X3790

X3662com[INVERSE(nT(bc, c²))]

< 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) { 8, 9 }: Central Line L(8, 9) { 10, 192 }: Central Line L(10, 192) { 11, 312 }: Central Line L(11, 312) { 1278, 1738 }: Central Line L(1278, 1738) { 190, 3416 }: Central Line L(190, 3416) { 341, 3704 }: Central Line L(341, 3704) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_8 = NAGEL POINT (0.4694, 0.1333) X_9 = MITTENPUNKT (0.5110, 0.1615) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_192 = -CEVA CONJUGATE OF X(2) (CONGRUENT PARALLELIANS POINT) (0.6147, 0.2635) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_312 = ISOTOMIC CONJUGATE OF X(57) (0.4256, 0.1081) X_1278 = CONGRUENT MIDWAY-PARALLELIANS POINT (0.3828, 0.0729) X_1738 = MIMOSA TRANSFORM OF X(105) (1.2925, 0.7221) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_3416 = ISOGONAL CONJUGATE OF X(3415) (0.4408, 0.0994) X_341 = ISOTOMIC CONJUGATE OF X(269) (0.3509, 0.0650) X_3704 = com(EXTOUCH TRIANGLE) (0.4421, 0.1132) X_3790 = com[INVERSE(nT(bc, c2))] (0.4311, 0.1074) A B C X8 X9 X10 X192 X11 X312 X1278 X1738 X190 X3416 X341 X3704 X3790 (a, b, c) = (5, 6, 7) | AB = 1

X3790 (X3662com[INVERSE(nT(bc, c²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3790 = X_3662com[INVERSE(nT(bc, c²))]."""

        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,
            feuerbach_point_of,
            mittenpunkt_of,
            nagel_point_of,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03790(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3790 = X_3662com[INVERSE(nT(bc, c²))] on reference triangle ABC."""
            X_3790 = eval_barycentric_point(model, A, B, C, '((b + c - a)*(b**(2) + c**(2) + b*c))', ID="X_3790", classes=["selected", "target"])
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            central_line(model, X_8, X_9, 8, 9, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", 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_10, X_192, 10, 192, incident=True)
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            X_312 = eval_trilinear_point(model, A, B, C, '(b + c - a)*b**(2)*c**(2)', ID="X_312", classes=["center", "incident"])
            central_line(model, X_11, X_312, 11, 312, incident=True)
            return promote_point_to_top(model, X_3790)


        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_3790 on the given reference triangle."""
            model = create_model('X_3790 = X_3662com[INVERSE(nT(bc, c²))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03790(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-03790.json"))
            write_center_svg(
                model_acute,
                here / "x-03790.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )