X199

X10-CEVA CONJUGATE OF X6

< 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) { 2, 3 }: Euler Line { 42, 172 }: Central Line L(42, 172) { 51, 572 }: Central Line L(51, 572) { 184, 573 }: Central Line L(184, 573) { 55, 1030 }: Central Line L(55, 1030) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_172 = TRILINEAR PRODUCT X(6)*X(171) (0.6080, 0.2866) X_51 = CENTROID OF ORTHIC TRIANGLE (0.6093, 0.3186) X_572 = ORTHOGONAL OF X(58) (7.2953, -0.6907) X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496) X_573 = ORTHOHARMONIC OF X(58) (0.4583, 0.2009) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_1030 = ISOGONAL CONJUGATE OF X(1029) (0.5271, 0.1468) X_199 = -CEVA CONJUGATE OF X(6) (0.4796, 0.0487) A B C X10 X6 X2 X3 X42 X172 X51 X572 X184 X573 X55 X1030 X199 (a, b, c) = (5, 6, 7) | AB = 1

X199 (X10-CEVA CONJUGATE OF X6) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_199 = X_10-CEVA CONJUGATE OF X_6."""

        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,
            centroid_of,
            ceva_conjugate,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
            spieker_center_of,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00199(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_199 = X_10-CEVA CONJUGATE OF X_6 on reference triangle ABC."""
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_199 = ceva_conjugate(model, A, B, C, X_10, X_6, ID="X_199", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
            X_172 = eval_trilinear_point(model, A, B, C, 'a**(3) + a*b*c', ID="X_172", classes=["center", "incident"])
            central_line(model, X_42, X_172, 42, 172, incident=True)
            X_51 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(B - C)', ID="X_51", classes=["center", "incident"])
            X_572 = eval_trilinear_point(model, A, B, C, '(cos(A - U))', ID="X_572", classes=["center", "incident"])
            central_line(model, X_51, X_572, 51, 572, incident=True)
            return promote_point_to_top(model, X_199)


        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_199 on the given reference triangle."""
            model = create_model('X_199 = X_10-CEVA CONJUGATE OF X_6')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00199(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-00199.json"))
            write_center_svg(
                model_acute,
                here / "x-00199.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )