X3203

X54-CEVA CONJUGATE OF X39

< 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) { 83, 110 }: Central Line L(83, 110) { 32, 184 }: Central Line L(32, 184) { 140, 141 }: Central Line L(140, 141) { 6, 3202 }: Central Line L(6, 3202) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_54 = KOSNITA POINT (0.5880, 0.2176) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_83 = CEVAPOINT OF CENTROID AND SYMMEDIAN POINT (0.5651, 0.2360) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_32 = 3rd POWER POINT (0.6400, 0.3332) X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496) X_140 = MIDPOINT OF X(3) AND X(5) (0.5281, 0.1755) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_3202 = -CEVA CONJUGATE OF X(32) (0.5821, -0.1114) X_3203 = -CEVA CONJUGATE OF X(39) (0.5970, 0.2043) A B C X54 X39 X83 X110 X32 X184 X140 X141 X6 X3202 X3203 (a, b, c) = (5, 6, 7) | AB = 1

X3203 (X54-CEVA CONJUGATE OF X39) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3203 = X_54-CEVA CONJUGATE OF X_39."""

        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,
            crosspoint,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03203(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3203 = X_54-CEVA CONJUGATE OF X_39 on reference triangle ABC."""
            X_1342 = eval_trilinear_point(model, A, B, C, 'sin(A) + cos(A)*cot( omega  /2)', ID="X_1342", classes=["center"])
            X_1343 = eval_trilinear_point(model, A, B, C, 'sin(A) - cos(A)*tan( omega  /2)', ID="X_1343", classes=["center"])
            X_3203 = crosspoint(model, A, B, C, X_1342, X_1343, ID="X_3203", classes=["selected", "target"])
            X_83 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) + c**(2))', ID="X_83", classes=["center", "incident"])
            X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
            central_line(model, X_83, X_110, 83, 110, incident=True)
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            X_184 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A)', ID="X_184", classes=["center", "incident"])
            central_line(model, X_32, X_184, 32, 184, incident=True)
            X_140 = eval_trilinear_point(model, A, B, C, '2*cos(A) + cos(B - C)', ID="X_140", 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_140, X_141, 140, 141, incident=True)
            return promote_point_to_top(model, X_3203)


        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_3203 on the given reference triangle."""
            model = create_model('X_3203 = X_54-CEVA CONJUGATE OF X_39')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03203(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-03203.json"))
            write_center_svg(
                model_acute,
                here / "x-03203.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )