X27

CEVAPOINT OF ORTHOCENTER AND CLAWSON CENTER

X27 is the cevapoint of orthocenter and Clawson center.
< 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) { 2, 3 }: Euler Line { 19, 63 }: Central Line L(19, 63) { 7, 81 }: Central Line L(7, 81) { 103, 107 }: Central Line L(103, 107) { 58, 270 }: Central Line L(58, 270) { 57, 273 }: Central Line L(57, 273) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_4 = ORTHOCENTER (0.6122, 0.3958) X_19 = CLAWSON POINT (0.6246, 0.4244) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_63 = ISOGONAL CONJUGATE OF X(19) (0.4566, 0.0823) X_7 = GERGONNE POINT (0.5903, 0.2769) X_81 = CEVAPOINT OF INCENTER AND SYMMEDIAN POINT (0.5849, 0.2510) X_103 = ANTIPODE OF X(101) (0.7857, -0.3208) X_107 = Ψ(SYMMEDIAN POINT, ORTHOCENTER) (0.5733, 0.6071) X_58 = ISOGONAL CONJUGATE OF X(10) (0.6107, 0.2850) X_270 = ISOGONAL CONJUGATE OF X(201) (0.6168, 0.3881) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_273 = ISOGONAL CONJUGATE OF X(212) (0.6191, 0.4329) X_27 = CEVAPOINT OF ORTHOCENTER AND CLAWSON CENTER (0.6182, 0.4112) A B C X4 X19 X2 X3 X63 X7 X81 X103 X107 X58 X270 X57 X273 X27 (a, b, c) = (5, 6, 7) | AB = 1

X27 (CEVAPOINT OF ORTHOCENTER AND CLAWSON CENTER) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_27 = CEVAPOINT OF ORTHOCENTER AND CLAWSON CENTER."""

        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,
            centroid_of,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            gergonne_point_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00027(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_27 = CEVAPOINT OF ORTHOCENTER AND CLAWSON CENTER on reference triangle ABC."""
            X_27 = eval_trilinear_point(model, A, B, C, '(sec(A))/(b + c)', ID="X_27", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            X_63 = eval_trilinear_point(model, A, B, C, 'cot(A)', ID="X_63", classes=["center", "incident"])
            central_line(model, X_19, X_63, 19, 63, incident=True)
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
            central_line(model, X_7, X_81, 7, 81, incident=True)
            return promote_point_to_top(model, X_27)


        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_27 on the given reference triangle."""
            model = create_model('X_27 = CEVAPOINT OF ORTHOCENTER AND CLAWSON CENTER')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00027(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-00027.json"))
            write_center_svg(
                model_acute,
                here / "x-00027.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )