X3963

X2309com[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) { 75, 141 }: Central Line L(75, 141) { 76, 192 }: Central Line L(76, 192) { 37, 313 }: Central Line L(37, 313) { 226, 306 }: Central Line L(226, 306) { 2, 1240 }: Central Line L(2, 1240) { 732, 894 }: Central Line L(732, 894) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_192 = -CEVA CONJUGATE OF X(2) (CONGRUENT PARALLELIANS POINT) (0.6147, 0.2635) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_313 = ISOTOMIC CONJUGATE OF X(58) (0.4368, 0.1249) X_226 = -CEVA CONJUGATE OF X(65) (0.5778, 0.2588) X_306 = ISOTOMIC CONJUGATE OF X(27) (0.3924, 0.0579) X_2 = CENTROID (0.5374, 0.2000) X_1240 = ISOTOMIC CONJUGATE OF X(1193) (0.4643, 0.1467) X_732 = EVEN (- 2, 2) INFINITY POINT (0.9745, 0.5915) X_894 = ISOGONAL CONJUGATE OF X(893) (0.5501, 0.2184) X_3963 = com[INVERSE(n(INCENTRAL TRIANGLE))] (0.4951, 0.1691) A B C X75 X141 X76 X192 X37 X313 X226 X306 X2 X1240 X732 X894 X3963 (a, b, c) = (5, 6, 7) | AB = 1

X3963 (X2309com[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_3963 = X_2309com[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,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03963(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3963 = X_2309com[INVERSE(n(INCENTRAL TRIANGLE))] on reference triangle ABC."""
            X_3963 = eval_barycentric_point(model, A, B, C, '(b*c*(b + c)*(a**(2) + b*c))', ID="X_3963", classes=["selected", "target"])
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
            central_line(model, X_75, X_141, 75, 141, incident=True)
            X_76 = eval_trilinear_point(model, A, B, C, '1/a**(3)', ID="X_76", classes=["center", "incident"])
            X_192 = eval_trilinear_point(model, A, B, C, 'b*c*(c*a + a*b - b*c)', ID="X_192", classes=["center", "incident"])
            central_line(model, X_76, X_192, 76, 192, incident=True)
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            X_313 = eval_trilinear_point(model, A, B, C, '(b + c)*b**(3)*c**(3)', ID="X_313", classes=["center", "incident"])
            central_line(model, X_37, X_313, 37, 313, incident=True)
            return promote_point_to_top(model, X_3963)


        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_3963 on the given reference triangle."""
            model = create_model('X_3963 = X_2309com[INVERSE(n(INCENTRAL TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03963(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-03963.json"))
            write_center_svg(
                model_acute,
                here / "x-03963.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )