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

    Click :ref:`here <sphx_glr_download_auto_examples_meshtest.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_meshtest.py:


Mesh manipulation
-----------------

Using a mesh and modifying it while it is displayed



.. image:: /auto_examples/images/sphx_glr_meshtest_001.png
    :class: sphx-glr-single-img





.. code-block:: default


    from __future__ import absolute_import
    from soma import aims
    import time
    import os
    import anatomist.direct.api as anatomist
    import sys
    from soma.qt_gui.qt_backend.QtGui import qApp
    from soma.qt_gui.qt_backend import Qt
    import sys
    import six

    # create a unit sphere of radius 1 and 500 vertices
    m = aims.SurfaceGenerator.sphere(aims.Point3df(0, 0, 0), 1, 500, False)

    # Multiply the sphere size by 100
    for p in six.moves.xrange(m.vertex().size()):
        m.vertex()[p] *= 100

    runloop = Qt.QApplication.instance() is None

    # Open Anatomist
    a = anatomist.Anatomist()

    # Put the mesh in anatomist
    am = a.toAObject(m)
    am.releaseAppRef()

    # Create a new 3D window in Anatomist
    aw = a.createWindow('3D')
    # c = anatomist.CreateWindowCommand( '3D' )
    # proc.execute( c )
    # aw = c.createdWindow()

    # Put the mesh in the created window
    a.addObjects(am, aw)
    # c = anatomist.AddObjectCommand( [ am ], [ aw ] )
    # proc.execuFalsete( c )

    # keep a copy of original vertices
    coords = [aims.Point3df(m.vertex()[i])
              for i in six.moves.xrange(len(m.vertex()))]
    # take one vertex out of 3
    points = six.moves.xrange(0, len(coords), 3)

    for i in six.moves.xrange(10):
        # shrink
        for s in reversed(six.moves.xrange(100)):
            for p in points:
                m.vertex()[p] = coords[p] * s / 100.
            am.setChanged()
            am.notifyObservers()
            qApp.processEvents()
            time.sleep(0.01)
        # expand
        for s in six.moves.xrange(100):
            for p in points:
                m.vertex()[p] = coords[p] * s / 100.
            am.setChanged()
            am.notifyObservers()
            qApp.processEvents()
            time.sleep(0.01)

    # display in matplotlib for sphinx_gallery
    s = 0
    for p in points:
        m.vertex()[p] = coords[p] * s / 100.
    am.setChanged()
    am.notifyObservers()
    if aw.sphinx_gallery_snapshot():
        runloop = False
    if runloop:
        Qt.QApplication.instance().exec_()
    if runloop or 'sphinx_gallery' in sys.modules:
        del aw, am, m


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

   **Total running time of the script:** ( 0 minutes  27.855 seconds)


.. _sphx_glr_download_auto_examples_meshtest.py:


.. only :: html

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



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

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