X201

X10-CEVA CONJUGATE OF X12

< 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) { 9, 34 }: Central Line L(9, 34) { 33, 40 }: Central Line L(33, 40) { 38, 56 }: Central Line L(38, 56) { 37, 65 }: Central Line L(37, 65) { 72, 73 }: Central Line L(72, 73) { 109, 191 }: Central Line L(109, 191) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_9 = MITTENPUNKT (0.5110, 0.1615) X_34 = -BETH CONJUGATE OF X(4) (0.6332, 0.4792) X_33 = PERSPECTOR OF THE ORTHIC AND INTANGENTS TRIANGLES (0.6019, 0.3546) X_40 = BEVAN POINT (0.4286, -0.0292) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_72 = ISOGONAL CONJUGATE OF X(28) (0.4367, 0.0733) X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.5487, 0.1428) X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_191 = -CEVA CONJUGATE OF X(1) (0.4859, 0.1209) X_201 = -CEVA CONJUGATE OF X(12) (0.4897, 0.1062) A B C X10 X12 X9 X34 X33 X40 X38 X56 X37 X65 X72 X73 X109 X191 X201 (a, b, c) = (5, 6, 7) | AB = 1

X201 (X10-CEVA CONJUGATE OF X12) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_201 = X_10-CEVA CONJUGATE OF X_12."""

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


        def construct_x_00201(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_201 = X_10-CEVA CONJUGATE OF X_12 on reference triangle ABC."""
            X_201 = eval_trilinear_point(model, A, B, C, '(cos(A))*(1 + cos(B - C))', ID="X_201", classes=["selected", "target"])
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            X_34 = eval_trilinear_point(model, A, B, C, '1 - sec(A)', ID="X_34", classes=["center", "incident"])
            central_line(model, X_9, X_34, 9, 34, incident=True)
            X_33 = eval_trilinear_point(model, A, B, C, '1 + sec(A)', ID="X_33", classes=["center", "incident"])
            X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
            central_line(model, X_33, X_40, 33, 40, incident=True)
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", 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_38, X_56, 38, 56, incident=True)
            return promote_point_to_top(model, X_201)


        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_201 on the given reference triangle."""
            model = create_model('X_201 = X_10-CEVA CONJUGATE OF X_12')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00201(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-00201.json"))
            write_center_svg(
                model_acute,
                here / "x-00201.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )