X3035

COMPLEMENT OF X11

X3035 is the complement of X11.
< 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, 11 }: Central Line L(2, 11) { 3, 119 }: Central Line L(3, 119) { 10, 140 }: Central Line L(10, 140) { 12, 404 }: Central Line L(12, 404) { 36, 529 }: Central Line L(36, 529) 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_11 = FEUERBACH POINT (0.7347, 0.0667) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_119 = FEUERBACH ANTIPODE (0.3776, 0.4312) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_140 = MIDPOINT OF X(3) AND X(5) (0.5281, 0.1755) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_404 = {X(2),X(3)}-HARMONIC CONJUGATE OF X(21) (0.5538, 0.2429) X_36 = INVERSE-IN-CIRCUMCIRCLE OF INCENTER (1.3333, 1.6330) X_529 = DIRECTION OF VECTOR AX + BX + CX, where X = X(12) (0.8589, 0.6909) X_3035 = COMPLEMENT OF X(11) (0.4388, 0.2666) A B C Ma Mb Mc X2 X11 X3 X119 X10 X140 X12 X404 X36 X529 X3035 (a, b, c) = (5, 6, 7) | AB = 1

X3035 (COMPLEMENT OF X11) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3035 = COMPLEMENT OF X_11."""

        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,
            circumcenter_of,
            complement,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            feuerbach_point_of,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03035(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3035 = COMPLEMENT OF X_11 on reference triangle ABC."""
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center"])
            X_3035 = complement(model, A, B, C, X_11, ID="X_3035", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            central_line(model, X_2, X_11, 2, 11, incident=True)
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_119 = eval_trilinear_point(model, A, B, C, '(csc(A))*(-1 + cos(B) + cos(C))*(sin(2*B) + sin(2*C) + 2*(-1 + cos(A))*(sin(B) + sin(C)))', ID="X_119", classes=["center", "incident"])
            central_line(model, X_3, X_119, 3, 119, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_140 = eval_trilinear_point(model, A, B, C, '2*cos(A) + cos(B - C)', ID="X_140", classes=["center", "incident"])
            central_line(model, X_10, X_140, 10, 140, incident=True)
            return promote_point_to_top(model, X_3035)


        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_3035 on the given reference triangle."""
            model = create_model('X_3035 = COMPLEMENT OF X_11')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03035(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-03035.json"))
            write_center_svg(
                model_acute,
                here / "x-03035.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )