X3726

X2238com(INCENTRAL 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) { 1, 32 }: Central Line L(1, 32) { 37, 38 }: Central Line L(37, 38) { 335, 350 }: Central Line L(335, 350) { 244, 1575 }: Central Line L(244, 1575) { 518, 2238 }: Central Line L(518, 2238) { 902, 1962 }: Central Line L(902, 1962) 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_32 = 3rd POWER POINT (0.6400, 0.3332) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_335 = ISOTOMIC CONJUGATE OF X(239) (1.0387, 0.0318) X_350 = -HIRST INVERSE OF X(75) (-3.5227, -3.1370) X_244 = -LINE CONJUGATE OF X(100) (0.7857, 0.1166) X_1575 = EXSIMILICENTER OF SPIEKER AND (1/2)-MOSES CIRCLES (2.5675, 1.8684) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_2238 = -ISOCONJUGATE OF X(741) (2.2505, 2.0410) X_902 = CROSSPOINT OF X(6) AND X(106) (1.2500, 1.2247) X_1962 = BICENTRIC SUM OF PU(32) (0.5646, 0.2243) X_3726 = com(INCENTRAL TRIANGLE) (-0.1176, -0.7715) A B C X1 X32 X37 X38 X335 X350 X244 X1575 X518 X2238 X902 X1962 X3726 (a, b, c) = (5, 6, 7) | AB = 1

X3726 (X2238com(INCENTRAL TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3726 = X_2238com(INCENTRAL 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,
            incenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03726(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3726 = X_2238com(INCENTRAL TRIANGLE) on reference triangle ABC."""
            X_3726 = eval_barycentric_point(model, A, B, C, '(a*(2*a*b*c - b**(3) - c**(3)))', ID="X_3726", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            central_line(model, X_1, X_32, 1, 32, incident=True)
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", 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_37, X_38, 37, 38, incident=True)
            X_335 = eval_trilinear_point(model, A, B, C, 'b*c/(a**(2) - b*c)', ID="X_335", classes=["center", "incident"])
            X_350 = eval_trilinear_point(model, A, B, C, '(a**(2) - b*c)*b**(2)*c**(2)', ID="X_350", classes=["center", "incident"])
            central_line(model, X_335, X_350, 335, 350, incident=True)
            return promote_point_to_top(model, X_3726)


        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_3726 on the given reference triangle."""
            model = create_model('X_3726 = X_2238com(INCENTRAL TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03726(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-03726.json"))
            write_center_svg(
                model_acute,
                here / "x-03726.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )