X3140

X105-CEVA CONJUGATE OF X523

< 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 { 11, 115 }: Central Line L(11, 115) { 125, 2775 }: Central Line L(125, 2775) { 339, 2969 }: Central Line L(339, 2969) { 2968, 2971 }: Central Line L(2968, 2971) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_115 = CENTER OF KIEPERT HYPERBOLA (0.7507, 0.0838) X_125 = CENTER OF JERABEK HYPERBOLA (0.6803, 0.0260) X_2775 = ISOGONAL CONJUGATE OF X(2691) (0.9278, 0.6382) X_339 = ISOTOMIC CONJUGATE OF X(250) (0.6002, 0.0170) X_2969 = 3rd MACBEATH POINT (0.7614, 0.2435) X_2968 = 2nd MACBEATH POINT (0.5881, 0.0121) X_2971 = 5th MACBEATH POINT (0.7640, 0.2670) X_3140 = -CEVA CONJUGATE OF X(523) (0.3136, -0.3857) A B C X105 X523 X2 X3 X11 X115 X125 X2775 X339 X2969 X2968 X2971 X3140 (a, b, c) = (5, 6, 7) | AB = 1

X3140 (X105-CEVA CONJUGATE OF X523) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3140 = X_105-CEVA CONJUGATE OF X_523."""

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


        def construct_x_03140(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3140 = X_105-CEVA CONJUGATE OF X_523 on reference triangle ABC."""
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center"])
            X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center"])
            X_3140 = ceva_conjugate(model, A, B, C, X_105, X_523, ID="X_3140", 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_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            X_115 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) - c**(2))**(2)', ID="X_115", classes=["center", "incident"])
            central_line(model, X_11, X_115, 11, 115, incident=True)
            X_125 = eval_trilinear_point(model, A, B, C, 'cos(A)*(sin(B - C))**(2)', ID="X_125", classes=["center", "incident"])
            X_2775 = point_from_barycentrics(model, A, B, C, -0.67677389, -0.05719216, 0.73396605, ID="X_2775", classes=["center", "incident"])
            central_line(model, X_125, X_2775, 125, 2775, incident=True)
            return promote_point_to_top(model, X_3140)


        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_3140 on the given reference triangle."""
            model = create_model('X_3140 = X_105-CEVA CONJUGATE OF X_523')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03140(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-03140.json"))
            write_center_svg(
                model_acute,
                here / "x-03140.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )