X2002

ORTHOCORRESPONDENT OF X33

< 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, 7 }: Centroid–Gergonne Line { 19, 77 }: Central Line L(19, 77) { 85, 653 }: Central Line L(85, 653) { 169, 651 }: Central Line L(169, 651) { 36, 990 }: Central Line L(36, 990) { 1, 1813 }: Central Line L(1, 1813) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_7 = GERGONNE POINT (0.5903, 0.2769) X_19 = CLAWSON POINT (0.6246, 0.4244) X_77 = ISOGONAL CONJUGATE OF X(33) (0.5270, 0.1305) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_653 = TRILINEAR POLE OF LINE X(1)X(4) (0.5097, 0.6030) X_169 = -CEVA CONJUGATE OF X(1) (0.5497, 0.2510) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_36 = INVERSE-IN-CIRCUMCIRCLE OF INCENTER (1.3333, 1.6330) X_990 = INTERSECTION OF LINES X(1)X(7) AND X(3)X(37) (0.6104, 0.3234) X_1 = INCENTER (0.5714, 0.2333) X_1813 = INVERSE MIMOSA TRANSFORM OF X(650) (-0.1088, 0.3999) X_2002 = ORTHOCORRESPONDENT OF X(33) (0.5619, 0.2356) A B C X2 X7 X19 X77 X85 X653 X169 X651 X36 X990 X1 X1813 X2002 (a, b, c) = (5, 6, 7) | AB = 1

X2002 (ORTHOCORRESPONDENT OF X33) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2002 = ORTHOCORRESPONDENT OF X_33."""

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


        def construct_x_02002(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2002 = ORTHOCORRESPONDENT OF X_33 on reference triangle ABC."""
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center"])
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center"])
            X_77 = eval_trilinear_point(model, A, B, C, '1/(1 + sec(A))', ID="X_77", classes=["center"])
            central_line(model, X_2, X_7, 2, 7)
            central_line(model, X_19, X_77, 19, 77)
            X_2002 = intersect_lines(model, X_2, X_7, X_19, X_77, ID="X_2002", classes=["selected", "target"])
            X_85 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c - a)', ID="X_85", classes=["center", "incident"])
            X_653 = eval_trilinear_point(model, A, B, C, '1/(sec(B) - sec(C))', ID="X_653", classes=["center", "incident"])
            central_line(model, X_85, X_653, 85, 653, incident=True)
            return promote_point_to_top(model, X_2002)


        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_2002 on the given reference triangle."""
            model = create_model('X_2002 = ORTHOCORRESPONDENT OF X_33')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02002(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-02002.json"))
            write_center_svg(
                model_acute,
                here / "x-02002.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )