{
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    {
      "cell_type": "code",
      "execution_count": null,
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      "source": [
        "%gui qt"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Spheres and Sticks\n\nDraw spherical Markers with Tube meshes connecting them.\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "import numpy as np\nfrom vispy import app, scene\n\n# Create canvas and view\ncanvas = scene.SceneCanvas(keys='interactive', size=(600, 600), show=True)\nview = canvas.central_widget.add_view()\nview.camera = scene.cameras.ArcballCamera(fov=0)\nview.camera.scale_factor = 500\n\n# Prepare data\nnp.random.seed(57983)\ndata = np.random.normal(size=(40, 3), loc=0, scale=100)\nsize = np.random.rand(40) * 100\ncolors = np.random.rand(40, 3)\n\ndata = np.concatenate([data, [[0, 0, 0]]], axis=0)\nsize = np.concatenate([size, [100]], axis=0)\ncolors = np.concatenate([colors, [[1, 0, 0]]], axis=0)\n\n\n# Create and show visual\nvis = scene.visuals.Markers(\n    pos=data,\n    size=100,\n    antialias=0,\n    face_color=colors,\n    edge_color='white',\n    edge_width=0,\n    scaling=True,\n    spherical=True,\n)\nvis.parent = view.scene\n\nlines = np.array([[data[i], data[-1]]\n                  for i in range(len(data) - 1)])\nline_vis = []\n\nfor line in lines:\n    vis2 = scene.visuals.Tube(line, radius=5)\n    vis2.parent = view.scene\n    line_vis.append(vis2)\n\nif __name__ == \"__main__\":\n    app.run()"
      ]
    }
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