X897

ISOGONAL CONJUGATE OF X896

< 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) { 37, 100 }: Central Line L(37, 100) { 19, 162 }: Central Line L(19, 162) { 10, 190 }: Central Line L(10, 190) { 1, 662 }: Central Line L(1, 662) { 65, 651 }: Central Line L(65, 651) { 75, 799 }: Central Line L(75, 799) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_896 = INTERSECTION OF LINES X(1)X(21) AND X(9)X(750) (2.0357, 2.1579) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_19 = CLAWSON POINT (0.6246, 0.4244) X_162 = CEVAPOINT OF X(108) AND X(109) (0.4897, 0.6018) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_1 = INCENTER (0.5714, 0.2333) X_662 = TRILINEAR POLE OF LINE X(1)X(21) (0.1811, 0.4951) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_799 = ISOGONAL CONJUGATE OF X(798) (0.0470, 0.3636) X_897 = ISOGONAL CONJUGATE OF X(896) (0.9765, -0.0384) A B C X896 X37 X100 X19 X162 X10 X190 X1 X662 X65 X651 X75 X799 X897 (a, b, c) = (5, 6, 7) | AB = 1

X897 (ISOGONAL CONJUGATE OF X896) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_897 = ISOGONAL CONJUGATE OF X_896."""

        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_00897(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_897 = ISOGONAL CONJUGATE OF X_896 on reference triangle ABC."""
            X_896 = eval_trilinear_point(model, A, B, C, '2*a**(2) - b**(2) - c**(2)', ID="X_896", classes=["center"])
            X_897 = isogonal_conjugate(model, A, B, C, X_896, ID="X_897", classes=["selected", "target"])
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            central_line(model, X_37, X_100, 37, 100, incident=True)
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            X_162 = eval_trilinear_point(model, A, B, C, '1/(sin(2*B) - sin(2*C))', ID="X_162", classes=["center", "incident"])
            central_line(model, X_19, X_162, 19, 162, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_190 = eval_trilinear_point(model, A, B, C, 'b*c/(b - c)', ID="X_190", classes=["center", "incident"])
            central_line(model, X_10, X_190, 10, 190, incident=True)
            return promote_point_to_top(model, X_897)


        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_897 on the given reference triangle."""
            model = create_model('X_897 = ISOGONAL CONJUGATE OF X_896')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00897(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-00897.json"))
            write_center_svg(
                model_acute,
                here / "x-00897.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )