X3216

X58-CEVA CONJUGATE OF X1

X3216 = midpoint of X1201 and X3214
< 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) { 1201, 3214 }: Nagel Line { 1, 2 }: Nagel Line { 35, 238 }: Central Line L(35, 238) { 58, 404 }: Central Line L(58, 404) { 6, 474 }: Central Line L(6, 474) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1201 = 3rd SARAGOSSA POINT OF X(56) (0.6184, 0.2793) X_3214 = -CEVA CONJUGATE OF X(37) (0.7124, 0.3714) X_1 = INCENTER (0.5714, 0.2333) X_2 = CENTROID (0.5374, 0.2000) X_35 = {X(1),X(3)}-HARMONIC CONJUGATE OF X(36) (0.5373, 0.1706) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_58 = ISOGONAL CONJUGATE OF X(10) (0.6107, 0.2850) X_404 = {X(2),X(3)}-HARMONIC CONJUGATE OF X(21) (0.5538, 0.2429) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_474 = EULER LINE INTERCEPT OF LINE X(10)X(56) (0.5441, 0.2176) X_3216 = -CEVA CONJUGATE OF X(1) (0.6654, 0.3254) A B C X1201 X3214 X1 X2 X35 X238 X58 X404 X6 X474 X3216 (a, b, c) = (5, 6, 7) | AB = 1

X3216 (X58-CEVA CONJUGATE OF X1) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3216 = X_58-CEVA CONJUGATE OF X_1."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            incenter_of,
            midpoint,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03216(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3216 = X_58-CEVA CONJUGATE OF X_1 on reference triangle ABC."""
            X_1201 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) + c**(2) - 2*b*c + a*b + a*c))', ID="X_1201", classes=["center"])
            X_3214 = eval_trilinear_point(model, A, B, C, '((b + c)*(a**(2) + a*b + a*c - 2*b*c))', ID="X_3214", classes=["center"])
            X_3216 = midpoint(model, X_1201, X_3214, ID="X_3216", classes=["selected", "target"], guide=False)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            central_line(model, X_1, X_2, 1, 2, incident=True)
            X_35 = eval_trilinear_point(model, A, B, C, '1 + 2*cos(A)', ID="X_35", classes=["center", "incident"])
            X_238 = eval_trilinear_point(model, A, B, C, 'a**(2) - b*c', ID="X_238", classes=["center", "incident"])
            central_line(model, X_35, X_238, 35, 238, incident=True)
            X_58 = eval_trilinear_point(model, A, B, C, 'a/(b + c)', ID="X_58", classes=["center", "incident"])
            X_404 = eval_trilinear_point(model, A, B, C, '(b*c*(a + b + c) - a*(b**(2) + c**(2) - a**(2)))', ID="X_404", classes=["center", "incident"])
            central_line(model, X_58, X_404, 58, 404, incident=True)
            return promote_point_to_top(model, X_3216)


        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_3216 on the given reference triangle."""
            model = create_model('X_3216 = X_58-CEVA CONJUGATE OF X_1')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03216(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-03216.json"))
            write_center_svg(
                model_acute,
                here / "x-03216.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )