X3941

X3694com(TANGENTIAL 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) circumcircle: Circumcircle of △ABC { 31, 48 }: Central Line L(31, 48) { 55, 1100 }: Central Line L(55, 1100) { 579, 674 }: Central Line L(579, 674) { 604, 692 }: Central Line L(604, 692) { 56, 1279 }: Central Line L(56, 1279) { 3, 1386 }: Central Line L(3, 1386) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_48 = CROSSPOINT OF X(1) AND X(63) (0.5412, 0.1246) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_1100 = COMPLEMENT OF X(319) (0.5787, 0.2419) X_579 = HARMONIC OF X(284) (0.7212, 0.4674) X_674 = CROSSDIFFERENCE OF X(6) AND X(514) (0.2078, -0.2856) X_604 = -CEVA CONJUGATE OF X(31) (0.6442, 0.3744) X_692 = -CEVA CONJUGATE OF X(101) (0.2833, 0.5715) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_1279 = MIDPOINT OF X(1) AND X(238) (1.0952, 0.8554) X_1386 = MIDPOINT OF INCENTER AND SYMMEDIAN POINT (0.5857, 0.2503) X_3941 = com(TANGENTIAL TRIANGLE) (0.6543, 0.3689) A B C X3 X31 X48 X55 X1100 X579 X674 X604 X692 X56 X1279 X1386 X3941 (a, b, c) = (5, 6, 7) | AB = 1

X3941 (X3694com(TANGENTIAL TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3941 = X_3694com(TANGENTIAL 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,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03941(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3941 = X_3694com(TANGENTIAL TRIANGLE) on reference triangle ABC."""
            X_3941 = eval_barycentric_point(model, A, B, C, '(a**(3)*(b**(2) + c**(2) - b*c - c*a - a*b))', ID="X_3941", classes=["selected", "target"])
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_48 = eval_trilinear_point(model, A, B, C, 'tan(B) + tan(C)', ID="X_48", classes=["center", "incident"])
            central_line(model, X_31, X_48, 31, 48, incident=True)
            X_55 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)', ID="X_55", classes=["center", "incident"])
            X_1100 = eval_trilinear_point(model, A, B, C, '2*a + b + c', ID="X_1100", classes=["center", "incident"])
            central_line(model, X_55, X_1100, 55, 1100, incident=True)
            X_579 = eval_trilinear_point(model, A, B, C, '(a*(a**(2)*b + a**(2)*c + a*b*c - b**(3) - c**(3)))', ID="X_579", classes=["center", "incident"])
            X_674 = eval_trilinear_point(model, A, B, C, '(a*(b**(3) + c**(3) - a*(b**(2) + c**(2))))', ID="X_674", classes=["center", "incident"])
            central_line(model, X_579, X_674, 579, 674, incident=True)
            return promote_point_to_top(model, X_3941)


        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_3941 on the given reference triangle."""
            model = create_model('X_3941 = X_3694com(TANGENTIAL TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03941(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-03941.json"))
            write_center_svg(
                model_acute,
                here / "x-03941.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )