X1357

BRISSE TRANSFORM OF X100

< A B C >: Reference Triangle △ABC < T_a T_b T_c >: Intouch (Contact) Triangle △T_a T_b T_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) incircle: Incircle of △ABC [ T_a X_1357 ]: Line [ T_a X_1357 ] [ T_b X_1357 ]: Line [ T_b X_1357 ] [ T_c X_1357 ]: Line [ T_c X_1357 ] { 43, 57 }: Central Line L(43, 57) { 12, 121 }: Central Line L(12, 121) { 56, 106 }: Central Line L(56, 106) { 55, 1293 }: Central Line L(55, 1293) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) T_a = Incircle Touchpoint T_a on BC (0.7673, 0.3599) T_b = Incircle Touchpoint T_b on CA (0.4082, 0.3999) T_c = Incircle Touchpoint T_c on AB (0.5714, 0.0000) X_1 = INCENTER (0.5714, 0.2333) X_43 = -CEVA CONJUGATE OF X(1) (0.6358, 0.2963) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_121 = -OF-MEDIAL-TRIANGLE (0.3061, 0.2999) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_106 = Λ(INCENTER, CENTROID) (1.0000, 0.0000) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_1293 = COLLINGS TRANSFORM OF X(121) (0.0000, 0.2041) X_1357 = BRISSE TRANSFORM OF X(100) (0.8000, 0.1866) A B C Ta Tb Tc X1 X43 X57 X12 X121 X56 X106 X55 X1293 X1357 (a, b, c) = (5, 6, 7) | AB = 1

X1357 (BRISSE TRANSFORM OF X100) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1357 = BRISSE TRANSFORM OF X_100."""

        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_01357(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1357 = BRISSE TRANSFORM OF X_100 on reference triangle ABC."""
            X_1357 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)*(b - c)**(2)*(a**(2) - (b - c)**(2))**(2)', ID="X_1357", classes=["selected", "target"])
            X_43 = eval_trilinear_point(model, A, B, C, 'a*b + a*c - b*c', ID="X_43", classes=["center", "incident"])
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
            central_line(model, X_43, X_57, 43, 57, incident=True)
            X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center", "incident"])
            X_121 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - 2*a)*(b**(3) + c**(3) + a*(b**(2) + c**(2)) - 2*b*c*(b + c)))', ID="X_121", classes=["center", "incident"])
            central_line(model, X_12, X_121, 12, 121, incident=True)
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
            X_106 = eval_trilinear_point(model, A, B, C, 'a/(2*a - b - c)', ID="X_106", classes=["center", "incident"])
            central_line(model, X_56, X_106, 56, 106, incident=True)
            return promote_point_to_top(model, X_1357)


        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_1357 on the given reference triangle."""
            model = create_model('X_1357 = BRISSE TRANSFORM OF X_100')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01357(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-01357.json"))
            write_center_svg(
                model_acute,
                here / "x-01357.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )