X1704

INSIMILICENTER(BEVAN CIRCLE, BROCARD CIRCLE)

X1704 is the insimilicenter(Bevan circle, Brocard circle).
< 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) { 40, 182 }: Central Line L(40, 182) { 1, 1340 }: Central Line L(1, 1340) { 165, 1341 }: Central Line L(165, 1341) { 9, 1679 }: Central Line L(9, 1679) { 57, 1674 }: Central Line L(57, 1674) { 43, 1693 }: Central Line L(43, 1693) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_40 = BEVAN POINT (0.4286, -0.0292) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_1 = INCENTER (0.5714, 0.2333) X_1340 = INSIMILICENTER(CIRCUMCIRCLE, BROCARD CIRCLE) (0.5420, 0.1715) X_165 = CENTROID OF THE EXCENTRAL TRIANGLE (0.4762, 0.0583) X_1341 = EXSIMILICENTER(CIRCUMCIRCLE, BROCARD CIRCLE) (0.5617, 0.2039) X_9 = MITTENPUNKT (0.5110, 0.1615) X_1679 = EXSIMILICENTER(BROCARD CIRCLE, SPIEKER CIRCLE) (0.6921, 0.1911) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_1674 = INSIMILICENTER(INCIRCLE, BROCARD CIRCLE) (0.5563, 0.1989) X_43 = -CEVA CONJUGATE OF X(1) (0.6358, 0.2963) X_1693 = INSIMILICENTER(BROCARD CIRCLE,APOLLONIUS CIRCLE) (0.5357, 0.1610) X_1704 = INSIMILICENTER(BEVAN CIRCLE, BROCARD CIRCLE) (0.5395, 0.1662) A B C X40 X182 X1 X1340 X165 X1341 X9 X1679 X57 X1674 X43 X1693 X1704 (a, b, c) = (5, 6, 7) | AB = 1

X1704 (INSIMILICENTER(BEVAN CIRCLE, BROCARD CIRCLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1704 = INSIMILICENTER(BEVAN CIRCLE, BROCARD CIRCLE)."""

        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_trilinear_point,
            incenter_of,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01704(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1704 = INSIMILICENTER(BEVAN CIRCLE, BROCARD CIRCLE) on reference triangle ABC."""
            X_1704 = eval_trilinear_point(model, A, B, C, '(2*cos(A -  omega  ) + e*(1 + cos(A) - cos(B) - cos(C)))', ID="X_1704", classes=["selected", "target"])
            X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
            X_182 = eval_trilinear_point(model, A, B, C, 'cos(A-  omega  )', ID="X_182", classes=["center", "incident"])
            central_line(model, X_40, X_182, 40, 182, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_1340 = point_from_barycentrics(model, A, B, C, 0.34709524, 0.36700624, 0.28589852, ID="X_1340", classes=["center", "incident"])
            central_line(model, X_1, X_1340, 1, 1340, incident=True)
            X_165 = eval_trilinear_point(model, A, B, C, 'tan(B/2) + tan(C/2) - tan(A/2)', ID="X_165", classes=["center", "incident"])
            X_1341 = point_from_barycentrics(model, A, B, C, 0.30653192, 0.35355532, 0.33991277, ID="X_1341", classes=["center", "incident"])
            central_line(model, X_165, X_1341, 165, 1341, incident=True)
            return promote_point_to_top(model, X_1704)


        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_1704 on the given reference triangle."""
            model = create_model('X_1704 = INSIMILICENTER(BEVAN CIRCLE, BROCARD CIRCLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01704(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-01704.json"))
            write_center_svg(
                model_acute,
                here / "x-01704.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )