Beispiel #1
0
    def Set(self, check=1, redo=1, updateOwnGui=True, **kw):
        """set data for this object: Set polylines's vertices
check=1 : verify that all the keywords present can be handle by this func 
redo=1 : append self to viewer.objectsNeedingRedo
updateOwnGui=True : allow to update owngui at the end this func
"""
        redoFlags = apply(Geom.Set, (self, check, 0), kw)

        c = self.vertexSet.vertices

        rad = kw.get('radii')
        if rad is not None:
            values = valideFloat(rad, len(c))
            if values is not None:
                self.radii = values
                redoFlags |= self._redoFlags['redoDisplayListFlag']

        ang = getkw(kw, 'angles')
        if ang is not None:
            values = valideFloat(ang, len(c))
            if values is not None:
                self.angles = values
                redoFlags |= self._redoFlags['redoDisplayListFlag']

        quality = getkw(kw, 'quality')
        if quality is not None:
            assert type(quality) == types.IntType and quality > 1
            self.nsegments = quality
            redoFlags |= self._redoFlags['redoDisplayListFlag']

        return self.redoNow(redo, updateOwnGui, redoFlags)
    def Set(self, check=1, redo=1, updateOwnGui=True, **kw):
        """set data for this object: Set polylines's vertices
check=1 : verify that all the keywords present can be handle by this func 
redo=1 : append self to viewer.objectsNeedingRedo
updateOwnGui=True : allow to update owngui at the end this func
"""
        redoFlags = apply( Geom.Set, (self, check, 0), kw )

        c = self.vertexSet.vertices

        rad = kw.get('radii')
        if rad is not None:
            values = valideFloat(rad, len(c))
            if values is not None:
                self.radii = values
                redoFlags |= self._redoFlags['redoDisplayListFlag']
                
        ang = getkw(kw, 'angles')
        if ang is not None:
            values = valideFloat(ang, len(c))
            if values is not None:
                self.angles = values
                redoFlags |= self._redoFlags['redoDisplayListFlag']
                
        quality = getkw(kw, 'quality')
        if quality is not None:
            assert type(quality)==types.IntType and quality > 1
            self.nsegments = quality
            redoFlags |= self._redoFlags['redoDisplayListFlag']

        return self.redoNow(redo, updateOwnGui, redoFlags)
Beispiel #3
0
    def __init__(self, **kw):
        if __debug__:
            if hasattr(DejaVu, 'functionName'): DejaVu.functionName()

        self.Reset()
        self.Set(factor=getkw(kw, 'factor'), pattern=getkw(kw, 'pattern'))

        if len(kw):
            print 'WARNING5: Keyword(s) %s not used' % kw.keys()
    def __init__(self, **kw):
        if __debug__:
         if hasattr(DejaVu, 'functionName'): DejaVu.functionName()

	self.Reset()
	self.Set( factor = getkw(kw, 'factor'),
		  pattern = getkw(kw, 'pattern'))

	if len(kw):
	    print 'WARNING5: Keyword(s) %s not used' % kw.keys()
Beispiel #5
0
    def __init__(self, geom, **kw):
        if __debug__:
            if hasattr(DejaVu, 'functionName'): DejaVu.functionName()

        self.geom = geom
        self.Reset()
        self.Set(factor=getkw(kw, 'factor'),
                 unit=getkw(kw, 'unit'),
                 lineWidth=getkw(kw, 'lineWidth'),
                 color=getkw(kw, 'color'))

        if len(kw):
            print 'WARNING3: Keyword(s) %s not used' % kw.keys()
    def __init__(self, geom, **kw):
        if __debug__:
         if hasattr(DejaVu, 'functionName'): DejaVu.functionName()

        self.geom = geom
	self.Reset()
	self.Set( factor = getkw(kw, 'factor'),
		  unit = getkw(kw, 'unit'),
		  lineWidth = getkw(kw, 'lineWidth'),
		  color = getkw(kw, 'color') )

	if len(kw):
	    print 'WARNING3: Keyword(s) %s not used' % kw.keys()
Beispiel #7
0
    def Set(self, **kw):
        if __debug__:
            if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
        """Set members"""

        val = getkw(kw, 'factor')
        if val:
            assert type(val).__name__ == 'int' and val > 0
            self.factor = val

        val = getkw(kw, 'pattern')
        if val:
            assert val > 0x0000 and val < 0xFFFF
            self.pattern = val

        if len(kw):
            print 'WARNING4: Keyword(s) %s not used' % kw.keys()
Beispiel #8
0
    def Set(self, **kw):
	"""Set various light model parameters"""

        self.viewer.currentCamera.Activate()

        tagModified = True
        val = getkw(kw, 'tagModified')
        if val is not None:
            tagModified = val
        assert tagModified in [True, False]
        self._modified = tagModified

	ambi = getkw(kw, 'ambient')
	if not ambi is None:
	    if len(ambi)==3 or len(ambi)==4: 
	        self.ambient = OneColor( ambi )
	        GL.glLightModelfv(GL.GL_LIGHT_MODEL_AMBIENT, self.ambient);
	    else: 
	        raise ValueError('length of new color must be 3 or 4') 

	localViewer = getkw(kw, 'localViewer')
	if not localViewer is None:
	    if localViewer in (True,1):
		GL.glLightModelf(GL.GL_LIGHT_MODEL_LOCAL_VIEWER,
			       GL.GL_TRUE);
	    elif localViewer in (False,0):
		GL.glLightModelf(GL.GL_LIGHT_MODEL_LOCAL_VIEWER,
			       GL.GL_FALSE);
	    else: raise AttributeError('localViewer can only be True or False')
	    self.localViewer = localViewer

	twoSide = getkw(kw, 'twoSide')
	if not twoSide is None:
	    if twoSide in (True,1):
		GL.glLightModelf(GL.GL_LIGHT_MODEL_TWO_SIDE,
			       GL.GL_TRUE);
	    elif twoSide in (False,0):
		GL.glLightModelf(GL.GL_LIGHT_MODEL_TWO_SIDE,
			       GL.GL_FALSE);
	    else: raise AttributeError('twoSide can only be True or False')
	    self.twoSide = twoSide

        self.broadcast()
        
	if len(kw):
	    print 'WARNING8: Keyword(s) %s not used' % kw.keys()
    def Set(self, **kw):
        if __debug__:
         if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
	"""Set members"""

	val = getkw(kw, 'factor')
	if val:
	    assert type(val).__name__ == 'int' and val > 0
	    self.factor = val

	val = getkw(kw, 'pattern')
	if val:
	    assert val > 0x0000 and val < 0xFFFF
	    self.pattern = val

	if len(kw):
	    print 'WARNING4: Keyword(s) %s not used' % kw.keys()
    def Set(self, **kw):
        if __debug__:
         if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
	"""Set members"""

	val = getkw(kw, 'pattern')
	if val is not None:
	    assert type(val).__name__ == 'ndarray'
	    assert val.shape[0] == 128
	    assert val.dtype.char == 'B'
	    self.pattern = val

	if len(kw):
	    print 'WARNING6: Keyword(s) %s not used' % kw.keys()
Beispiel #11
0
    def Set(self, **kw):
        if __debug__:
            if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
        """Set members"""

        val = getkw(kw, 'pattern')
        if val is not None:
            assert type(val).__name__ == 'ndarray'
            assert val.shape[0] == 128
            assert val.dtype.char == 'B'
            self.pattern = val

        if len(kw):
            print 'WARNING6: Keyword(s) %s not used' % kw.keys()
Beispiel #12
0
    def Set(self, check=1, redo=1, updateOwnGui=True, **kw):
        """set data for this object: add faces (polygon or lines) to this object
check=1 : verify that all the keywords present can be handle by this func 
redo=1 : append self to viewer.objectsNeedingRedo
updateOwnGui=True : allow to update owngui at the end this func
"""
        redoFlags = apply( Geom.Set, (self, check, 0), kw)

        c = self.vertexSet.vertices

        rad = kw.get('radii')
        if rad is not None:
            values = valideFloat(rad, len(c))
            if values is not None:
                redoFlags |= self._redoFlags['redoDisplayListFlag']
                self.radii = values
                
        ang = getkw(kw, 'angles')
        if ang is not None:
            values = valideFloat(ang, len(c))
            if values is not None:
                redoFlags |= self._redoFlags['redoDisplayListFlag']
                self.angles = values

        vec = getkw(kw, 'vectors')
        if vec is not None:
            if len(vec)==3:
                self.vectors = [vec]
            else:
                assert len(vec)==len(c)
                for v in vec:
                    assert len(v)==3
                self.vectors = vec
            redoFlags |= self._redoFlags['redoDisplayListFlag']

        return self.redoNow(redo, updateOwnGui, redoFlags)
Beispiel #13
0
    def Set(self, check=1, redo=1, updateOwnGui=True, **kw):
        """set data for this object: add faces (polygon or lines) to this object
check=1 : verify that all the keywords present can be handle by this func 
redo=1 : append self to viewer.objectsNeedingRedo
updateOwnGui=True : allow to update owngui at the end this func
"""
        redoFlags = apply(Geom.Set, (self, check, 0), kw)

        c = self.vertexSet.vertices

        rad = kw.get('radii')
        if rad is not None:
            values = valideFloat(rad, len(c))
            if values is not None:
                redoFlags |= self._redoFlags['redoDisplayListFlag']
                self.radii = values

        ang = getkw(kw, 'angles')
        if ang is not None:
            values = valideFloat(ang, len(c))
            if values is not None:
                redoFlags |= self._redoFlags['redoDisplayListFlag']
                self.angles = values

        vec = getkw(kw, 'vectors')
        if vec is not None:
            if len(vec) == 3:
                self.vectors = [vec]
            else:
                assert len(vec) == len(c)
                for v in vec:
                    assert len(v) == 3
                self.vectors = vec
            redoFlags |= self._redoFlags['redoDisplayListFlag']

        return self.redoNow(redo, updateOwnGui, redoFlags)
    def Set(self, redo=0,**kw):
        if __debug__:
         if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
	"""Set members"""

	val = getkw(kw, 'factor')
	if val is not None:
	    assert type(val).__name__ == 'float'
	    self.factor = val

	val = getkw(kw, 'unit')
	if val is not None:
	    assert type(val).__name__ == 'float'
	    self.unit = val

	val = getkw(kw, 'lineWidth')
	if val is not None:
	    assert val >= 1
	    self.lineWidth = int(val)

	val = getkw(kw, 'color')
	if val is not None:
	    color = OneColor( val )
	    if color: self.color = color

	val = getkw(kw, 'lighting')
	if val is not None:
	    assert val in [False, True]
	    self.lighting = val

	val = getkw(kw, 'colorAsMaterial')
	if val is not None:
	    assert val in [False,True]
	    self.colorAsMaterial = val

        if self.geom.viewer is not None:
            #self.geom.RedoDisplayList()
            self.geom.viewer.deleteOpenglList()
        
	if len(kw):
	    print 'WARNING2: Keyword(s) %s not used' % kw.keys()
Beispiel #15
0
    def Set(self, redo=0, **kw):
        if __debug__:
            if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
        """Set members"""

        val = getkw(kw, 'factor')
        if val is not None:
            assert type(val).__name__ == 'float'
            self.factor = val

        val = getkw(kw, 'unit')
        if val is not None:
            assert type(val).__name__ == 'float'
            self.unit = val

        val = getkw(kw, 'lineWidth')
        if val is not None:
            assert val >= 1
            self.lineWidth = int(val)

        val = getkw(kw, 'color')
        if val is not None:
            color = OneColor(val)
            if color: self.color = color

        val = getkw(kw, 'lighting')
        if val is not None:
            assert val in [False, True]
            self.lighting = val

        val = getkw(kw, 'colorAsMaterial')
        if val is not None:
            assert val in [False, True]
            self.colorAsMaterial = val

        if self.geom.viewer is not None:
            #self.geom.RedoDisplayList()
            self.geom.viewer.deleteOpenglList()

        if len(kw):
            print 'WARNING2: Keyword(s) %s not used' % kw.keys()
Beispiel #16
0
    def Set(self, check=1, **kw):
	"""Set various parameters for texture objects:
- image=im  set an image as the texture to be used. im can be either a Numeric
array of bytes with shape (n x m x d) where d can be either 3 or 4.
Im can also be a PIL Image object. If thes image is not of type 'RGB' or
'RGBA' it will be converted to 'RGB' if possible, else ... error !

"The set command will also pad the image to make sure that width and height
are powers of 2." (has been tested for Image but not for Numeric array yet - guillaume)
"""
        if __debug__:
            if check:
                apply( checkKeywords, (self.name,self.keywords), kw)

	val = getkw(kw, 'enable')
	if not val is None:
	    assert val in (viewerConst.YES, viewerConst.NO), "enable can only be YES or NO"
	    self.enabled = val

	val = getkw(kw, 'wrapS')
	if not val is None:
	    assert val in (GL.GL_REPEAT, GL.GL_CLAMP)
	    self.wrap[0] = val

	val = getkw(kw, 'wrapT')
	if not val is None:
	    assert val in (GL.GL_REPEAT, GL.GL_CLAMP)
	    self.wrap[1] = val

	val = getkw(kw, 'magFilter')
	if not val is None:
	    assert val in (GL.GL_NEAREST, GL.GL_LINEAR)
	    self.magFilter = val

	val = getkw(kw, 'minFilter')
	if not val is None:
	    assert val in (GL.GL_NEAREST, GL.GL_LINEAR)
	    self.minFilter = val

	val = getkw(kw, 'genModS')
	if not val is None:
	    assert val in (GL.GL_OBJECT_LINEAR, GL.GL_EYE_LINEAR, GL.GL_SPHERE_MAP)
	    self.genMod[0] = val

	val = getkw(kw, 'genModT')
	if not val is None:
	    assert val in (GL.GL_OBJECT_LINEAR, GL.GL_EYE_LINEAR, GL.GL_SPHERE_MAP)
	    self.genMod[1] = val

	val = getkw(kw, 'genPlaneS')
	if not val is None:
	    assert val in (GL.GL_OBJECT_PLANE, GL.GL_EYE_PLANE)
	    self.genPlane[0] = val

	val = getkw(kw, 'genPlaneT')
	if not val is None:
	    assert val in (GL.GL_OBJECT_PLANE, GL.GL_EYE_PLANE)
	    self.genPlane[1] = val

	val = getkw(kw, 'planeS')
	if not val is None:
	    assert len(val)==4 and type(val[0])==type(0.0), "Plane has to be 4Float vector"
	    self.plane[0] = val

	val = getkw(kw, 'planeT')
	if not val is None:
	    assert len(val)==4 and type(val[0])==type(0.0), "Plane has to be 4Float vector"
	    self.plane[1] = val

	val = getkw(kw, 'level')
	if not val is None:
	    assert type(val)==type(0) and val >=0
	    self.level = val

	val = getkw(kw, 'auto')
	if not val is None:
	    assert val in (viewerConst.YES,viewerConst.NO), "auto can only be YES or NO"
	    self.auto = val

	val = getkw(kw, 'envMode')
	if not val is None:
	    assert val in (GL.GL_MODULATE, GL.GL_REPLACE, GL.GL_DECAL, GL.GL_BLEND ), "envMode can only be GL_MODULATE, GL_DECAL, or GL_BLEND"
	    self.envMode = val
	val = getkw(kw, 'envColor')
	if val:
	    col = OneColor(val)
	    if col: self.envColor = col

	b = getkw(kw, 'border')
	f = getkw(kw, 'format')
	im = getkw(kw, 'image')
	if im is not None:

            if isinstance(im, Image.Image):
                lImInstaceImage = True
            else:
                lImInstaceImage = False

            if lImInstaceImage is True:
                width = im.size[0]
                height = im.size[1]
            else:
                height = im.shape[0]
                width = im.shape[1]

            # find smallest power of 2 larger than image size
            dim1 = 1
            dim2 = 1
            while dim1 < width:
                dim1 = dim1 << 1
            while dim2 < height:
                dim2 = dim2 << 1
            self.resizeRatio = ( width / float(dim1),
                                 height / float(dim2) )

            if os.name != 'nt': #sys.platform != 'win32':
                lMaxTextureSize = GL.glGetInteger(GL.GL_MAX_TEXTURE_SIZE)
                #print "width", width, height, dim1, dim2, lMaxTextureSize
                if (dim1 > lMaxTextureSize) or (dim2 > lMaxTextureSize):
                    warnings.warn('texture map too big for this implementation of opengl %d'%lMaxTextureSize)

            if lImInstaceImage is True:
                if im.mode !='RGB' and im.mode !='RGBA':
                    im = im.convert('RGB')
                im = im.transpose(Image.FLIP_TOP_BOTTOM)
                imstr = im.tostring()
                imarr = Numeric.fromstring( imstr, 'B')
                if im.mode=='RGB':
                    imarr.shape = (height, width, 3)
                elif im.mode=='RGBA':
                    imarr.shape = (height, width, 4)
                im = imarr
                
            if (dim1 != width) or (dim2 != height):
                if len(im.shape) == 3:
                    newArray = Numeric.zeros( (dim2, dim1, len(im[0][0]) ) )
                else:
                    newArray = Numeric.zeros( (dim2, dim1 ) )
                for i in range(height):
                    for j in range(width):    
                        newArray[i][j] = im[i][j]
                im = newArray.astype('B')

	    if b:
		assert type(b)==type(0)
	    else: b = 0
	    self.border = b

	    if f:
		assert f in (GL.GL_RGB, GL.GL_RGBA), "format can only be GL_RGB or GL_RGBA"

	    assert type(im).__name__ == 'ndarray'
	    assert im.dtype.char == 'B'
	    if im.shape[-1] == 3:
		if f and f != GL.GL_RGB: raise ValueError("bad image format")
	        self.format = GL.GL_RGB
	    elif im.shape[-1] == 4:
		if f and f != GL.GL_RGBA: raise ValueError("bad image format")
	        self.format = GL.GL_RGBA

                for o in self.objects:
                    o.transparent=1
                    o.inheritMaterial=0
                    if self.viewer:
                        self.viewer.objectsNeedingRedo[o] = None
                    
	    l = len(im.shape)
	    if l==2:
		w=im.shape[0] - 2*b
		q, r  = divmod(math.log(w)/math.log(2), 1)
		if r != 0.0:
		    raise ValueError("Image width must be 2**m +2b")
		self.dim = GL.GL_TEXTURE_1D
		self.image = im
		self.width = im.shape[0]

	    elif l==3:
		w=im.shape[0] - 2*b
		q, r  = divmod(math.log(w)/math.log(2), 1)
		if r != 0.0:
		    raise ValueError("Image width must be 2**m +2b")
		h=im.shape[1] -2*b
		q, r  = divmod(math.log(h)/math.log(2), 1)
		if r != 0.0:
		    raise ValueError("Image height must be 2**m +2b")
		self.dim = GL.GL_TEXTURE_2D
		self.image = im
		self.width = im.shape[1]
		self.height = im.shape[0]

	    else:
		raise ValueError("Bad shape for image")

        if self.viewer:
            self.viewer.deleteOpenglList()
            self.viewer.Redraw()
Beispiel #17
0
    def Set(self, **kw):
        """Set various clipping plane parameters"""

        self.hasBeenCurrent = True  # remember the light has been changed

        tagModified = True
        val = getkw(kw, 'tagModified')
        if val is not None:
            tagModified = val
        assert tagModified in [True, False]
        self._modified = tagModified

        val = getkw(kw, 'enabled')
        if not val is None:
            if val is True:
                self._Enable(1)
            elif val is False:
                self._Disable()
            else:
                raise AttributeError('enable can only be True or False')
            self.enabled = val

        val = getkw(kw, 'name')
        if not val is None: self.name = val

        val = getkw(kw, 'visible')
        if not val is None:
            if val in [False, True]:
                self.visible = val
            else:
                raise AttributeError('visible can only be 0 or 1')

        val = getkw(kw, 'color')
        if not val is None:
            col = OneColor(val)
            if col:
                self.color = col

        val = getkw(kw, 'lineWidth')
        if not val is None:
            try:
                int(val)
            except:
                raise ValueError('lineWidth must be a positive int')
            if val >= 1:
                self.lineWidth = int(val)
            else:
                raise ValueError('lineWidth must be a positive int')

#	val = getkw(kw, 'antialiased')
#	if not val is None:
#	    if val in (True, False) :
#		self.antialiased = val
#	    else: raise ValueError ('antialiased can only be YES or NO')

        val = getkw(kw, 'rotation')
        if not val is None:
            self.rotation = Numeric.identity(4, 'f').ravel()
            mat = Numeric.reshape(Numeric.array(val), (16, )).astype('f')
            self.ConcatRotation(mat)

        val = getkw(kw, 'translation')
        if not val is None:
            self.translation = Numeric.zeros((3, ), 'f')
            mat = Numeric.reshape(Numeric.array(val), (3, )).astype('f')
            self.ConcatTranslation(mat)

        val = getkw(kw, 'scale')
        if not val is None:
            self.SetScale(val)

        val = getkw(kw, 'pivot')
        if not val is None:
            self.SetPivot(val)

        if len(kw):
            print 'WARNING1: Keyword(s) %s not used' % kw.keys()

        if self.object.viewer:
            self.object.viewer.objectsNeedingRedo[self.object] = None
            self.object.viewer.Redraw()
Beispiel #18
0
    def Set(self, **kw):
	"""Set various clipping plane parameters"""

	self.hasBeenCurrent = True # remember the light has been changed

        tagModified = True
        val = getkw(kw, 'tagModified')
        if val is not None:
            tagModified = val
        assert tagModified in [True, False]
        self._modified = tagModified

	val = getkw(kw, 'enabled')
	if not val is None:
	    if val is True:
                self._Enable(1)
	    elif val is False:
                self._Disable()
	    else: raise AttributeError('enable can only be True or False')
            self.enabled = val

	val = getkw(kw, 'name')
	if not val is None: self.name = val

	val = getkw(kw, 'visible')
	if not val is None:
	    if val in [False,True]:
                self.visible = val
	    else:
                raise AttributeError('visible can only be 0 or 1')

	val = getkw(kw, 'color')
	if not val is None:
	    col = OneColor( val )
	    if col:
		self.color = col

	val = getkw(kw, 'lineWidth')
	if not val is None:
	    try:
	        int(val)
	    except:
	        raise ValueError ('lineWidth must be a positive int')
	    if val>=1:
	        self.lineWidth = int(val)
	    else:
	        raise ValueError ('lineWidth must be a positive int')
            

#	val = getkw(kw, 'antialiased')
#	if not val is None:
#	    if val in (True, False) :
#		self.antialiased = val
#	    else: raise ValueError ('antialiased can only be YES or NO')

	val = getkw(kw, 'rotation')
	if not val is None:
            self.rotation = Numeric.identity(4, 'f').ravel()
            mat = Numeric.reshape(Numeric.array(val), (16,)).astype('f')
            self.ConcatRotation(mat)

	val = getkw(kw, 'translation')
	if not val is None:
            self.translation = Numeric.zeros( (3,), 'f')
            mat = Numeric.reshape(Numeric.array(val), (3,)).astype('f')
            self.ConcatTranslation(mat)

	val = getkw(kw, 'scale')
	if not val is None:
            self.SetScale( val )

	val = getkw(kw, 'pivot')
	if not val is None:
            self.SetPivot( val )

	if len(kw):
	    print 'WARNING1: Keyword(s) %s not used' % kw.keys()

        if self.object.viewer:
            self.object.viewer.objectsNeedingRedo[self.object] = None
            self.object.viewer.Redraw()
Beispiel #19
0
    def Set(self, **kw):
        """ set light values.  For direction, position, and spot direction,
vals are given in absolute coordinates (independent of camera or
object).  For these three values, the flag is set to 1 when they are
changed.
"""
        #print "Light.Set"
        self.hasBeenCurrent = True # remember the light has been changed

        tagModified = True
        val = getkw(kw, 'tagModified')
        if val is not None:
            tagModified = val
        assert tagModified in [True, False]
        self._modified = tagModified

        self.viewer.currentCamera.Activate()
        
	val = getkw(kw, 'ambient')
	if not val is None:
	    #self.ambient = OneColor( val )
	    #GL.glLightfv(self.num, GL.GL_AMBIENT, self.ambient )
	    if len(val)==3 or len(val)==4: 
	        self.ambient = OneColor( val )
                GL.glLightModelfv(GL.GL_LIGHT_MODEL_AMBIENT, self.ambient)
                GL.glLightfv(self.num, GL.GL_AMBIENT, self.ambient) # needed for mesa 
	    else: 
	        raise ValueError('length of new color must be 3 or 4') 

	val = getkw(kw, 'diffuse')
	if not val is None:
	    self.diffuse = OneColor( val )
	    GL.glLightfv(self.num, GL.GL_DIFFUSE, self.diffuse )

	val = getkw(kw, 'specular')
	if not val is None:
	    self.specular = OneColor( val )
	    GL.glLightfv(self.num, GL.GL_SPECULAR, self.specular )

	val = getkw(kw, 'direction')
	if not val is None:
            val = list(val)
            if len(val)==3: val += [0.]
            assert len(val)==4
	    self.direction = val
	    self.direction[3] = 0.0
            self.dirFlag = 1  # tell the camera to redraw this light
            self.positional = False

	val = getkw(kw, 'position')
	if not val is None:
            val = list(val)
            if len(val)==3: val += [1.]
            assert len(val)==4
	    self.position = val
	    self.position[3] = 1.0
            self.posFlag = 1  # tell the camera to redraw this light
            self.positional = True

	val = getkw(kw, 'spotDirection')
	if not val is None:
            val = list(val)
            if len(val)==3: val += [0.]
            assert len(val)==4
	    self.spotDirection = val
	    self.spotDirection[3] = 0.0
            self.spotFlag = 1  # tell the camera to redraw this light

	val = getkw(kw, 'spotExponent')
	if not val is None:
	    self.spotExponent = float(val)
	    GL.glLightfv(self.num, GL.GL_SPOT_EXPONENT, [self.spotExponent])
            
	val = getkw(kw, 'spotCutoff')
	if not val is None:
            if val > 180.:
                raise ValueError("spotCutoff must be in [0., 90.] or 180.")
	    self.spotCutoff = float( val )
	    GL.glLightfv(self.num, GL.GL_SPOT_CUTOFF, [self.spotCutoff] )

	val = getkw(kw, 'constantAttenuation')
	if not val is None:
	    self.constantAttenuation = float( val )
            if self.constantAttenuation < 0.0:
                raise ValueError("constantAttenuation must be >= 0.0")
	    GL.glLightfv(self.num, GL.GL_CONSTANT_ATTENUATION,
                         [self.constantAttenuation] )

	val = getkw(kw, 'linearAttenuation')
	if not val is None:
	    self.linearAttenuation = float( val )
            if self.linearAttenuation < 0.0:
                raise ValueError("linearAttenuation must be >= 0.0")
	    GL.glLightfv(self.num, GL.GL_LINEAR_ATTENUATION,
                         [self.linearAttenuation] )

	val = getkw(kw, 'quadraticAttenuation')
	if not val is None:
	    self.quadraticAttenuation = float( val )
            if self.quadraticAttenuation < 0.0:
                raise ValueError("quadraticAttenuation must be >= 0.0")
	    GL.glLightfv(self.num, GL.GL_QUADRATIC_ATTENUATION,
                         [self.quadraticAttenuation] )

	val = getkw(kw, 'positional')
	if not val is None:
	    if val is True: self.position[3] = 1.0
	    elif val is False: self.position[3] = 0.0
	    else: raise AttributeError('positional can only be True or False')
	    self.positional = val

	val = getkw(kw, 'enabled')
	if not val is None:
	    if val in (True, 1): GL.glEnable(self.num)
	    elif val in (False, 0): GL.glDisable(self.num)
	    else: raise AttributeError('enabled can only be True or False')
            self.enabled = val
            
	val = getkw(kw, 'visible')
	if not val is None:
	    if val in (True, False): self.visible = val
	    else: raise AttributeError('visible can only be True or False')

	val = getkw(kw, 'lineWidth')
	if not val is None:
	    if val >= 1:
                self.lineWidth = int(val)
	    else: raise AttributeError('lineWidth has to be >= 1')

	val = getkw(kw, 'length')
	if not val is None:
	    if val > 0.0: self.length = float ( val )
	    else: raise AttributeError('length has to be > 0.0')

#	val = getkw(kw, 'antialiased')
#	if not val is None:
#	    if val in (True, False):
#		self.antialiased = val
#	    else: raise ValueError ('antialiased can only be True or False')

	val = getkw(kw, 'rotation')
	if not val is None:
            mat = Numeric.reshape(Numeric.array(val), (16,)).astype('f')
            self.rotation = mat

	val = getkw(kw, 'translation')
	if not val is None:
            mat = Numeric.reshape(Numeric.array(val), (3,)).astype('f')
            self.translation = mat

	val = getkw(kw, 'scale')
	if not val is None:
            mat = Numeric.reshape(Numeric.array(val), (3,)).astype('f')
            self.scale = mat

	val = getkw(kw, 'pivot')
	if not val is None:
            mat = Numeric.reshape(Numeric.array(val), (3,)).astype('f')
            self.pivot = mat

	if len(kw):
	    print 'WARNING9: Keyword(s) %s not used' % kw.keys()

        #guillaume vareille 9/29/2005 : 
        # was c = self.viewer.cameras[0]
        # was generating alternativly good and wrong rendering when 2 cameras 
        c = self.viewer.currentCamera 
        
        # force light to be update in viewer
        c.Redraw()

        # brodcast to other application that want to know about that light
        # using aftere does not seem to make it better
        #c.after_idle(self.broadcast)
        self.broadcast()