X3024

8th STEVANOVIC POINT

X3024 = reflection of X3028 in X1
< 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) { 3028, 1 }: Central Line L(3028, 1) { 12, 113 }: Central Line L(12, 113) { 56, 74 }: Central Line L(56, 74) { 11, 125 }: Central Line L(11, 125) { 146, 388 }: Central Line L(146, 388) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3028 = INCIRCLE-ANTIPODE OF X(3024) (0.4579, 0.4371) X_1 = INCENTER (0.5714, 0.2333) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_113 = JERABEK ANTIPODE (0.4319, 0.4718) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_74 = ISOGONAL CONJUGATE OF EULER INFINITY POINT (0.7484, -0.3437) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_125 = CENTER OF JERABEK HYPERBOLA (0.6803, 0.0260) X_146 = REFLECTION OF X(20) IN X(110) (0.1155, 1.2873) X_388 = ∩X(7)X(8) (0.5790, 0.2635) X_3024 = 8th STEVANOVIC POINT (0.6850, 0.0295) A B C X3028 X1 X12 X113 X56 X74 X11 X125 X146 X388 X3024 (a, b, c) = (5, 6, 7) | AB = 1

X3024 (8th STEVANOVIC POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3024 = 8th STEVANOVIC POINT."""

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


        def construct_x_03024(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3024 = 8th STEVANOVIC POINT on reference triangle ABC."""
            X_3024 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)*(b - c)**(2)*(b**(2) + c**(2) - a**(2) + b*c)**(2)', ID="X_3024", classes=["selected", "target"])
            X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center", "incident"])
            X_113 = eval_trilinear_point(model, A, B, C, 'sin(B)*sin(C)*((sin(C))/(cos(C) - 2*cos(A)*cos(B)) + (sin(B))/(cos(B) - 2*cos(A)*cos(C)))', ID="X_113", classes=["center", "incident"])
            central_line(model, X_12, X_113, 12, 113, incident=True)
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
            X_74 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - 2*cos(B)*cos(C))', ID="X_74", classes=["center", "incident"])
            central_line(model, X_56, X_74, 56, 74, incident=True)
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            X_125 = eval_trilinear_point(model, A, B, C, 'cos(A)*(sin(B - C))**(2)', ID="X_125", classes=["center", "incident"])
            central_line(model, X_11, X_125, 11, 125, incident=True)
            return promote_point_to_top(model, X_3024)


        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_3024 on the given reference triangle."""
            model = create_model('X_3024 = 8th STEVANOVIC POINT')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03024(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-03024.json"))
            write_center_svg(
                model_acute,
                here / "x-03024.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )