NUI Group - Open Source Interface

Copy MTInnerWindow content to another Widget

2010-03-12T19:51:21Z

Hello guys, just a thought that I had in mind yesterday and I’m sure it is doable. I’m still thinking about it may be helpful to everyone. In the pymt 0.4 desktop example, I thought adding to it one feature. I thought of adding a fixed panel that can be used as temporal container that hold a copy of MTInnerWindow content. To copy it user can drag MTInnerWindow to the fixed panel. Or by double tapping on the MTInnerWindow then on fixed panel. To remove the copy of the content from the panel, apply double tapping. I attached a figure help to explain it a bit more. What are the approaches that can be used to achieve this. Everyone welcome to give an opinion. Thanks.

How to rotate Lable.

2010-03-07T23:25:10Z

Does anyone has an idea on how to rotate objects such as MTInnerWindow and Lables in pymt using code? I want to rotate object 180 degree and then adding them to the MTWindows. I was lookng at API documentation for PyMT but I couldn’t find anything. Thanks in advance.

errors with Pymt 0.4

2010-02-27T09:11:50Z

what’s wrong?

>>> from pymt import *
[INFO ] PyMT v0.4
[INFO ] [No OpenGL_accelerate module loaded] No module named OpenGL
_accelerate
[INFO ] [Logger ] Record log in X:\Users\Alex/.pymt/logs\pymt_10-0
2-27_2.txt
[INFO ] [Unable to load registered array format handler numeric]
Traceback (most recent call last):
File “D:\Python26\lib\site-packages\OpenGL\arrays\formathandler.py”, line 44,
in loadPlugin
plugin_class = entrypoint.load()
File “D:\Python26\lib\site-packages\OpenGL\plugins.py”, line 14, in load
return importByName( self.import_path )
File “D:\Python26\lib\site-packages\OpenGL\plugins.py”, line 28, in importByNa
me
module = __import__( “.”.join(moduleName), {}, {}, moduleName)
File “D:\Python26\lib\site-packages\OpenGL\arrays\numeric.py”, line 15, in dule>
raise ImportError( “""No Numeric module present: %s"""%(err))
ImportError: No Numeric module present: No module named Numeric

[INFO ] [Camera ] using as camera provider
[INFO ] [Text ] using as text provider
[INFO ] [Video ] using as video provider
[INFO ] [OSC ] using for socket
[INFO ] [Loader ] using as thread loader
[INFO ] [Window ] use Pygame as window provider.
[INFO ] [Window ] OpenGL version <1.1.0>

Gesture detector for a ScatterWidget?

2010-02-26T12:31:10Z

I have a question regarding on the gesture for PyMT. I’m new baby to PyMT as I was missing around with code to kill some free time.

This is a scenario. I create number of MTScatterWidgets and I added a gesture to each one of these ScatterWidget. Then I added all ScatterWidgets to MTWindow. In side ScatterWidgets, I define on_touch_move function that takes touches, touchID, x, y. Now, my question is how to call the gesture detector for the ScatterWidget that I only touch. I though of making the ScatterWidgets in an array and call the gesture detector to check their position to know which Scatter Widget I am moving. I’m assuming that I’m using the right logic if not then a help from you guys are appreciated.

This simple snap shot of the code

def gesture_add_default(gdb):
    g = gdb.str_to_gesture(' ') # long string for letter N gesture
    g.label = 'Letter N'
    g.id = 'N'
    gdb.add_gesture(g)

class MTSourceWidget(MTScatterWidget):        
    def __init__(self, **kwargs):                
        super(MTSourceWidget, self).__init__(**kwargs)
        self.flag = "Rectangle"        

    def draw(self):            
        if cmp(self.flag," Rectangle ") == 0 :
            drawRectangle((0,0) ,(self.width, self.height))
        elif cmp(self.flag,"Circle") == 0 :                        
            drawCircle(pos=(0, 0), radius=1.0, linewidth=None)
    
    def on_touch_move(self, touches, touchID, x, y):
            MTScatterWidget.on_touch_move(self, touches, touchID, x, y)
            
            ##############
            # Should I call the gesture detector here and how to call it??
            # because I want to change the value of flag from rectangle to circle  or from circle to rectangle every time the the gesture get detected 
            ##############

class MTGestureDetector(MTGestureWidget):
    def __init__(self, gdb, **kwargs):
            super(MTGestureDetector, self).__init__(**kwargs)
            self.gdb = gdb    

def on_gesture(self, gesture, x, y):
                try:
                         score, best = self.gdb.find(gesture)
                except Exception, e:
                                                return
    

# I added the gesture to the database
gesture_db = GestureDatabase()
gesture_add_default(gesture_db)
_gesture = MTGestureDetector(gesture_db)


_mtWidget1 = MTWidget()
_mtWidget2 = MTWidget()
_mtWidget3 = MTWidget()
_mtWidget1.add_widget(_gesture)
_mtWidget2.add_widget(_gesture)
_mtWidget3.add_widget(_gesture)
_mtsWidget1 = MTSourceWidget(pos=(300,300))
_mtsWidget2 = MTSourceWidget(pos=(100,500))
_mtsWidget3 = MTSourceWidget(pos=(200,600))
_mtWidget1.add_widget(_mtsWidget1)
_mtWidget2.add_widget(_mtsWidget2)
_mtWidget3.add_widget(_mtsWidget3)
_mtWin = MTWindow(fullscreen=False)
win.add_widget(_mtWidget1)
win.add_widget(_mtWidget2)
win.add_widget(_mtWidget3)
runTouchApp()

New PyMT 0.4 Released

2010-02-09T07:57:32Z

PyMT is an open source library for developing multi-touch
applications. It is completely cross platform (Linux/OSX/Win) and
released under the terms of the GNU LGPL.

PyMT official website : http://pymt.txzone.net/
PyMT planet : http://pymt.txzone.net/planet/
API reference : http://pymt.txzone.net/docs/api/

What’s new in PyMT 0.4 ?

The complete release note is available here :
http://pymt.txzone.net/?page=releasenotes

* Move to LGPL License
* Avoid usage of Pyglet
** Backend splitting (Audio, Video, Text, Image, Camera...)
** Switch to PyOpenGL (10% more performances)
* Lot of speed improvements everywhere
* Lot of bugfix in widgets and core
* New animation framework
* New widgets (coverflow, sidepanel, video, container)
* New modules (keybinding, recordvideo, mjpegserver)
* New input processor: retain touch (reuse the last “up” touch under
certain circumstances)
* Designer App: text editor + pymt rendering (avoid slow loading)
* New Developer’s Guide on wiki
* Improved API documentation

More informations ?

Take a look at the document : “Migrate to new PyMT”
http://pymt.txzone.net/wiki/index.php/Documentation/Migrate

Thanks to all the contributors for this release :
Christopher Denter, Nathanaël Lécaudé, Thomas Hansen, Sharath Patali
and Ryan Coyner !

Mathieu

Problem Creating Label in PyMT

2010-02-16T02:00:08Z

So when I’m creating a MTLabel with quite a lot of text it seems to crash. Currently trying to port some 0.3.1 code to 0.4. Any ideas or alternatives? Basically I need to render a large multi-paragraph blob of text.

Traceback (most recent call last):
  File "nodes.py", line 365, in <module>
    octopus.add_widget(Article(visible=False,images="octopus.jpg", text=''.join([i for i in open('octopus.txt')]), heading="Blue-Lined Octopus", width=500))
  File "nodes.py", line 35, in __init__
    self.text = MTLabel(label=text, multiline=True, autoheight=True)
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/ui/widgets/label.py", line 60, in __init__
    label = getLabel(label=self.label, **self.kwargs)
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/graphx/draw.py", line 64, in getLabel
    obj = pymt.Label(label, **kwargs)
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/core/text/__init__.py", line 71, in __init__
    self.label      = label
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/core/text/__init__.py", line 264, in _set_label
    self.refresh()
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/core/text/__init__.py", line 227, in refresh
    self.render(real=True)
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/core/text/__init__.py", line 210, in render
    self.texture = pymt.Texture.create(*self.size)
  File "/usr/local/lib/python2.6/dist-packages/PyMT-0.4-py2.6.egg/pymt/texture.py", line 188, in create
    format, GL_UNSIGNED_BYTE, data)
  File "/usr/lib/pymodules/python2.6/OpenGL/wrapper.py", line 1282, in __call__
    return self._finalCall( *args, **named )
  File "/usr/lib/pymodules/python2.6/OpenGL/wrapper.py", line 681, in wrapperCall
    raise err
OpenGL.error.GLError: GLError(
    err = 1281,
    description = 'invalid value',
    baseOperation = glTexImage2D,
    pyArgs = (
        GL_TEXTURE_2D,
        0,
        GL_RGBA,
        4096,
        512,
        0,
        GL_RGBA,
        GL_UNSIGNED_BYTE,
        <pymt.texture.c_ubyte_Array_4096_Arra...,
    ),
    cArgs = (
        GL_TEXTURE_2D,
        0,
        GL_RGBA,
        4096,
        512,
        0,
        GL_RGBA,
        GL_UNSIGNED_BYTE,
        <pymt.texture.c_ubyte_Array_4096_Arra...,
    ),
    cArguments = (
        GL_TEXTURE_2D,
        0,
        GL_RGBA,
        4096,
        512,
        0,
        GL_RGBA,
        GL_UNSIGNED_BYTE,
        c_void_p(2962477064L),
    )
)

PyMT on Win7 - WM_TOUCH error

2010-01-20T09:16:01Z

Hi, i installed pymt version 0.31 on my dell latitude xt2 - running with win7 32bit. I tested some examples - but pymt couldn’t found wm_touch, so only tuio and mouse as input would be accepted. The input part in config-file looks so:
[input]
default = tuio, 0.0.0.0:3333
wm_touch = wm_touch
mouse = mouse
wm_pen = wm_pen

... and the warning looks so:
[WARNING] Unknown provider
[WARNING] Unknown provider
[INFO] listening for Tuio on 0.0.0.0:3333
[INFO] Leaving application in progress…

I’m happy about some advice or hints.

Speech Recognition in PyMT

2009-12-21T06:17:54Z

Ive been experimenting with pocket sphinx from CMU and was able to integrate speech recognition for controlling pymt widgets. This adds a new dimesion to the framework. Waiting eagerly to see how people use this

[vimeo]8296468[/vimeo]

Problem running PyMT examples on windows XP

2010-01-16T16:16:53Z

hi, i have installed PyMT on a windows xp 32bit PC using the windows installer package.

When i try to run a demo app i get this error:

C:\Python26> python C:\pymt\launcher.py
Traceback (most recent call last):
  File "C:\pymt\launcher.py", line 4, in <module>
    proc = subprocess.Popen(['python', 'start.py'] + sys.argv[1:], cwd='desktop'
)
  File "C:\Python26\lib\subprocess.py", line 595, in __init__
    errread, errwrite)
  File "C:\Python26\lib\subprocess.py", line 804, in _execute_child
    startupinfo)
WindowsError: [Error 267] The directory name is invalid

The file ‘lib/subprocess.py’ is missing....

PyMT Gesture Questions

2009-11-02T20:02:17Z

I have a question regarding on the gesture for PyMT.
Was it possible to create a gesture on start point to indicate the direction such as, to indicate up when stroking up, down when stroking down, left when stroking left and right when stroking right.

Another question will be how to create this new gestures so that i could convert it to an unique ID using this, gesture_to_str

Btw, i am quite a newbie in both Multi-touch and PyMT.