X3093

INTERSECTION OF LINES X2X_1578 AND X4X_6

X3093 = {X4,X6}-harmonic conjugate of X3092
< 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, 6 }: Van Aubel Line { 25, 372 }: Central Line L(25, 372) { 235, 486 }: Central Line L(235, 486) { 427, 485 }: Central Line L(427, 485) { 394, 638 }: Central Line L(394, 638) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3092 = INTERSECTION OF LINES X(2)X(1579) AND X(4)X(6) (0.6095, 0.3668) X_4 = ORTHOCENTER (0.6122, 0.3958) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_372 = {X(3),X(6)}-HARMONIC CONJUGATE OF X(371) (0.7148, 0.4568) X_235 = -CEVA CONJUGATE OF X(185) (0.6375, 0.4618) X_486 = INNER VECTEN POINT (-0.0810, -0.0170) X_427 = COMPLEMENT OF X(22) (0.5990, 0.3610) X_485 = VECTEN POINT (0.5773, 0.2578) X_394 = -CEVA CONJUGATE OF X(3) (0.3778, 0.0284) X_638 = ANTICOMPLEMENT OF X(372) (0.1827, -0.3137) X_3093 = INTERSECTION OF LINES X(2)X(1578) AND X(4)X(6) (0.6173, 0.4483) A B C X3092 X4 X6 X25 X372 X235 X486 X427 X485 X394 X638 X3093 (a, b, c) = (5, 6, 7) | AB = 1

X3093 (INTERSECTION OF LINES X2X_1578 AND X4X_6) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3093 = INTERSECTION OF LINES X_2X_1578 AND X_4X_6."""

        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,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03093(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3093 = INTERSECTION OF LINES X_2X_1578 AND X_4X_6 on reference triangle ABC."""
            X_3093 = eval_trilinear_point(model, A, B, C, '(sin(A) - sec(A))', ID="X_3093", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_4, X_6, 4, 6, incident=True)
            X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
            X_372 = eval_trilinear_point(model, A, B, C, 'cos(A +  pi  /4)', ID="X_372", classes=["center", "incident"])
            central_line(model, X_25, X_372, 25, 372, incident=True)
            X_235 = eval_trilinear_point(model, A, B, C, 'sec(A) - cos(B - C)', ID="X_235", classes=["center", "incident"])
            X_486 = eval_trilinear_point(model, A, B, C, 'sec(A +  pi  /4)', ID="X_486", classes=["center", "incident"])
            central_line(model, X_235, X_486, 235, 486, incident=True)
            return promote_point_to_top(model, X_3093)


        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_3093 on the given reference triangle."""
            model = create_model('X_3093 = INTERSECTION OF LINES X_2X_1578 AND X_4X_6')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03093(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-03093.json"))
            write_center_svg(
                model_acute,
                here / "x-03093.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )