X3823

X3717com(4th EULER TRIANGLE)

< A B C >: Reference Triangle △ABC < M_a M_b M_c >: Medial Triangle △M_a M_b M_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 2, 1279 }: Central Line L(2, 1279) { 10, 141 }: Central Line L(10, 141) { 44, 966 }: Central Line L(44, 966) { 238, 1698 }: Central Line L(238, 1698) { 536, 1738 }: Central Line L(536, 1738) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) M_a = Midpoint M_a of BC (0.8061, 0.2999) M_b = Midpoint M_b of CA (0.3061, 0.2999) M_c = Midpoint M_c of AB (0.5000, 0.0000) X_2 = CENTROID (0.5374, 0.2000) X_1279 = MIDPOINT OF X(1) AND X(238) (1.0952, 0.8554) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_44 = -LINE CONJUGATE OF X(1) (2.1429, 2.0996) X_966 = INTERSECTION OF LINES X(2)X(6) AND X(4)X(9) (0.5191, 0.1803) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_1698 = INSIMILICENTER(BEVAN CIRCLE, NINE-POINTCIRCLE) (0.5306, 0.1933) X_536 = DIRECTION OF VECTOR AX + BX + CX, where X = X(37) (0.0840, -0.1727) X_1738 = MIMOSA TRANSFORM OF X(105) (1.2925, 0.7221) X_3823 = com(4th EULER TRIANGLE) (0.2585, -0.1278) A B C Ma Mb Mc X2 X1279 X10 X141 X44 X966 X238 X1698 X536 X1738 X3823 (a, b, c) = (5, 6, 7) | AB = 1

X3823 (X3717com(4th EULER TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3823 = X_3717com(4th 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,
            centroid_of,
            complement,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03823(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3823 = X_3717com(4th EULER TRIANGLE) on reference triangle ABC."""
            X_1279 = eval_trilinear_point(model, A, B, C, '((b - c)**(2) - a*(b + c - 2*a))', ID="X_1279", classes=["center"])
            X_3823 = complement(model, A, B, C, X_1279, ID="X_3823", classes=["selected", "target"])
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
            central_line(model, X_10, X_141, 10, 141, incident=True)
            X_44 = eval_trilinear_point(model, A, B, C, 'b + c - 2*a', ID="X_44", classes=["center", "incident"])
            X_966 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2) - 2*a*(b + c) - (b + c)**(2))', ID="X_966", classes=["center", "incident"])
            central_line(model, X_44, X_966, 44, 966, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            central_line(model, X_2, X_1279, 2, 1279, incident=True)
            return promote_point_to_top(model, X_3823)


        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_3823 on the given reference triangle."""
            model = create_model('X_3823 = X_3717com(4th EULER TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03823(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-03823.json"))
            write_center_svg(
                model_acute,
                here / "x-03823.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )