006) (0.6077, 0.3247) A B C X1006 X5 X72 X28 X54 X71 X517 X73 X942 X270 X1175 X1243 (a, b, c) = (5, 6, 7) | AB = 1

X1243 (ISOGONAL CONJUGATE OF X1006) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1243 = ISOGONAL CONJUGATE OF X_1006."""

        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,
            nine_point_center_of,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01243(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1243 = ISOGONAL CONJUGATE OF X_1006 on reference triangle ABC."""
            X_1006 = point_from_barycentrics(model, A, B, C, 0.38295089, 0.36413043, 0.25291868, ID="X_1006", classes=["center"])
            X_1243 = isogonal_conjugate(model, A, B, C, X_1006, ID="X_1243", classes=["selected", "target"])
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
            X_72 = eval_trilinear_point(model, A, B, C, '(b + c)*cot(A)', ID="X_72", classes=["center", "incident"])
            central_line(model, X_5, X_72, 5, 72, incident=True)
            X_28 = eval_trilinear_point(model, A, B, C, '(tan(A))/(b + c)', ID="X_28", classes=["center", "incident"])
            X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center", "incident"])
            central_line(model, X_28, X_54, 28, 54, incident=True)
            X_71 = eval_trilinear_point(model, A, B, C, '(b + c)*cos(A)', ID="X_71", classes=["center", "incident"])
            X_517 = eval_trilinear_point(model, A, B, C, '-1 + cos(B) + cos(C)', ID="X_517", classes=["center", "incident"])
            central_line(model, X_71, X_517, 71, 517, incident=True)
            return promote_point_to_top(model, X_1243)


        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_1243 on the given reference triangle."""
            model = create_model('X_1243 = ISOGONAL CONJUGATE OF X_1006')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01243(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-01243.json"))
            write_center_svg(
                model_acute,
                here / "x-01243.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )