X3824

X3671com(3rd EULER 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) { 5, 142 }: Central Line L(5, 142) { 30, 1125 }: Central Line L(30, 1125) { 442, 942 }: Central Line L(442, 942) { 79, 3683 }: Central Line L(79, 3683) { 527, 3634 }: Central Line L(527, 3634) { 1698, 3715 }: Central Line L(1698, 3715) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_142 = COMPLEMENT OF X(9) (0.5506, 0.2192) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_1125 = COMPLEMENT OF X(10) (0.5459, 0.2083) X_442 = COMPLEMENT OF SCHIFFLER POINT (0.5418, 0.2114) X_942 = INCIRCLE-INVERSE OF X(36) (0.5878, 0.2633) X_79 = ISOGONAL CONJUGATE OF X(35) (0.5976, 0.3019) X_3683 = com(EXTOUCH TRIANGLE) (0.5204, 0.1690) X_527 = DIRECTION OF VECTOR AX + BX + CX, where X = X(7) (0.8698, 0.6836) X_3634 = H-1(X(10); M, 2) (0.5332, 0.1958) X_1698 = INSIMILICENTER(BEVAN CIRCLE, NINE-POINTCIRCLE) (0.5306, 0.1933) X_3715 = com(EXTOUCH TRIANGLE) (0.5036, 0.1555) X_3824 = com(3rd EULER TRIANGLE) (0.5511, 0.2219) A B C X5 X142 X30 X1125 X442 X942 X79 X3683 X527 X3634 X1698 X3715 X3824 (a, b, c) = (5, 6, 7) | AB = 1

X3824 (X3671com(3rd EULER TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3824 = X_3671com(3rd EULER 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,
            nine_point_center_of,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03824(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3824 = X_3671com(3rd EULER TRIANGLE) on reference triangle ABC."""
            X_3824 = eval_barycentric_point(model, A, B, C, '((a + 2*b + 2*c)*(b**(3) + c**(3) - a**(2)*b - a**(2)*c - 2*a*b*c - b**(2)*c - b*c**(2)))', ID="X_3824", classes=["selected", "target"])
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
            X_142 = eval_trilinear_point(model, A, B, C, 'b + c - ((b - c)**(2))/a', ID="X_142", classes=["center", "incident"])
            central_line(model, X_5, X_142, 5, 142, incident=True)
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_1125 = eval_trilinear_point(model, A, B, C, '(2*a+b+c)/a', ID="X_1125", classes=["center", "incident"])
            central_line(model, X_30, X_1125, 30, 1125, incident=True)
            X_442 = point_from_barycentrics(model, A, B, C, 0.3215734, 0.32603406, 0.35239254, ID="X_442", classes=["center", "incident"])
            X_942 = eval_trilinear_point(model, A, B, C, '2*a*b*c + (b + c)*(a - b + c)*(a + b -c)', ID="X_942", classes=["center", "incident"])
            central_line(model, X_442, X_942, 442, 942, incident=True)
            return promote_point_to_top(model, X_3824)


        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_3824 on the given reference triangle."""
            model = create_model('X_3824 = X_3671com(3rd EULER TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03824(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-03824.json"))
            write_center_svg(
                model_acute,
                here / "x-03824.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )