X1536

ORTHOJOIN OF X42

X1536 = reflection of X1530 in X1541
< 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) { 1530, 1541 }: Central Line L(1530, 1541) { 2, 3 }: Euler Line { 118, 516 }: Central Line L(118, 516) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1530 = ORTHOJOIN OF X(31) (-0.4898, -1.6288) X_1541 = ORTHOJOIN OF X(55) (0.9271, 1.6491) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_118 = MIDPOINT OF X(4) AND X(101) (0.4133, 0.4603) X_516 = ISOGONAL CONJUGATE OF X(103) (0.7703, 0.7386) X_1536 = ORTHOJOIN OF X(42) (2.3440, 4.9269) A B C X1530 X1541 X2 X3 X118 X516 X1536 (a, b, c) = (5, 6, 7) | AB = 1

X1536 (ORTHOJOIN OF X42) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1536 = ORTHOJOIN OF X_42."""

        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,
            intersect_lines,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01536(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1536 = ORTHOJOIN OF X_42 on reference triangle ABC."""
            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"])
            X_118 = point_from_barycentrics(model, A, B, C, 0.28918651, -0.056547619, 0.76736111, ID="X_118", classes=["center"])
            X_516 = eval_trilinear_point(model, A, B, C, 'b*c*((a - b)*cot(C) + (a - c)*cot(B))', ID="X_516", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            central_line(model, X_118, X_516, 118, 516)
            X_1536 = intersect_lines(model, X_2, X_3, X_118, X_516, ID="X_1536", classes=["selected", "target"])
            return promote_point_to_top(model, X_1536)


        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_1536 on the given reference triangle."""
            model = create_model('X_1536 = ORTHOJOIN OF X_42')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01536(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-01536.json"))
            write_center_svg(
                model_acute,
                here / "x-01536.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )