X3254

REFLECTION OF X9 IN X11

X3254 is the reflection of X9 in X11.
< 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) { 9, 11 }: Central Line L(9, 11) { 7, 149 }: Central Line L(7, 149) { 100, 142 }: Central Line L(100, 142) { 1, 528 }: Central Line L(1, 528) { 80, 518 }: Central Line L(80, 518) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_9 = MITTENPUNKT (0.5110, 0.1615) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_7 = GERGONNE POINT (0.5903, 0.2769) X_149 = REFLECTION OF X(20) IN X(104) (1.3265, -0.3333) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_142 = COMPLEMENT OF X(9) (0.5506, 0.2192) X_1 = INCENTER (0.5714, 0.2333) X_528 = DIRECTION OF VECTOR AX + BX + CX, where X = X(11) (1.0237, -0.1286) X_80 = REFLECTION OF INCENTER IN FEUERBACH POINT (0.8980, -0.1000) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_3254 = REFLECTION OF X(9) IN X(11) (0.9584, -0.0282) A B C X9 X11 X7 X149 X100 X142 X1 X528 X80 X518 X3254 (a, b, c) = (5, 6, 7) | AB = 1

X3254 (REFLECTION OF X9 IN X11) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3254 = REFLECTION OF X_9 IN X_11."""

        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,
            gergonne_point_of,
            midpoint,
            mittenpunkt_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03254(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3254 = REFLECTION OF X_9 IN X_11 on reference triangle ABC."""
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center"])
            X_149 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(3) + c**(3) - a**(3) + (a**(2) - b*c)*(b + c) + a*(b*c - b**(2) - c**(2))))', ID="X_149", classes=["center"])
            X_3254 = midpoint(model, X_7, X_149, ID="X_3254", classes=["selected", "target"], guide=False)
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            central_line(model, X_9, X_11, 9, 11, incident=True)
            central_line(model, X_7, X_149, 7, 149, incident=True)
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            X_142 = eval_trilinear_point(model, A, B, C, 'b + c - ((b - c)**(2))/a', ID="X_142", classes=["center", "incident"])
            central_line(model, X_100, X_142, 100, 142, incident=True)
            return promote_point_to_top(model, X_3254)


        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_3254 on the given reference triangle."""
            model = create_model('X_3254 = REFLECTION OF X_9 IN X_11')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03254(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-03254.json"))
            write_center_svg(
                model_acute,
                here / "x-03254.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )