X3567

DON QUIXOTE POINT

The other two Spanish Points are the Sancho Panza Point X3060 and the Miguel de Cervantes Point X143.
< 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, 24 }: Central Line L(6, 24) { 2, 52 }: Central Line L(2, 52) { 4, 51 }: Central Line L(4, 51) { 3, 143 }: Central Line L(3, 143) { 5, 568 }: Central Line L(5, 568) { 186, 578 }: Central Line L(186, 578) 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_24 = PERSPECTOR OF ABC AND ORTHIC-OF-ORTHIC TRIANGLE (0.6627, 0.5278) X_2 = CENTROID (0.5374, 0.2000) X_52 = ORTHOCENTER OF ORTHIC TRIANGLE (0.7155, 0.4580) X_4 = ORTHOCENTER (0.6122, 0.3958) X_51 = CENTROID OF ORTHIC TRIANGLE (0.6093, 0.3186) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_143 = NINE-POINT CENTER OF ORTHIC TRIANGLE (0.6358, 0.3534) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_568 = ORTHOHARMONIC OF X(50) (0.6437, 0.3393) X_186 = INVERSE-IN-CIRCUMCIRCLE OF X(4) (0.7957, 0.8758) X_578 = ORTHOHARMONIC OF X(216) (0.5933, 0.2561) X_3567 = DON QUIXOTE POINT (0.6087, 0.3032) A B C X6 X24 X2 X52 X4 X51 X3 X143 X5 X568 X186 X578 X3567 (a, b, c) = (5, 6, 7) | AB = 1

X3567 (DON QUIXOTE POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3567 = DON QUIXOTE POINT."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            orthocenter_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03567(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3567 = DON QUIXOTE POINT on reference triangle ABC."""
            X_3567 = eval_trilinear_point(model, A, B, C, '(a*(a**(6)*(b**(2) + c**(2)) - a**(4)*(3*b**(4) + b**(2)*c**(2) + 3*c**(4)) + 3*a**(2)*(b**(2) + c**(2))*(b**(2) - c**(2))**(2) - (b**(4) -b**(2)*c**(2) + c**(4))*(b**(2) - c**(2))**(2)))', ID="X_3567", classes=["selected", "target"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_24 = eval_trilinear_point(model, A, B, C, 'sec(A)*cos(2*A)', ID="X_24", classes=["center", "incident"])
            central_line(model, X_6, X_24, 6, 24, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_52 = eval_trilinear_point(model, A, B, C, 'cos(2*A)*cos(B - C)', ID="X_52", classes=["center", "incident"])
            central_line(model, X_2, X_52, 2, 52, incident=True)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_51 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(B - C)', ID="X_51", classes=["center", "incident"])
            central_line(model, X_4, X_51, 4, 51, incident=True)
            return promote_point_to_top(model, X_3567)


        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_3567 on the given reference triangle."""
            model = create_model('X_3567 = DON QUIXOTE POINT')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03567(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-03567.json"))
            write_center_svg(
                model_acute,
                here / "x-03567.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )