X2320

X2-ISOCONJUGATE OF X1405

< 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, 80 }: Central Line L(2, 80) { 1, 89 }: Central Line L(1, 89) { 7, 1319 }: Central Line L(7, 1319) { 55, 1320 }: Central Line L(55, 1320) { 4, 1385 }: Central Line L(4, 1385) { 3, 1389 }: Central Line L(3, 1389) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2099 = REFLECTION OF X(55) IN X(1) (0.5938, 0.2745) X_2 = CENTROID (0.5374, 0.2000) X_80 = REFLECTION OF INCENTER IN FEUERBACH POINT (0.8980, -0.1000) X_1 = INCENTER (0.5714, 0.2333) X_89 = ISOGONAL CONJUGATE OF X(45) (0.5963, 0.2697) X_7 = GERGONNE POINT (0.5903, 0.2769) X_1319 = BEVAN-SCHRÖDER POINT (0.9524, 0.9331) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_1320 = ISOGONAL CONJUGATE OF X(1319) (1.0000, 0.0000) X_4 = ORTHOCENTER (0.6122, 0.3958) X_1385 = MIDPOINT OF INCENTER AND CIRCUMCENTER (0.5357, 0.1677) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_1389 = ISOGONAL CONJUGATE OF X(1385) (0.5985, 0.3054) X_2320 = -ISOCONJUGATE OF X(1405) (0.5446, 0.1940) A B C X2099 X2 X80 X1 X89 X7 X1319 X55 X1320 X4 X1385 X3 X1389 X2320 (a, b, c) = (5, 6, 7) | AB = 1

X2320 (X2-ISOCONJUGATE OF X1405) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2320 = X_2-ISOCONJUGATE OF X_1405."""

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


        def construct_x_02320(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2320 = X_2-ISOCONJUGATE OF X_1405 on reference triangle ABC."""
            X_2099 = eval_trilinear_point(model, A, B, C, '((a + b - c)*(a - b + c)*(a - 2*b - 2*c))', ID="X_2099", classes=["center"])
            X_2320 = isogonal_conjugate(model, A, B, C, X_2099, ID="X_2320", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_80 = eval_trilinear_point(model, A, B, C, '1/(1 - 2*cos(A))', ID="X_80", classes=["center", "incident"])
            central_line(model, X_2, X_80, 2, 80, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_89 = eval_trilinear_point(model, A, B, C, '1/(2*b + 2*c - a)', ID="X_89", classes=["center", "incident"])
            central_line(model, X_1, X_89, 1, 89, incident=True)
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            X_1319 = eval_trilinear_point(model, A, B, C, '(b + c - 2*a)/ (b + c - a)', ID="X_1319", classes=["center", "incident"])
            central_line(model, X_7, X_1319, 7, 1319, incident=True)
            return promote_point_to_top(model, X_2320)


        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_2320 on the given reference triangle."""
            model = create_model('X_2320 = X_2-ISOCONJUGATE OF X_1405')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02320(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-02320.json"))
            write_center_svg(
                model_acute,
                here / "x-02320.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )