X1359

BRISSE TRANSFORM OF X102

< A B C >: Reference Triangle △ABC < T_a T_b T_c >: Intouch (Contact) Triangle △T_a T_b T_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) incircle: Incircle of △ABC [ T_a X_1359 ]: Line [ T_a X_1359 ] [ T_b X_1359 ]: Line [ T_b X_1359 ] [ T_c X_1359 ]: Line [ T_c X_1359 ] { 4, 11 }: Central Line L(4, 11) { 12, 123 }: Central Line L(12, 123) { 55, 1295 }: Central Line L(55, 1295) { 269, 1358 }: Central Line L(269, 1358) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) T_a = Incircle Touchpoint T_a on BC (0.7673, 0.3599) T_b = Incircle Touchpoint T_b on CA (0.4082, 0.3999) T_c = Incircle Touchpoint T_c on AB (0.5714, 0.0000) X_1 = INCENTER (0.5714, 0.2333) X_4 = ORTHOCENTER (0.6122, 0.3958) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_123 = -OF-MEDIAL-TRIANGLE (0.5401, -0.0057) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_1295 = COLLINGS TRANSFORM OF X(123) (0.4680, -0.4072) X_269 = ISOGONAL CONJUGATE OF X(200) (0.6369, 0.3847) X_1358 = BRISSE TRANSFORM OF X(101) (0.7869, 0.1440) X_1359 = BRISSE TRANSFORM OF X(102) (0.5861, 0.4661) A B C Ta Tb Tc X1 X4 X11 X12 X123 X55 X1295 X269 X1358 X1359 (a, b, c) = (5, 6, 7) | AB = 1

X1359 (BRISSE TRANSFORM OF X102) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1359 = BRISSE TRANSFORM OF X_102."""

        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_trilinear_point,
            feuerbach_point_of,
            intersect_lines,
            orthocenter_of,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01359(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1359 = BRISSE TRANSFORM OF X_102 on reference triangle ABC."""
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center"])
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center"])
            X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center"])
            X_123 = eval_trilinear_point(model, A, B, C, '(csc(A))*(sec(B) - sec(C))*((sec(A))*((sin(B))**(2) - (sin(C))**(2)) + sin(C)*tan(C) - sin(B)*tan(B))', ID="X_123", classes=["center"])
            central_line(model, X_4, X_11, 4, 11)
            central_line(model, X_12, X_123, 12, 123)
            X_1359 = intersect_lines(model, X_4, X_11, X_12, X_123, ID="X_1359", classes=["selected", "target"])
            X_55 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)', ID="X_55", classes=["center", "incident"])
            X_1295 = point_from_barycentrics(model, A, B, C, 0.79525862, 0.88362069, -0.67887931, ID="X_1295", classes=["center", "incident"])
            central_line(model, X_55, X_1295, 55, 1295, incident=True)
            return promote_point_to_top(model, X_1359)


        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_1359 on the given reference triangle."""
            model = create_model('X_1359 = BRISSE TRANSFORM OF X_102')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01359(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-01359.json"))
            write_center_svg(
                model_acute,
                here / "x-01359.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )