X3674

X2329com(INTOUCH TRIANGLE)

< 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) incircle: Incircle of △ABC { 1, 7 }: Soddy Line { 76, 85 }: Central Line L(76, 85) { 57, 348 }: Central Line L(57, 348) { 65, 760 }: Central Line L(65, 760) { 552, 553 }: Central Line L(552, 553) { 274, 1432 }: Central Line L(274, 1432) 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_7 = GERGONNE POINT (0.5903, 0.2769) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_348 = ISOTOMIC CONJUGATE OF X(281) (0.4854, 0.1069) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_760 = EVEN (1, 4) INFINITY POINT (0.2055, -0.2840) X_552 = POINT MAIA I (0.6112, 0.3127) X_553 = POINT MAIA II (0.5963, 0.2857) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_1432 = -BETH CONJUGATE OF X(257) (0.6068, 0.2916) X_3674 = com(INTOUCH TRIANGLE) (0.5859, 0.2668) A B C X1 X7 X76 X85 X57 X348 X65 X760 X552 X553 X274 X1432 X3674 (a, b, c) = (5, 6, 7) | AB = 1

X3674 (X2329com(INTOUCH TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3674 = X_2329com(INTOUCH TRIANGLE)."""

        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_barycentric_point,
            eval_trilinear_point,
            gergonne_point_of,
            incenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03674(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3674 = X_2329com(INTOUCH TRIANGLE) on reference triangle ABC."""
            X_3674 = eval_barycentric_point(model, A, B, C, '((b**(2) + c**(2) + a*b + a*c)/(b + c - a))', ID="X_3674", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            central_line(model, X_1, X_7, 1, 7, incident=True)
            X_76 = eval_trilinear_point(model, A, B, C, '1/a**(3)', ID="X_76", classes=["center", "incident"])
            X_85 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c - a)', ID="X_85", classes=["center", "incident"])
            central_line(model, X_76, X_85, 76, 85, incident=True)
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
            X_348 = eval_trilinear_point(model, A, B, C, 'cot(A)*(sec(A/2))**(2)', ID="X_348", classes=["center", "incident"])
            central_line(model, X_57, X_348, 57, 348, incident=True)
            return promote_point_to_top(model, X_3674)


        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_3674 on the given reference triangle."""
            model = create_model('X_3674 = X_2329com(INTOUCH TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03674(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-03674.json"))
            write_center_svg(
                model_acute,
                here / "x-03674.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )