X3677

X2999com(INTOUCH TRIANGLE)

< 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) incircle: Incircle of △ABC { 1, 3 }: OI Line (Incenter–Circumcenter Line) { 9, 38 }: Central Line L(9, 38) { 244, 612 }: Central Line L(244, 612) { 613, 2003 }: Central Line L(613, 2003) { 42, 3243 }: Central Line L(42, 3243) { 200, 3242 }: Central Line L(200, 3242) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_9 = MITTENPUNKT (0.5110, 0.1615) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_244 = -LINE CONJUGATE OF X(100) (0.7857, 0.1166) X_612 = INTERSECTION OF LINES X(1)X(2) AND X(9)X(31) (0.5582, 0.2203) X_613 = INTERSECTION OF LINES X(1)X(6) AND X(56)X(511) (0.5474, 0.2047) X_2003 = ORTHOCORRESPONDENT OF X(36) (0.5923, 0.2428) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_3243 = REFLECTION OF X(9) IN X(1) (0.6319, 0.3051) X_200 = -CEVA CONJUGATE OF X(9) (0.4392, 0.1037) X_3242 = REFLECTION OF X(6) IN X(1) (0.5429, 0.1994) X_3677 = com(INTOUCH TRIANGLE) (0.5631, 0.2181) A B C X1 X3 X9 X38 X244 X612 X613 X2003 X42 X3243 X200 X3242 X3677 (a, b, c) = (5, 6, 7) | AB = 1

X3677 (X2999com(INTOUCH TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3677 = X_2999com(INTOUCH TRIANGLE)."""

        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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            incenter_of,
            mittenpunkt_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03677(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3677 = X_2999com(INTOUCH TRIANGLE) on reference triangle ABC."""
            X_3677 = eval_barycentric_point(model, A, B, C, '(a*(a**(2) + 3*b**(2) + 3*c**(2) - 2*b*c))', ID="X_3677", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            central_line(model, X_1, X_3, 1, 3, incident=True)
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", classes=["center", "incident"])
            central_line(model, X_9, X_38, 9, 38, incident=True)
            X_244 = eval_trilinear_point(model, A, B, C, '(b - c)**(2)', ID="X_244", classes=["center", "incident"])
            X_612 = eval_trilinear_point(model, A, B, C, 'a**(2) + b**(2) + c**(2) + 2*b*c', ID="X_612", classes=["center", "incident"])
            central_line(model, X_244, X_612, 244, 612, incident=True)
            return promote_point_to_top(model, X_3677)


        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_3677 on the given reference triangle."""
            model = create_model('X_3677 = X_2999com(INTOUCH TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03677(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-03677.json"))
            write_center_svg(
                model_acute,
                here / "x-03677.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )