X983

ISOGONAL CONJUGATE OF X982

< 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) { 7, 171 }: Central Line L(7, 171) { 1, 182 }: Central Line L(1, 182) { 8, 238 }: Central Line L(8, 238) { 55, 256 }: Central Line L(55, 256) { 21, 976 }: Central Line L(21, 976) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_982 = INTERSECTION OF LINES X(1)X(3) AND X(2)X(38) (0.5508, 0.1955) X_7 = GERGONNE POINT (0.5903, 0.2769) X_171 = {X(2), X(31)}-HARMONIC CONJUGATE OF X(238) (0.5819, 0.2525) X_1 = INCENTER (0.5714, 0.2333) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_8 = NAGEL POINT (0.4694, 0.1333) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_256 = 1st SHARYGIN POINT (0.5601, 0.2146) X_21 = SCHIFFLER POINT (0.5287, 0.1771) X_976 = INTERSECTION OF LINES X(1)X(2) AND X(3)X(38) (0.5520, 0.2143) X_983 = ISOGONAL CONJUGATE OF X(982) (0.5890, 0.2731) A B C X982 X7 X171 X1 X182 X8 X238 X55 X256 X21 X976 X983 (a, b, c) = (5, 6, 7) | AB = 1

X983 (ISOGONAL CONJUGATE OF X982) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_983 = ISOGONAL CONJUGATE OF X_982."""

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


        def construct_x_00983(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_983 = ISOGONAL CONJUGATE OF X_982 on reference triangle ABC."""
            X_982 = eval_trilinear_point(model, A, B, C, '(b**(2) - b*c + c**(2))', ID="X_982", classes=["center"])
            X_983 = isogonal_conjugate(model, A, B, C, X_982, ID="X_983", classes=["selected", "target"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            X_171 = eval_trilinear_point(model, A, B, C, 'a**(2) + b*c', ID="X_171", classes=["center", "incident"])
            central_line(model, X_7, X_171, 7, 171, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_182 = eval_trilinear_point(model, A, B, C, 'cos(A-  omega  )', ID="X_182", classes=["center", "incident"])
            central_line(model, X_1, X_182, 1, 182, incident=True)
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            X_238 = eval_trilinear_point(model, A, B, C, 'a**(2) - b*c', ID="X_238", classes=["center", "incident"])
            central_line(model, X_8, X_238, 8, 238, incident=True)
            return promote_point_to_top(model, X_983)


        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_983 on the given reference triangle."""
            model = create_model('X_983 = ISOGONAL CONJUGATE OF X_982')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00983(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-00983.json"))
            write_center_svg(
                model_acute,
                here / "x-00983.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )