X770

POINT ACAMAR

X770 = crosssum of X1 and X770
< 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) { 44, 513 }: Central Line L(44, 513) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_771 = ISOGONAL CONJUGATE OF X(770) (0.0821, 0.4083) X_44 = -LINE CONJUGATE OF X(1) (2.1429, 2.0996) X_513 = ISOGONAL CONJUGATE OF X(100) (1.0529, -0.0806) X_770 = POINT ACAMAR (-24.0549, 16.3598) A B C X771 X44 X513 X770 (a, b, c) = (5, 6, 7) | AB = 1

X770 (POINT ACAMAR) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_770 = POINT ACAMAR."""

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


        def construct_x_00770(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_770 = POINT ACAMAR on reference triangle ABC."""
            X_770 = eval_trilinear_point(model, A, B, C, '((cos(B))**(3) - (cos(C))**(3))', ID="X_770", classes=["selected", "target"])
            X_44 = eval_trilinear_point(model, A, B, C, 'b + c - 2*a', ID="X_44", classes=["center", "incident"])
            X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center", "incident"])
            central_line(model, X_44, X_513, 44, 513, incident=True)
            return promote_point_to_top(model, X_770)


        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_770 on the given reference triangle."""
            model = create_model('X_770 = POINT ACAMAR')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00770(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-00770.json"))
            write_center_svg(
                model_acute,
                here / "x-00770.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )