X671

TRILINEAR POLE OF LINE X2X_523

X671 = polar conjugate of X468
< 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) { 2, 99 }: Central Line L(2, 99) { 30, 98 }: Central Line L(30, 98) { 10, 190 }: Central Line L(10, 190) { 76, 338 }: Central Line L(76, 338) { 13, 531 }: Central Line L(13, 531) { 14, 530 }: Central Line L(14, 530) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_99 = STEINER POINT (0.1109, 0.4322) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_98 = TARRY POINT (0.8891, -0.2281) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_338 = CEVAPOINT OF X(115) AND X(125) (0.6941, 0.0587) X_13 = 1st ISOGONIC CENTER (FERMAT POINT, TORRICELLI POINT) (0.5879, 0.2819) X_531 = DIRECTION OF VECTOR AX + BX + CX, where X = X(14) (0.9877, -0.1764) X_14 = 2nd ISOGONIC CENTER (0.9134, -0.1143) X_530 = DIRECTION OF VECTOR AX + BX + CX, where X = X(13) (0.8451, 0.6997) X_671 = TRILINEAR POLE OF LINE X(2)X(523) (0.9639, -0.0323) A B C X2 X99 X30 X98 X10 X190 X76 X338 X13 X531 X14 X530 X671 (a, b, c) = (5, 6, 7) | AB = 1

X671 (TRILINEAR POLE OF LINE X2X_523) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_671 = TRILINEAR POLE OF LINE X_2X_523."""

        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,
            centroid_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            isogonal_conjugate,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00671(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_671 = TRILINEAR POLE OF LINE X_2X_523 on reference triangle ABC."""
            X_187 = eval_trilinear_point(model, A, B, C, 'a*(2*a**(2) - b**(2) - c**(2))', ID="X_187", classes=["center"])
            X_671 = isogonal_conjugate(model, A, B, C, X_187, ID="X_671", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            central_line(model, X_2, X_99, 2, 99, incident=True)
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_98 = eval_trilinear_point(model, A, B, C, 'sec(A +  omega  )', ID="X_98", classes=["center", "incident"])
            central_line(model, X_30, X_98, 30, 98, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_190 = eval_trilinear_point(model, A, B, C, 'b*c/(b - c)', ID="X_190", classes=["center", "incident"])
            central_line(model, X_10, X_190, 10, 190, incident=True)
            return promote_point_to_top(model, X_671)


        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_671 on the given reference triangle."""
            model = create_model('X_671 = TRILINEAR POLE OF LINE X_2X_523')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00671(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-00671.json"))
            write_center_svg(
                model_acute,
                here / "x-00671.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )