X3515

EULER LINE INTERCEPT OF LINE X154X_185

< 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) { 2, 3 }: Euler Line { 154, 185 }: Central Line L(154, 185) { 36, 1398 }: Central Line L(36, 1398) { 64, 1620 }: Central Line L(64, 1620) { 165, 1902 }: Central Line L(165, 1902) { 187, 2207 }: Central Line L(187, 2207) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_250 = ISOGONAL CONJUGATE OF X(125) (0.5892, 0.5347) X_1301 = COLLINGS TRANSFORM OF X(235) (0.6568, 0.5877) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_154 = -CEVA CONJUGATE OF X(6) (0.4807, -0.3954) X_185 = NAGEL POINT OF THE ORTHIC TRIANGLE (0.6033, 0.1643) X_36 = INVERSE-IN-CIRCUMCIRCLE OF INCENTER (1.3333, 1.6330) X_1398 = -BETH CONJUGATE OF X(34) (0.6338, 0.5315) X_64 = ISOGONAL CONJUGATE OF X(20) (0.5579, 1.5943) X_1620 = TCC-PERSPECTOR OF X(64) (0.7357, 0.4914) X_165 = CENTROID OF THE EXCENTRAL TRIANGLE (0.4762, 0.0583) X_1902 = ZOSMA TRANSFORM OF X(1210) (0.6012, 0.3754) X_187 = INVERSE-IN-CIRCUMCIRCLE OF X(6) (SCHOUTE CENTER) (1.1986, 1.2559) X_2207 = -ISOCONJUGATE OF X(326) (0.6268, 0.5485) X_3515 = EULER LINE INTERCEPT OF LINE X(154)X(185) (0.7099, 0.6513) A B C X250 X1301 X2 X3 X154 X185 X36 X1398 X64 X1620 X165 X1902 X187 X2207 X3515 (a, b, c) = (5, 6, 7) | AB = 1

X3515 (EULER LINE INTERCEPT OF LINE X154X_185) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3515 = EULER LINE INTERCEPT OF LINE X_154X_185."""

        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,
            construct_baseline_triangle,
            create_model,
            crosspoint,
            eval_trilinear_point,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03515(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3515 = EULER LINE INTERCEPT OF LINE X_154X_185 on reference triangle ABC."""
            X_250 = eval_trilinear_point(model, A, B, C, '(sec(A))*(csc(B - C))**(2)', ID="X_250", classes=["center"])
            X_1301 = point_from_barycentrics(model, A, B, C, -0.036707118, 0.057047829, 0.97965929, ID="X_1301", classes=["center"])
            X_3515 = crosspoint(model, A, B, C, X_250, X_1301, ID="X_3515", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_154 = eval_trilinear_point(model, A, B, C, '(cos(A) - cos(B)*cos(C))*a**(2)', ID="X_154", classes=["center", "incident"])
            X_185 = eval_trilinear_point(model, A, B, C, '(cos(A))*(1 - cos(A)*cos(B - C))', ID="X_185", classes=["center", "incident"])
            central_line(model, X_154, X_185, 154, 185, incident=True)
            X_36 = eval_trilinear_point(model, A, B, C, '1 - 2*cos(A)', ID="X_36", classes=["center", "incident"])
            X_1398 = eval_trilinear_point(model, A, B, C, '(sec(A)*(sin(A/2))**(4))', ID="X_1398", classes=["center", "incident"])
            central_line(model, X_36, X_1398, 36, 1398, incident=True)
            return promote_point_to_top(model, X_3515)


        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_3515 on the given reference triangle."""
            model = create_model('X_3515 = EULER LINE INTERCEPT OF LINE X_154X_185')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03515(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-03515.json"))
            write_center_svg(
                model_acute,
                here / "x-03515.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )