X2270

X2-ISOCONJUGATE OF X963

< 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) { 4, 9 }: Orthocenter–Spieker Line { 6, 57 }: Central Line L(6, 57) { 1, 198 }: Central Line L(1, 198) { 63, 391 }: Central Line L(63, 391) { 165, 374 }: Central Line L(165, 374) { 208, 1249 }: Central Line L(208, 1249) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_189 = CYCLOCEVIAN CONJUGATE OF X(8) (0.6131, 0.7055) X_1 = INCENTER (0.5714, 0.2333) X_4 = ORTHOCENTER (0.6122, 0.3958) X_9 = MITTENPUNKT (0.5110, 0.1615) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_198 = -CEVA CONJUGATE OF X(6) (0.4741, -0.0381) X_63 = ISOGONAL CONJUGATE OF X(19) (0.4566, 0.0823) X_391 = INTERSECTION OF LINES X(2,6) AND X(8,9) (0.4857, 0.1443) X_165 = CENTROID OF THE EXCENTRAL TRIANGLE (0.4762, 0.0583) X_374 = CENTROID OF THE PEDAL TRIANGLE OF X(9) (0.5449, 0.2238) X_208 = -CEVA CONJUGATE OF X(34) (0.6242, -0.2728) X_1249 = ISOGONAL CONJUGATE OF X(1073) (-0.9482, -15.9845) X_2270 = -ISOCONJUGATE OF X(963) (0.7148, 0.6331) A B C X189 X1 X4 X9 X6 X57 X198 X63 X391 X165 X374 X208 X1249 X2270 (a, b, c) = (5, 6, 7) | AB = 1

X2270 (X2-ISOCONJUGATE OF X963) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2270 = X_2-ISOCONJUGATE OF X_963."""

        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,
            ceva_conjugate,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            incenter_of,
            mittenpunkt_of,
            orthocenter_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02270(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2270 = X_2-ISOCONJUGATE OF X_963 on reference triangle ABC."""
            X_189 = eval_trilinear_point(model, A, B, C, 'b*c/(cos(B) + cos(C) - cos(A) - 1)', ID="X_189", classes=["center"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
            X_2270 = ceva_conjugate(model, A, B, C, X_189, X_1, ID="X_2270", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            central_line(model, X_4, X_9, 4, 9, incident=True)
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
            central_line(model, X_6, X_57, 6, 57, incident=True)
            X_198 = eval_trilinear_point(model, A, B, C, '(a*(cos(B) + cos(C) - cos(A) - 1))', ID="X_198", classes=["center", "incident"])
            central_line(model, X_1, X_198, 1, 198, incident=True)
            return promote_point_to_top(model, X_2270)


        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_2270 on the given reference triangle."""
            model = create_model('X_2270 = X_2-ISOCONJUGATE OF X_963')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02270(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-02270.json"))
            write_center_svg(
                model_acute,
                here / "x-02270.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )