Example #1
0
File: data.py Project: joe311/vispy
    def __init__(self, size, *args):
        """ Initialize Data into default state. """

        GLObject.__init__(self)
        self._data = {}

        for dtype in args:
            dtype = np.dtype(dtype)
            if not dtype.fields:
                raise TypeError('dtype must be structured type')

            array = np.empty(size, dtype)
            buffer = VertexBuffer(array)
            for name in dtype.names:
                self._data[name] = array, buffer
Example #2
0
File: data.py Project: joe311/vispy
    def __init__(self, size, *args):
        """ Initialize Data into default state. """

        GLObject.__init__(self)
        self._data = {}

        for dtype in args:
            dtype = np.dtype(dtype)
            if not dtype.fields:
                raise TypeError('dtype must be structured type')

            array  = np.empty(size, dtype)
            buffer = VertexBuffer(array)
            for name in dtype.names:
                self._data[name] = array,buffer 
Example #3
0
    def __init__(self, target, data=None):
        """ Initialize buffer into default state. """

        GLObject.__init__(self)
        
        # Store and check target
        if target not in (gl.GL_ARRAY_BUFFER, gl.GL_ELEMENT_ARRAY_BUFFER):
            raise ValueError("Invalid target for buffer object.")
        self._target = target
        
        # Total bytes consumed by the elements of the buffer
        self._nbytes = 0
        
        # Indicate if a resize has been requested
        self._need_resize = False
        
        # Buffer usage (GL_STATIC_DRAW, G_STREAM_DRAW or GL_DYNAMIC_DRAW)
        self._usage = gl.GL_DYNAMIC_DRAW

        # Set data
        self._pending_data = []
        if data is not None:
            self.set_data(data)
Example #4
0
    def __init__(self, target, data=None):
        """ Initialize buffer into default state. """

        GLObject.__init__(self)

        # Store and check target
        if target not in (gl.GL_ARRAY_BUFFER, gl.GL_ELEMENT_ARRAY_BUFFER):
            raise ValueError("Invalid target for buffer object.")
        self._target = target

        # Total bytes consumed by the elements of the buffer
        self._nbytes = 0

        # Indicate if a resize has been requested
        self._need_resize = False

        # Buffer usage (GL_STATIC_DRAW, G_STREAM_DRAW or GL_DYNAMIC_DRAW)
        self._usage = gl.GL_DYNAMIC_DRAW

        # Set data
        self._pending_data = []
        if data is not None:
            self.set_data(data)