X3193

X29-CEVA CONJUGATE OF X21

< 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) { 28, 110 }: Central Line L(28, 110) { 4, 155 }: Central Line L(4, 155) { 46, 453 }: Central Line L(46, 453) { 377, 394 }: Central Line L(377, 394) { 225, 651 }: Central Line L(225, 651) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_29 = CEVAPOINT OF INCENTER AND ORTHOCENTER (0.5903, 0.3384) X_21 = SCHIFFLER POINT (0.5287, 0.1771) X_1 = INCENTER (0.5714, 0.2333) X_28 = CEVAPOINT OF X(19) AND X(25) (0.6285, 0.4382) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_4 = ORTHOCENTER (0.6122, 0.3958) X_155 = EIGENCENTER OF ORTHIC TRIANGLE (1.1658, 0.5033) X_46 = -CEVA CONJUGATE OF X(1) (0.6917, 0.4543) X_453 = POINT ALSHAIN (0.6610, 0.5233) X_377 = EULER LINE INTERCEPT OF LINE X(7)X(8) (0.5473, 0.2258) X_394 = -CEVA CONJUGATE OF X(3) (0.3778, 0.0284) X_225 = -CEVA CONJUGATE OF X(65) (0.6246, 0.4451) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_3193 = -CEVA CONJUGATE OF X(21) (0.7094, 0.4146) A B C X29 X21 X1 X28 X110 X4 X155 X46 X453 X377 X394 X225 X651 X3193 (a, b, c) = (5, 6, 7) | AB = 1

X3193 (X29-CEVA CONJUGATE OF X21) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3193 = X_29-CEVA CONJUGATE OF X_21."""

        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,
            ceva_conjugate,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            incenter_of,
            orthocenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03193(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3193 = X_29-CEVA CONJUGATE OF X_21 on reference triangle ABC."""
            X_29 = eval_trilinear_point(model, A, B, C, '(sec(A))/(cos(B) + cos(C))', ID="X_29", classes=["center"])
            X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center"])
            X_3193 = ceva_conjugate(model, A, B, C, X_29, X_21, ID="X_3193", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            central_line(model, X_1, X_21, 1, 21, incident=True)
            X_28 = eval_trilinear_point(model, A, B, C, '(tan(A))/(b + c)', ID="X_28", 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_28, X_110, 28, 110, incident=True)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_155 = eval_trilinear_point(model, A, B, C, '(cos(A))*((cos(B))**(2) + (cos(C))**(2) - (cos(A))**(2))', ID="X_155", classes=["center", "incident"])
            central_line(model, X_4, X_155, 4, 155, incident=True)
            return promote_point_to_top(model, X_3193)


        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_3193 on the given reference triangle."""
            model = create_model('X_3193 = X_29-CEVA CONJUGATE OF X_21')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03193(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-03193.json"))
            write_center_svg(
                model_acute,
                here / "x-03193.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )