X3043

INTERSECTION X4X_110∩X74X_184

X3043 = reflection of X3047 in X49
< 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) { 3047, 49 }: Central Line L(3047, 49) { 4, 110 }: Central Line L(4, 110) { 54, 125 }: Central Line L(54, 125) { 74, 184 }: Central Line L(74, 184) { 186, 323 }: Central Line L(186, 323) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3047 = INTERSECTION X(54)X(113)∩X(2)X(98) (0.7807, -0.0962) X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.6275, 0.1789) X_4 = ORTHOCENTER (0.6122, 0.3958) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_54 = KOSNITA POINT (0.5880, 0.2176) X_125 = CENTER OF JERABEK HYPERBOLA (0.6803, 0.0260) X_74 = ISOGONAL CONJUGATE OF EULER INFINITY POINT (0.7484, -0.3437) X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496) X_186 = INVERSE-IN-CIRCUMCIRCLE OF X(4) (0.7957, 0.8758) X_323 = ISOTOMIC CONJUGATE OF X(94) (-0.8839, -1.3275) X_3043 = INTERSECTION X(4)X(110)∩X(74)X(184) (0.4742, 0.4540) A B C X3047 X49 X4 X110 X54 X125 X74 X184 X186 X323 X3043 (a, b, c) = (5, 6, 7) | AB = 1

X3043 (INTERSECTION X4X_110∩X74X_184) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3043 = INTERSECTION X_4X_110∩X_74X_184."""

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


        def construct_x_03043(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3043 = INTERSECTION X_4X_110∩X_74X_184 on reference triangle ABC."""
            X_3043 = eval_trilinear_point(model, A, B, C, '((1 - 4*(cos(A))**(2))**(2)*sec(A))', ID="X_3043", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
            central_line(model, X_4, X_110, 4, 110, incident=True)
            X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", 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_54, X_125, 54, 125, incident=True)
            X_74 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - 2*cos(B)*cos(C))', ID="X_74", classes=["center", "incident"])
            X_184 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A)', ID="X_184", classes=["center", "incident"])
            central_line(model, X_74, X_184, 74, 184, incident=True)
            return promote_point_to_top(model, X_3043)


        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_3043 on the given reference triangle."""
            model = create_model('X_3043 = INTERSECTION X_4X_110∩X_74X_184')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03043(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-03043.json"))
            write_center_svg(
                model_acute,
                here / "x-03043.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )