Python Code
===========

Sauvegarder des nodes en code Python
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.. code-block:: python

    import os
    import hou

    # set what to store
    sel = hou.selectedNodes()[0]
    code = sel.asCode(brief=False, recurse= True)
    # print(code)

    # set script name
    ui = hou.ui.readInput(
        message="set the script name",
        initial_contents=sel.name(),
        buttons= ["SAVE", "CANCEL"],
        title = "script name")
    scriptname = "test"
    print(ui)

    if ui[0] == 0:
        # set path
        path = os.environ
        # for x, y in path.items():
        #     print(x, y)
        pref = path.get('HOUDINI_USER_PREF_DIR')
        # print(pref)
        path = pref + "/snippets/" + ui[1] + ".py"
        # print(path)
        file = open(path, 'w')
        file.write(code)
        file.close()

Charger et exécuter un script Python
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.. code-block:: python

    import os
    import hou

    path = os.environ
    pref = path.get('HOUDINI_USER_PREF_DIR')
    path = pref + "/snippets/"

    # define python script to load and execute
    file = hou.ui.selectFile(path, title="select a python script")
    # reading python file
    openfile = hou.readFile(file)
    # execute python file
    exec(openfile)


Caméra et visualiseur de scène (scene viewer)
---------------------------------------------

.. code-block:: python

    import toolutils
    import hou

    # define cam and objects
    cam = hou.node("/obj/cam1")
    box = hou.node("/obj/box1")
    # save parms of camera
    focal = cam.parm("focal").eval()
    aperture = cam.parm("aperture").eval()
    # defining viewer
    viewer = toolutils.sceneViewer().curViewport()
    # print(viewer)
    viewer.lockCameraToView(True)
    # framing the view to the box
    box.setSelected(1,1)
    viewer.frameSelected()
    # assign the viewer to the camera
    viewer.saveViewToCamera(cam)
    viewer.setCamera(cam)
    # load/ reapply parms
    cam.parm("focal").set(focal)
    cam.parm("aperture").set(aperture)
    # viewer.lockCameraToView(True)