X3057

INTERSECTION OF LINES X1X_3 AND X10X_11

< 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) { 1, 3 }: OI Line (Incenter–Circumcenter Line) { 10, 11 }: Central Line L(10, 11) { 8, 210 }: Central Line L(8, 210) { 144, 145 }: Central Line L(144, 145) { 45, 374 }: Central Line L(45, 374) { 72, 519 }: Central Line L(72, 519) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1476 = -BETH CONJUGATE OF X(1222) (0.5968, 0.2987) X_1 = INCENTER (0.5714, 0.2333) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_8 = NAGEL POINT (0.4694, 0.1333) X_210 = -CEVA CONJUGATE OF X(37) (0.4925, 0.1466) X_144 = ANTICOMPLEMENT OF X(7) (0.4317, 0.0461) X_145 = ANTICOMPLEMENT OF NAGEL POINT (0.6735, 0.3333) X_45 = -BETH CONJUGATE OF X(1) (0.5418, 0.1981) X_374 = CENTROID OF THE PEDAL TRIANGLE OF X(9) (0.5449, 0.2238) X_72 = ISOGONAL CONJUGATE OF X(28) (0.4367, 0.0733) X_519 = ISOGONAL CONJUGATE OF X(106) (0.9566, 0.6107) X_3057 = INTERSECTION OF LINES X(1)X(3) AND X(10)X(11) (0.5388, 0.1733) A B C X1476 X1 X3 X10 X11 X8 X210 X144 X145 X45 X374 X72 X519 X3057 (a, b, c) = (5, 6, 7) | AB = 1

X3057 (INTERSECTION OF LINES X1X_3 AND X10X_11) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3057 = INTERSECTION OF LINES X_1X_3 AND X_10X_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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            feuerbach_point_of,
            incenter_of,
            isogonal_conjugate,
            nagel_point_of,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03057(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3057 = INTERSECTION OF LINES X_1X_3 AND X_10X_11 on reference triangle ABC."""
            X_1476 = eval_trilinear_point(model, A, B, C, '1/(a**(2)*((sin(B/2))**(2) + (sin(C/2))**(2)))', ID="X_1476", classes=["center"])
            X_3057 = isogonal_conjugate(model, A, B, C, X_1476, ID="X_3057", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            central_line(model, X_1, X_3, 1, 3, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            central_line(model, X_10, X_11, 10, 11, incident=True)
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            X_210 = eval_trilinear_point(model, A, B, C, '(b + c)*(b + c - a)', ID="X_210", classes=["center", "incident"])
            central_line(model, X_8, X_210, 8, 210, incident=True)
            return promote_point_to_top(model, X_3057)


        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_3057 on the given reference triangle."""
            model = create_model('X_3057 = INTERSECTION OF LINES X_1X_3 AND X_10X_11')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03057(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-03057.json"))
            write_center_svg(
                model_acute,
                here / "x-03057.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )