X3573

TRILINEAR PRODUCT X6*X3570

< 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, 21 }: Central Line L(1, 21) { 100, 101 }: Central Line L(100, 101) { 99, 110 }: Central Line L(99, 110) { 109, 932 }: Central Line L(109, 932) { 2, 1083 }: Central Line L(2, 1083) { 666, 885 }: Central Line L(666, 885) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_659 = CROSSDIFFERENCE OF X(1) AND X(39) (1.9286, 2.2162) X_1 = INCENTER (0.5714, 0.2333) X_21 = SCHIFFLER POINT (0.5287, 0.1771) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_99 = STEINER POINT (0.1109, 0.4322) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_932 = -CROSS CONJUGATE OF X(100) (0.0354, 0.3132) X_2 = CENTROID (0.5374, 0.2000) X_1083 = MIDPOINT OF X(105) AND X(644) (0.4771, 0.1213) X_666 = TRILINEAR POLE OF LINE X(2)X(11) (1.0982, 0.1428) X_885 = ISOTOMIC CONJUGATE OF X(883) (1.0518, 0.0256) X_3573 = TRILINEAR PRODUCT X(6)*X(3570) (1.7429, 1.7730) A B C X238 X659 X1 X21 X100 X101 X99 X110 X109 X932 X2 X1083 X666 X885 X3573 (a, b, c) = (5, 6, 7) | AB = 1

X3573 (TRILINEAR PRODUCT X6*X3570) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3573 = TRILINEAR PRODUCT X_6*X_3570."""

        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,
            incenter_of,
            isogonal_conjugate,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03573(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3573 = TRILINEAR PRODUCT X_6*X_3570 on reference triangle ABC."""
            X_876 = point_from_barycentrics(model, A, B, C, 0.024662513, 1.0062305, -0.030893043, ID="X_876", classes=["center"])
            X_3573 = isogonal_conjugate(model, A, B, C, X_876, ID="X_3573", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
            central_line(model, X_1, X_21, 1, 21, incident=True)
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
            central_line(model, X_100, X_101, 100, 101, incident=True)
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", 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_99, X_110, 99, 110, incident=True)
            return promote_point_to_top(model, X_3573)


        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_3573 on the given reference triangle."""
            model = create_model('X_3573 = TRILINEAR PRODUCT X_6*X_3570')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03573(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-03573.json"))
            write_center_svg(
                model_acute,
                here / "x-03573.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )