X82

ISOGONAL CONJUGATE OF X38

< 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) { 31, 75 }: Central Line L(31, 75) { 10, 83 }: Central Line L(10, 83) { 37, 251 }: Central Line L(37, 251) { 1, 560 }: Central Line L(1, 560) { 58, 596 }: Central Line L(58, 596) { 689, 715 }: Central Line L(689, 715) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_83 = CEVAPOINT OF CENTROID AND SYMMEDIAN POINT (0.5651, 0.2360) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_251 = ISOGONAL CONJUGATE OF X(141) (0.6177, 0.3042) X_1 = INCENTER (0.5714, 0.2333) X_560 = 4th POWER POINT (0.6520, 0.3639) X_58 = ISOGONAL CONJUGATE OF X(10) (0.6107, 0.2850) X_596 = ISOGONAL CONJUGATE OF X(595) (0.4466, 0.1390) X_689 = TRILINEAR POLE OF LINE X(6)X(76) (0.0585, 0.3579) X_715 = EVEN (- 3, - 1) CIRCUMCIRCLE POINT (1.0000, 0.2040) X_82 = ISOGONAL CONJUGATE OF X(38) (0.5943, 0.2703) A B C X38 X31 X75 X10 X83 X37 X251 X1 X560 X58 X596 X689 X715 X82 (a, b, c) = (5, 6, 7) | AB = 1

X82 (ISOGONAL CONJUGATE OF X38) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_82 = ISOGONAL CONJUGATE OF X_38."""

        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,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00082(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_82 = ISOGONAL CONJUGATE OF X_38 on reference triangle ABC."""
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", classes=["center"])
            X_82 = isogonal_conjugate(model, A, B, C, X_38, ID="X_82", classes=["selected", "target"])
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            central_line(model, X_31, X_75, 31, 75, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_83 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) + c**(2))', ID="X_83", classes=["center", "incident"])
            central_line(model, X_10, X_83, 10, 83, incident=True)
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            X_251 = eval_trilinear_point(model, A, B, C, 'a**(2)*csc(A +  omega  )', ID="X_251", classes=["center", "incident"])
            central_line(model, X_37, X_251, 37, 251, incident=True)
            return promote_point_to_top(model, X_82)


        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_82 on the given reference triangle."""
            model = create_model('X_82 = ISOGONAL CONJUGATE OF X_38')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00082(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-00082.json"))
            write_center_svg(
                model_acute,
                here / "x-00082.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )