X3538

EULER LINE INTERCEPT OF LINE X1038X_1056

X3538 = {X376,X631}-harmonic conjugate of X24
< 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) { 376, 631 }: Euler Line { 2, 3 }: Euler Line { 1038, 1056 }: Central Line L(1038, 1056) { 1040, 1058 }: Central Line L(1040, 1058) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_24 = PERSPECTOR OF ABC AND ORTHIC-OF-ORTHIC TRIANGLE (0.6627, 0.5278) X_376 = CENTROID OF THE ANTIPEDAL TRIANGLE OF X(2) (0.4626, 0.0042) X_631 = 3/5*OG (0.5224, 0.1608) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_1038 = INTERSECTION OF LINES X(1)X(3) AND X(2)X(34) (0.5104, 0.1211) X_1056 = POINT ALCYONE (0.5756, 0.2499) X_1040 = INTERSECTION OF LINES X(1)X(3) AND X(2)X(33) (0.4854, 0.0753) X_1058 = POINT ALKALUROPS (0.5662, 0.2123) X_3538 = EULER LINE INTERCEPT OF LINE X(1038)X(1056) (0.4978, 0.0963) A B C X24 X376 X631 X2 X3 X1038 X1056 X1040 X1058 X3538 (a, b, c) = (5, 6, 7) | AB = 1

X3538 (EULER LINE INTERCEPT OF LINE X1038X_1056) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3538 = EULER LINE INTERCEPT OF LINE X_1038X_1056."""

        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,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03538(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3538 = EULER LINE INTERCEPT OF LINE X_1038X_1056 on reference triangle ABC."""
            X_3538 = eval_trilinear_point(model, A, B, C, '(cos(B)*cos(C) - 2*sec(B)*sec(C))', ID="X_3538", 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_1038 = eval_trilinear_point(model, A, B, C, 'cos(A) + cos(A)*cos(B)*cos(C)', ID="X_1038", classes=["center", "incident"])
            X_1056 = eval_trilinear_point(model, A, B, C, '(2 + cos(B)*cos(C))', ID="X_1056", classes=["center", "incident"])
            central_line(model, X_1038, X_1056, 1038, 1056, incident=True)
            X_1040 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(A)*cos(B)*cos(C)', ID="X_1040", classes=["center", "incident"])
            X_1058 = eval_trilinear_point(model, A, B, C, '(2 - cos(B)*cos(C))', ID="X_1058", classes=["center", "incident"])
            central_line(model, X_1040, X_1058, 1040, 1058, incident=True)
            return promote_point_to_top(model, X_3538)


        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_3538 on the given reference triangle."""
            model = create_model('X_3538 = EULER LINE INTERCEPT OF LINE X_1038X_1056')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03538(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-03538.json"))
            write_center_svg(
                model_acute,
                here / "x-03538.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )