X3186

X25-CEVA CONJUGATE OF X4

< 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, 69 }: Central Line L(4, 69) { 1, 242 }: Central Line L(1, 242) { 25, 385 }: Central Line L(25, 385) { 6, 419 }: Central Line L(6, 419) { 232, 800 }: Central Line L(232, 800) { 393, 694 }: Central Line L(393, 694) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_4 = ORTHOCENTER (0.6122, 0.3958) X_69 = SYMMEDIAN POINT OF THE ANTICOMPLEMENTARY TRIANGLE (0.4122, 0.0654) X_1 = INCENTER (0.5714, 0.2333) X_242 = -LINE CONJUGATE OF X(71) (0.7507, 0.7161) X_385 = -HIRST INVERSE OF X(6) (2.2863, 2.0795) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_419 = -HIRST INVERSE OF X(25) (0.7266, 0.6950) X_232 = -CEVA CONJUGATE OF X(132) (0.6919, 0.7779) X_800 = CROSSPOINT OF X(2) AND X(64) (0.6501, 0.3499) X_393 = -CROSS CONJUGATE OF X(4) (0.6247, 0.5263) X_694 = ISOGONAL CONJUGATE OF X(385) (1.0179, 0.0378) X_3186 = -CEVA CONJUGATE OF X(4) (0.6627, 0.4791) A B C X25 X4 X69 X1 X242 X385 X6 X419 X232 X800 X393 X694 X3186 (a, b, c) = (5, 6, 7) | AB = 1

X3186 (X25-CEVA CONJUGATE OF X4) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3186 = X_25-CEVA CONJUGATE OF X_4."""

        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,
            incenter_of,
            orthocenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03186(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3186 = X_25-CEVA CONJUGATE OF X_4 on reference triangle ABC."""
            X_3186 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(2)*c**(2) - a**(2)*b**(2) - a**(2)*c**(2))/(b**(2) + c**(2) - a**(2)))', ID="X_3186", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            central_line(model, X_4, X_69, 4, 69, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_242 = eval_trilinear_point(model, A, B, C, '((sec(A))*((sin(A))**(2) - sin(B)*sin(C)))', ID="X_242", classes=["center", "incident"])
            central_line(model, X_1, X_242, 1, 242, incident=True)
            X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
            X_385 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(4) - b**(2)*c**(2))', ID="X_385", classes=["center", "incident"])
            central_line(model, X_25, X_385, 25, 385, incident=True)
            return promote_point_to_top(model, X_3186)


        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_3186 on the given reference triangle."""
            model = create_model('X_3186 = X_25-CEVA CONJUGATE OF X_4')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03186(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-03186.json"))
            write_center_svg(
                model_acute,
                here / "x-03186.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )