{
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    {
      "cell_type": "code",
      "execution_count": null,
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      "source": [
        "%gui qt"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Multi-view Volume Plot\n\nPlot various views of a structural MRI.\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
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      "source": [
        "import numpy as np\n\nfrom vispy import io, plot as vp\n\nfig = vp.Fig(bgcolor='k', size=(800, 800), show=False)\n\nvol_data = np.load(io.load_data_file('brain/mri.npz'))['data']\nvol_data = np.flipud(np.rollaxis(vol_data, 1))\nvol_data = vol_data.astype(np.float32)\n\nclim = [32, 192]\ntexture_format = \"auto\"  # None for CPUScaled, \"auto\" for GPUScaled\n\nvol_pw = fig[0, 0]\nv = vol_pw.volume(vol_data, clim=clim, texture_format=texture_format)\nvol_pw.view.camera.elevation = 30\nvol_pw.view.camera.azimuth = 30\nvol_pw.view.camera.scale_factor /= 1.5\n\nshape = vol_data.shape\nfig[1, 0].image(vol_data[:, :, shape[2] // 2], cmap='grays', clim=clim,\n                fg_color=(0.5, 0.5, 0.5, 1), texture_format=texture_format)\nfig[0, 1].image(vol_data[:, shape[1] // 2, :], cmap='grays', clim=clim,\n                fg_color=(0.5, 0.5, 0.5, 1), texture_format=texture_format)\nfig[1, 1].image(vol_data[shape[0] // 2, :, :].T, cmap='grays', clim=clim,\n                fg_color=(0.5, 0.5, 0.5, 1), texture_format=texture_format)\n\nif __name__ == '__main__':\n    fig.show(run=True)"
      ]
    }
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