v0.11.0 Release Tour.ipynb

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   "source": [
    "## Manim v0.11.0 Release Tour\n",
    "\n",
    "This interactive worksheet contains an overview over the new features contained in the latest release of the community maintained version of Manim."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "central-quantity",
   "metadata": {},
   "outputs": [],
   "source": [
    "from manim import *\n",
    "\n",
    "config.media_width = \"80%\""
   ]
  },
  {
   "cell_type": "markdown",
   "id": "mexican-texas",
   "metadata": {},
   "source": [
    "### [#2075](https://github.com/ManimCommunity/manim/pull/2075): New method: `Mobject.set_default` for changing default values"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "everyday-shade",
   "metadata": {},
   "source": [
    "With the new `set_default` method it is easy to change default arguments for mobjects. For example, `Text.set_default(color=RED)` changes the default color of `Text` to red:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "multiple-tenant",
   "metadata": {},
   "outputs": [],
   "source": [
    "%%manim -qm -v WARNING ChangedDefaultDemo\n",
    "\n",
    "class ChangedDefaultDemo(Scene):\n",
    "    def construct(self):\n",
    "        Text.set_default(color=BLUE)\n",
    "        t = Text(\"This is blue text, magic!\")\n",
    "        \n",
    "        # You can also change multiple arguments at once:\n",
    "        Circle.set_default(color=GREEN, fill_opacity=0.5)\n",
    "        c = Circle()\n",
    "        VGroup(t, c).arrange(DOWN)\n",
    "        \n",
    "        self.add(t, c)\n",
    "\n",
    "        # Call the method without arguments to restore the default behavior!\n",
    "        Text.set_default()\n",
    "        Circle.set_default()"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bearing-album",
   "metadata": {},
   "source": [
    "\n",
    "### [#2094](https://github.com/ManimCommunity/manim/pull/2094): Implicit function plotting\n",
    "\n",
    "There is now a new Mobject allowing to plot points that satisfy some equation. Here is an example for the curves defined by $(x^2 + y^2)^2 - 42 (x^2 - y^2) = 0$ (yellow) and $x^3 - x + 1 - y^2 = 0$ (red)."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "determined-weight",
   "metadata": {},
   "outputs": [],
   "source": [
    "ImplicitFunction?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "grateful-vancouver",
   "metadata": {},
   "outputs": [],
   "source": [
    "%%manim -qm -v WARNING ImplicitFunctionDemo\n",
    "\n",
    "import numpy as np\n",
    "\n",
    "class ImplicitFunctionDemo(Scene):\n",
    "    def construct(self):\n",
    "        plane = NumberPlane()\n",
    "        curve = ImplicitFunction(\n",
    "            lambda x, y: (x**2 + y**2)**2 - 42*(x**2 - y**2),\n",
    "            color=YELLOW,\n",
    "            max_quads=2000,\n",
    "        )\n",
    "        self.add(plane)\n",
    "        self.play(Create(curve))\n",
    "        self.wait()\n",
    "        elliptic_curve = ImplicitFunction(\n",
    "            lambda x, y: x**3 - x + 1 - y**2,\n",
    "            color=RED,\n",
    "        )\n",
    "        self.play(Create(elliptic_curve))\n",
    "        self.wait()"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "hourly-aerospace",
   "metadata": {},
   "source": [
    "\n",
    "### [#1991](https://github.com/ManimCommunity/manim/pull/1991): Added support for boolean operations on `VMobject`s\n",
    "\n",
    "Manim can now compute the union, intersection, and difference of mobjects!"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "tutorial-receptor",
   "metadata": {},
   "outputs": [],
   "source": [
    "%%manim -qm -v WARNING BooleanOperationDemo\n",
    "\n",
    "class BooleanOperationDemo(Scene):\n",
    "    def construct(self):\n",
    "        VMobject.set_default(color=GREEN, fill_opacity=0.5)\n",
    "        Circle.set_default(radius=2, fill_opacity=0.5)\n",
    "        \n",
    "        c1 = Circle(color=YELLOW).shift(LEFT)\n",
    "        c2 = Circle(color=BLUE).shift(RIGHT)\n",
    "        circles = VGroup(c1, c2)\n",
    "        self.add(circles.scale(0.5))\n",
    "        \n",
    "        # Note: changing the default color and fill opacity for VMobject also affects subclasses\n",
    "        # like Union, Intersection, Difference, and Exclusion.\n",
    "        grid = VGroup(  \n",
    "            Union(c1, c2),\n",
    "            Intersection(c1, c2),\n",
    "            Difference(c1, c2),\n",
    "            Exclusion(c1, c2)\n",
    "        ).arrange_in_grid(2, 2, buff=3)\n",
    "        self.add(grid)\n",
    "        \n",
    "        VMobject.set_default()\n",
    "        Circle.set_default()"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "shaped-decimal",
   "metadata": {},
   "source": [
    "### [#2118](https://github.com/ManimCommunity/manim/pull/2118): Added 3D support for `ArrowVectorField` and `StreamLines`"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "younger-latex",
   "metadata": {},
   "source": [
    "When passing a `z_range` parameter to `ArrowVectorField` or `StreamLines`, the vector field will be rendered in three dimensions. **Note:** this example takes a bit longer to render."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "dedicated-market",
   "metadata": {},
   "outputs": [],
   "source": [
    "%%manim -qm -v WARNING --disable_caching ThreeDArrowVectorField\n",
    "\n",
    "class ThreeDArrowVectorField(ThreeDScene):\n",
    "    def construct(self):\n",
    "\n",
    "        def func(p):\n",
    "            return np.cross(p, np.array([0, 0, p[2]]))\n",
    "\n",
    "        vector_field = ArrowVectorField(\n",
    "            func,\n",
    "            x_range=[-2.5, 2.5, 1],\n",
    "            y_range=[-2.5, 2.5, 1],\n",
    "            z_range=[-1.5, 1.5, 1],\n",
    "        )\n",
    "        particle = Dot3D(OUT + RIGHT * 2)\n",
    "        self.add(vector_field, particle)\n",
    "        particle.add_updater(vector_field.get_nudge_updater(2))\n",
    "        self.move_camera(PI/3, -PI/4, run_time=3)\n",
    "        stream_lines = StreamLines(\n",
    "            func,\n",
    "            x_range=[-2.5, 2.5, 1.5],\n",
    "            y_range=[-2.5, 2.5, 1.5],\n",
    "            z_range=[-1.5, 1.5, 1.5],\n",
    "        )\n",
    "        self.play(FadeTransform(vector_field, stream_lines), run_time=0.5)\n",
    "        self.wait()"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "transparent-mount",
   "metadata": {},
   "source": [
    "To find out more about the exciting new features, fixed bugs, deprecated functions, and other improvements made in Manim v0.11.0, check out the full changelog at <https://docs.manim.community/en/stable/changelog/0.11.0-changelog.html>. Enjoy *manimating*!"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "spatial-adventure",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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