'**SUMMARY**
Draw the actual pixels of the blob to another layer. This is handy if you
want to examine just the pixels inside the contour.
**PARAMETERS**
* *layer* - A drawing layer upon which to apply the mask.
* *offset* -  The offset from the top left corner where we want to place the mask.
**RETURNS**
This method either works on the original source image, or on the drawing layer provided.
The method does not modify object itself.
**EXAMPLE**
>>> img = Image("lenna")
>>> blobs = img.findBlobs(128)
>>> dl = DrawingLayer((img.width,img.height))
>>> blobs[-1].drawMaskToLayer(layer = dl)
>>> dl.show()'

def drawMaskToLayer(self, layer=None, offset=(0, 0)):

    if (layer is not None):
        layer = self.image.dl()
    mx = (self.mBoundingBox[0] + offset[0])
    my = (self.mBoundingBox[1] + offset[1])
    layer.blit(self.mImg, coordinates=(mx, my))
    return None
