X1582

POINT CANOPUS

X1582 = crosssum of PU(35)
< 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, 19 }: Central Line L(1, 19) { 6, 291 }: Central Line L(6, 291) { 75, 560 }: Central Line L(75, 560) { 82, 662 }: Central Line L(82, 662) { 238, 992 }: Central Line L(238, 992) { 978, 1472 }: Central Line L(978, 1472) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1967 = TRILINEAR POLE OF PU(36) (1.0067, 0.0434) X_1580 = POINT ALUDRA (1.3094, 1.2033) X_1 = INCENTER (0.5714, 0.2333) X_19 = CLAWSON POINT (0.6246, 0.4244) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_291 = 2nd SHARYGIN POINT (1.0249, 0.0364) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_560 = 4th POWER POINT (0.6520, 0.3639) X_82 = ISOGONAL CONJUGATE OF X(38) (0.5943, 0.2703) X_662 = TRILINEAR POLE OF LINE X(1)X(21) (0.1811, 0.4951) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_992 = INTERSECTION OF LINES X(2)X(6) AND X(9)X(39) (0.2678, -0.0897) X_978 = -CEVA CONJUGATE OF X(1) (0.7456, 0.4040) X_1472 = -BETH CONJUGATE OF X(1036) (0.6306, 0.3134) X_1582 = POINT CANOPUS (0.5834, 0.2762) A B C X1967 X1580 X1 X19 X6 X291 X75 X560 X82 X662 X238 X992 X978 X1472 X1582 (a, b, c) = (5, 6, 7) | AB = 1

X1582 (POINT CANOPUS) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1582 = POINT CANOPUS."""

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


        def construct_x_01582(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1582 = POINT CANOPUS on reference triangle ABC."""
            X_1582 = eval_trilinear_point(model, A, B, C, 'a**(4) + b**(2)*c**(2)', ID="X_1582", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            central_line(model, X_1, X_19, 1, 19, incident=True)
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_291 = eval_trilinear_point(model, A, B, C, '1/(a**(2) - b*c)', ID="X_291", classes=["center", "incident"])
            central_line(model, X_6, X_291, 6, 291, incident=True)
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            X_560 = eval_trilinear_point(model, A, B, C, 'a**(4)', ID="X_560", classes=["center", "incident"])
            central_line(model, X_75, X_560, 75, 560, incident=True)
            return promote_point_to_top(model, X_1582)


        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_1582 on the given reference triangle."""
            model = create_model('X_1582 = POINT CANOPUS')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01582(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-01582.json"))
            write_center_svg(
                model_acute,
                here / "x-01582.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )