X3993

X984com[INVERSE(n(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) { 10, 37 }: Central Line L(10, 37) { 1, 87 }: Central Line L(1, 87) { 536, 551 }: Central Line L(536, 551) { 75, 1125 }: Central Line L(75, 1125) { 519, 751 }: Central Line L(519, 751) { 226, 1365 }: Central Line L(226, 1365) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_1 = INCENTER (0.5714, 0.2333) X_87 = -CROSS CONJUGATE OF X(1) (0.4794, 0.1691) X_536 = DIRECTION OF VECTOR AX + BX + CX, where X = X(37) (0.0840, -0.1727) X_551 = MIDPOINT OF X(1) AND X(2) (0.5544, 0.2166) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_1125 = COMPLEMENT OF X(10) (0.5459, 0.2083) X_519 = ISOGONAL CONJUGATE OF X(106) (0.9566, 0.6107) X_751 = ISOGONAL CONJUGATE OF X(750) (0.5754, 0.2311) X_226 = -CEVA CONJUGATE OF X(65) (0.5778, 0.2588) X_1365 = BRISSE TRANSFORM OF X(110) (0.7771, 0.1231) X_3993 = com[INVERSE(n(INCENTRAL TRIANGLE))] (0.5931, 0.2484) A B C X10 X37 X1 X87 X536 X551 X75 X1125 X519 X751 X226 X1365 X3993 (a, b, c) = (5, 6, 7) | AB = 1

X3993 (X984com[INVERSE(n(INCENTRAL TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3993 = X_984com[INVERSE(n(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,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03993(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3993 = X_984com[INVERSE(n(INCENTRAL TRIANGLE))] on reference triangle ABC."""
            X_3993 = eval_barycentric_point(model, A, B, C, '((b + c)*(2*a**(2) + a*b + a*c - b*c))', ID="X_3993", classes=["selected", "target"])
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            central_line(model, X_10, X_37, 10, 37, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_87 = eval_trilinear_point(model, A, B, C, '1/(a*b + a*c - b*c)', ID="X_87", classes=["center", "incident"])
            central_line(model, X_1, X_87, 1, 87, incident=True)
            X_536 = eval_barycentric_point(model, A, B, C, '2*b*c - c*a - a*b', ID="X_536", classes=["center", "incident"])
            X_551 = eval_trilinear_point(model, A, B, C, '(4*a + b + c)/a', ID="X_551", classes=["center", "incident"])
            central_line(model, X_536, X_551, 536, 551, incident=True)
            return promote_point_to_top(model, X_3993)


        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_3993 on the given reference triangle."""
            model = create_model('X_3993 = X_984com[INVERSE(n(INCENTRAL TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03993(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-03993.json"))
            write_center_svg(
                model_acute,
                here / "x-03993.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )