X1377

INSIMILICENTER(2nd LEMOINE CIRCLE, SPIEKER CIRCLE)

X1377 is the insimilicenter(2nd Lemoine circle, Spieker 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) { 6, 10 }: Central Line L(6, 10) { 8, 1124 }: Central Line L(8, 1124) { 372, 958 }: Central Line L(372, 958) { 2, 1335 }: Central Line L(2, 1335) { 371, 1376 }: Central Line L(371, 1376) { 485, 1329 }: Central Line L(485, 1329) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_8 = NAGEL POINT (0.4694, 0.1333) X_1124 = ISOGONAL CONJUGATE OF X(1123) (0.5846, 0.2489) X_372 = {X(3),X(6)}-HARMONIC CONJUGATE OF X(371) (0.7148, 0.4568) X_958 = INTERSECTION OF LINES X(1)X(6) AND X(2)X(12) (0.5166, 0.1682) X_2 = CENTROID (0.5374, 0.2000) X_1335 = {X(1),X(6)}-HARMONIC CONJUGATE OF X(1124) (0.4024, 0.0326) X_371 = KENMOTU POINT (CONGRUENT SQUARES POINT) (0.5652, 0.2097) X_1376 = EXSIMILICENTER(CIRCUMCIRCLE, SPIEKER CIRCLE) (0.5265, 0.2074) X_485 = VECTEN POINT (0.5773, 0.2578) X_1329 = COMPLEMENTARY CONJUGATE OF X(1) (0.4903, 0.1280) X_1377 = INSIMILICENTER(2nd LEMOINE CIRCLE, SPIEKER CIRCLE) (0.5443, 0.2084) A B C X6 X10 X8 X1124 X372 X958 X2 X1335 X371 X1376 X485 X1329 X1377 (a, b, c) = (5, 6, 7) | AB = 1

X1377 (INSIMILICENTER(2nd LEMOINE CIRCLE, SPIEKER CIRCLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1377 = INSIMILICENTER(2nd LEMOINE CIRCLE, SPIEKER 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,
            nagel_point_of,
            promote_point_to_top,
            spieker_center_of,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01377(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1377 = INSIMILICENTER(2nd LEMOINE CIRCLE, SPIEKER CIRCLE) on reference triangle ABC."""
            X_1377 = eval_trilinear_point(model, A, B, C, 'b*c*(b + c + a*sin(A))', ID="X_1377", classes=["selected", "target"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            central_line(model, X_6, X_10, 6, 10, incident=True)
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            X_1124 = eval_trilinear_point(model, A, B, C, '1 + sin(A)', ID="X_1124", classes=["center", "incident"])
            central_line(model, X_8, X_1124, 8, 1124, incident=True)
            X_372 = eval_trilinear_point(model, A, B, C, 'cos(A +  pi  /4)', ID="X_372", classes=["center", "incident"])
            X_958 = eval_trilinear_point(model, A, B, C, '(b + c - a)*(a**(2) + a*b + a*c + 2*b*c)', ID="X_958", classes=["center", "incident"])
            central_line(model, X_372, X_958, 372, 958, incident=True)
            return promote_point_to_top(model, X_1377)


        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_1377 on the given reference triangle."""
            model = create_model('X_1377 = INSIMILICENTER(2nd LEMOINE CIRCLE, SPIEKER CIRCLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01377(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-01377.json"))
            write_center_svg(
                model_acute,
                here / "x-01377.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )