X207

X1-CEVA CONJUGATE OF X34

< 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) { 19, 56 }: Central Line L(19, 56) { 33, 64 }: Central Line L(33, 64) { 40, 108 }: Central Line L(40, 108) { 1, 196 }: Central Line L(1, 196) { 204, 221 }: Central Line L(204, 221) { 78, 653 }: Central Line L(78, 653) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_34 = -BETH CONJUGATE OF X(4) (0.6332, 0.4792) X_19 = CLAWSON POINT (0.6246, 0.4244) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_33 = PERSPECTOR OF THE ORTHIC AND INTANGENTS TRIANGLES (0.6019, 0.3546) X_64 = ISOGONAL CONJUGATE OF X(20) (0.5579, 1.5943) X_40 = BEVAN POINT (0.4286, -0.0292) X_108 = Ψ(CIRCUMCENTER, INCENTER) (0.5320, 0.6114) X_196 = -CEVA CONJUGATE OF X(4) (0.5649, -0.1989) X_204 = -CEVA CONJUGATE OF X(19) (0.6683, 3.3982) X_221 = -CEVA CONJUGATE OF X(56) (0.5474, -0.0688) X_78 = ISOGONAL CONJUGATE OF X(34) (0.3835, 0.0491) X_653 = TRILINEAR POLE OF LINE X(1)X(4) (0.5097, 0.6030) X_207 = -CEVA CONJUGATE OF X(34) (0.5818, 0.9198) A B C X1 X34 X19 X56 X33 X64 X40 X108 X196 X204 X221 X78 X653 X207 (a, b, c) = (5, 6, 7) | AB = 1

X207 (X1-CEVA CONJUGATE OF X34) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_207 = X_1-CEVA CONJUGATE OF X_34."""

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


        def construct_x_00207(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_207 = X_1-CEVA CONJUGATE OF X_34 on reference triangle ABC."""
            X_207 = eval_trilinear_point(model, A, B, C, '((1 - sec(A))*(sec(B) + sec(C) - sec(A) - 1))', ID="X_207", classes=["selected", "target"])
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
            central_line(model, X_19, X_56, 19, 56, incident=True)
            X_33 = eval_trilinear_point(model, A, B, C, '1 + sec(A)', ID="X_33", classes=["center", "incident"])
            X_64 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - cos(B)*cos(C))', ID="X_64", classes=["center", "incident"])
            central_line(model, X_33, X_64, 33, 64, incident=True)
            X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
            X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", classes=["center", "incident"])
            central_line(model, X_40, X_108, 40, 108, incident=True)
            return promote_point_to_top(model, X_207)


        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_207 on the given reference triangle."""
            model = create_model('X_207 = X_1-CEVA CONJUGATE OF X_34')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00207(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-00207.json"))
            write_center_svg(
                model_acute,
                here / "x-00207.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )