{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Fill between 3D lines\n\nDemonstrate how to fill the space between 3D lines with surfaces. Here we\ncreate a sort of \"lampshade\" shape.\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "import matplotlib.pyplot as plt\nimport numpy as np\n\nN = 50\ntheta = np.linspace(0, 2*np.pi, N)\n\nx1 = np.cos(theta)\ny1 = np.sin(theta)\nz1 = 0.1 * np.sin(6 * theta)\n\nx2 = 0.6 * np.cos(theta)\ny2 = 0.6 * np.sin(theta)\nz2 = 2  # Note that scalar values work in addition to length N arrays\n\nfig = plt.figure()\nax = fig.add_subplot(projection='3d')\nax.fill_between(x1, y1, z1, x2, y2, z2, alpha=0.5, edgecolor='k')\n\nplt.show()"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        ".. tags::\n   plot-type: 3D,\n   plot-type: fill_between,\n   level: beginner\n\n"
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    },
    "language_info": {
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "mimetype": "text/x-python",
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.14.6"
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  "nbformat": 4,
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