X3673

X3501com(INTOUCH TRIANGLE)

X3673 = complement of X25242
< 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 { 4, 7 }: Central Line L(4, 7) { 10, 75 }: Central Line L(10, 75) { 1, 85 }: Central Line L(1, 85) { 2, 277 }: Central Line L(2, 277) { 158, 331 }: Central Line L(158, 331) { 315, 320 }: Central Line L(315, 320) 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_4 = ORTHOCENTER (0.6122, 0.3958) X_7 = GERGONNE POINT (0.5903, 0.2769) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_2 = CENTROID (0.5374, 0.2000) X_277 = ISOGONAL CONJUGATE OF X(218) (0.4242, 0.1335) X_158 = -CROSS CONJUGATE OF X(92) (0.6215, 0.5117) X_331 = ISOTOMIC CONJUGATE OF X(219) (0.6062, 0.4046) X_315 = ISOTOMIC CONJUGATE OF X(66) (0.3323, -0.0666) X_320 = ISOTOMIC CONJUGATE OF X(80) (-2.6735, -3.5993) X_3673 = com(INTOUCH TRIANGLE) (0.5808, 0.2254) A B C X1 X4 X7 X10 X75 X85 X2 X277 X158 X331 X315 X320 X3673 (a, b, c) = (5, 6, 7) | AB = 1

X3673 (X3501com(INTOUCH TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3673 = X_3501com(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,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            gergonne_point_of,
            incenter_of,
            orthocenter_of,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03673(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3673 = X_3501com(INTOUCH TRIANGLE) on reference triangle ABC."""
            X_3673 = eval_barycentric_point(model, A, B, C, '(b*c*(a**(2) + b**(2) + c**(2) - 2*b*c))', ID="X_3673", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            central_line(model, X_4, X_7, 4, 7, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            central_line(model, X_10, X_75, 10, 75, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_85 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c - a)', ID="X_85", classes=["center", "incident"])
            central_line(model, X_1, X_85, 1, 85, incident=True)
            return promote_point_to_top(model, X_3673)


        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_3673 on the given reference triangle."""
            model = create_model('X_3673 = X_3501com(INTOUCH TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03673(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-03673.json"))
            write_center_svg(
                model_acute,
                here / "x-03673.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )