X875

ISOGONAL CONJUGATE OF X874

< 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, 512 }: Central Line L(1, 512) { 42, 649 }: Central Line L(42, 649) { 31, 669 }: Central Line L(31, 669) { 213, 667 }: Central Line L(213, 667) { 291, 659 }: Central Line L(291, 659) { 295, 926 }: Central Line L(295, 926) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_874 = INTERSECTION OF LINES X(1)X(75) AND X(99)X(670) (-2.0525, -2.1172) X_1 = INCENTER (0.5714, 0.2333) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_649 = CROSSDIFFERENCE OF X(1) and X(2) (-21.0000, 14.6969) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_669 = CROSSDIFFERENCE OF X(2) AND X(39) (-4.3514, 4.6163) X_213 = -CEVA CONJUGATE OF X(42) (0.6135, 0.2833) X_667 = CROSSDIFFERENCE OF X(2) AND X(37) (-6.1667, 5.7155) X_291 = 2nd SHARYGIN POINT (1.0249, 0.0364) X_659 = CROSSDIFFERENCE OF X(1) AND X(39) (1.9286, 2.2162) X_295 = ISOGONAL CONJUGATE OF X(242) (1.0582, 0.0142) X_926 = CROSSDIFFERENCE OF X(6) AND X(7) (0.0512, -0.1286) X_875 = ISOGONAL CONJUGATE OF X(874) (0.9992, -0.0257) A B C X874 X1 X512 X42 X649 X31 X669 X213 X667 X291 X659 X295 X926 X875 (a, b, c) = (5, 6, 7) | AB = 1

X875 (ISOGONAL CONJUGATE OF X874) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_875 = ISOGONAL CONJUGATE OF X_874."""

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


        def construct_x_00875(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_875 = ISOGONAL CONJUGATE OF X_874 on reference triangle ABC."""
            X_874 = point_from_barycentrics(model, A, B, C, 4.4210526, 0.10835913, -3.5294118, ID="X_874", classes=["center"])
            X_875 = isogonal_conjugate(model, A, B, C, X_874, ID="X_875", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
            central_line(model, X_1, X_512, 1, 512, incident=True)
            X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
            X_649 = eval_trilinear_point(model, A, B, C, 'a*(b - c)', ID="X_649", classes=["center", "incident"])
            central_line(model, X_42, X_649, 42, 649, incident=True)
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_669 = eval_trilinear_point(model, A, B, C, 'a**(3)*(b**(2) - c**(2))', ID="X_669", classes=["center", "incident"])
            central_line(model, X_31, X_669, 31, 669, incident=True)
            return promote_point_to_top(model, X_875)


        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_875 on the given reference triangle."""
            model = create_model('X_875 = ISOGONAL CONJUGATE OF X_874')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00875(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-00875.json"))
            write_center_svg(
                model_acute,
                here / "x-00875.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )