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

.. only:: html

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

        Click :ref:`here <sphx_glr_download_gallery_scene_text.py>`
        to download the full example code

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

.. _sphx_glr_gallery_scene_text.py:


Text in a Scene and ViewBox
===========================

Demonstrate the use of text in the root scene and a viewbox. Note
how the point size is independent of scaling of viewbox and canvas.

.. GENERATED FROM PYTHON SOURCE LINES 14-54



.. image-sg:: /gallery/scene/images/sphx_glr_text_001.png
   :alt: text
   :srcset: /gallery/scene/images/sphx_glr_text_001.png
   :class: sphx-glr-single-img





.. code-block:: default

    import sys
    import numpy as np

    from vispy import scene
    from vispy.scene.visuals import Text

    # Create canvas with a viewbox at the lower half
    canvas = scene.SceneCanvas(keys='interactive')
    vb = scene.widgets.ViewBox(parent=canvas.scene, border_color='b')
    vb.camera = scene.TurntableCamera(elevation=30, azimuth=30, up='+z')
    axis = scene.visuals.XYZAxis(parent=vb.scene)
    vb.camera.rect = 0, 0, 1, 1


    @canvas.events.resize.connect
    def resize(event=None):
        vb.pos = 1, canvas.size[1] // 2 - 1
        vb.size = canvas.size[0] - 2, canvas.size[1] // 2 - 2


    t1 = Text('Text in root scene (24 pt)', parent=canvas.scene, color='red')
    t1.font_size = 24
    t1.pos = canvas.size[0] // 2, canvas.size[1] // 3

    t2 = Text('Text in viewbox (18 pt)', parent=vb.scene, color='green',
              rotation=30)
    t2.font_size = 18
    t2.pos = 0.5, 0.3

    # Add a line so you can see translate/scale of camera
    N = 1000
    linedata = np.empty((N, 2), np.float32)
    linedata[:, 0] = np.linspace(0, 1, N)
    linedata[:, 1] = np.random.uniform(0.5, 0.1, (N,))
    scene.visuals.Line(pos=linedata, color='#f006', method='gl', parent=vb.scene)

    if __name__ == '__main__':
        canvas.show()
        if sys.flags.interactive != 1:
            canvas.app.run()


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

   **Total running time of the script:** ( 0 minutes  2.061 seconds)


.. _sphx_glr_download_gallery_scene_text.py:


.. only :: html

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



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

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



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

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


.. only:: html

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

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