
.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/scene/grid_layout/grid.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_gallery_scene_grid_layout_grid.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_scene_grid_layout_grid.py:


Multiple ViewBoxes on a Grid
============================

Test automatic layout of multiple viewboxes using Grid.

.. GENERATED FROM PYTHON SOURCE LINES 13-87



.. image-sg:: /gallery/scene/grid_layout/images/sphx_glr_grid_001.png
   :alt: grid
   :srcset: /gallery/scene/grid_layout/images/sphx_glr_grid_001.png
   :class: sphx-glr-single-img





.. code-block:: Python

    import sys
    import numpy as np

    from vispy import scene, app

    canvas = scene.SceneCanvas(keys='interactive')
    canvas.size = 600, 600
    canvas.show()

    # This is the top-level widget that will hold three ViewBoxes, which will
    # be automatically resized whenever the grid is resized.
    grid = canvas.central_widget.add_grid()


    # Add 4 ViewBoxes to the grid
    b1 = grid.add_view(row=0, col=0)
    b1.border_color = (0.5, 0.5, 0.5, 1)
    b1.camera = scene.PanZoomCamera(rect=(-0.5, -5, 11, 10))

    b2 = grid.add_view(row=0, col=1)
    b2.camera = 'turntable'
    b2.border_color = (0.5, 0.5, 0.5, 1)

    b3 = grid.add_view(row=1, col=0)
    b3.border_color = (0.5, 0.5, 0.5, 1)
    b3.camera = scene.PanZoomCamera(rect=(-10, -5, 15, 10))

    b4 = grid.add_view(row=1, col=1)
    b4.border_color = (0.5, 0.5, 0.5, 1)
    b4.camera = scene.PanZoomCamera(rect=(-5, -5, 10, 10))


    # Generate some random vertex data and a color gradient
    N = 10000
    pos = np.empty((N, 2), dtype=np.float32)
    pos[:, 0] = np.linspace(0, 10, N)
    pos[:, 1] = np.random.normal(size=N)
    pos[5000, 1] += 50

    color = np.ones((N, 4), dtype=np.float32)
    color[:, 0] = np.linspace(0, 1, N)
    color[:, 1] = color[::-1, 0]

    # Top grid cell shows plot data in a rectangular coordinate system.
    l1 = scene.visuals.Line(pos=pos, color=color, antialias=False, method='gl')
    b1.add(l1)
    grid1 = scene.visuals.GridLines(parent=b1.scene)

    # Bottom-left grid cell shows the same data with log-transformed X
    grid2 = scene.visuals.GridLines(parent=b2.scene)

    # Bottom-left grid cell shows the same data with log-transformed X
    e2 = scene.Node(parent=b3.scene)
    e2.transform = scene.transforms.LogTransform(base=(2, 0, 0))
    l2 = scene.visuals.Line(pos=pos, color=color, antialias=False, parent=e2,
                            method='gl')
    grid3 = scene.visuals.GridLines(parent=e2)

    # Bottom-right grid cell shows the same data again, but with a much more
    # interesting transformation.
    e3 = scene.Node(parent=b4.scene)
    affine = scene.transforms.MatrixTransform()
    affine.scale((1, 0.1))
    affine.rotate(10, (0, 0, 1))
    affine.translate((0, 1))
    e3.transform = scene.transforms.ChainTransform([
        scene.transforms.PolarTransform(),
        affine])
    l3 = scene.visuals.Line(pos=pos, color=color, antialias=False, parent=e3,
                            method='gl')
    grid4 = scene.visuals.GridLines(scale=(np.pi/6., 1.0), parent=e3)

    if __name__ == '__main__' and sys.flags.interactive == 0:
        app.run()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 2.092 seconds)


.. _sphx_glr_download_gallery_scene_grid_layout_grid.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: grid.ipynb <grid.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: grid.py <grid.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: grid.zip <grid.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_
