after an image is moved to a new location, how to delete the image at the old location?

zxo102 zxo102 at yahoo.com
Tue Aug 1 19:07:37 PDT 2006


Hi everyone, 
       I need your help. What I want to do is to move an image around based on location data in wxpython.
     As shown in the code below (modified based on the Image.py in 
wxpython demo), an image is created at location 1:  (50,10) with 
rotated angle 1.12.  Now, suppose I got another set of new data, I want 
to move the image to location 2:  (166,400) with rotated angle 1.5. 
case 1: 
     if I use 
     "wx.StaticBitmap(panel, -1, bmp2, (166, 400), (bmp2.GetWidth(), 
bmp2.GetHeight()))", 
     everything is fine but I don't know how to delete the image at 
location 1. 
case 2: 
     If I use 
     "kk.SetBitmap(bmp2)" (see the code below), 
     the rotated image (angle 1.5) is put to location 1: (50,10) 
instead of location 2: (166,400). Or I don't know how to move the image 
to the new location (166,400).
  Anybody knows how to solve the above problem? or is there other way to implement it? 
   
  Thanks a lot.
   
  Ouyang 


  ############################################# 
def runTest(frame, nb, log): 
    bmp = wx.Image(opj('bitmaps/image.bmp'), wx.BITMAP_TYPE_BMP) 
    bmp.SetMask(True) 
      # image.bmp is originally located in (50,10) with rotated angle 
1.12 
    x = 50 
    y = 10 
    angle = 1.12 
    bmp1 = bmp.Rotate(angle, (x,y), True,None) 
    bmp1 = bmp1.ConvertToBitmap() 
    panel = wx.Panel(nb, -1) 
      kk = wx.StaticBitmap(panel, -1, bmp1, (x, y), (bmp1.GetWidth(), 
bmp1.GetHeight())) 
     # Now image.bmp is  relocated at (166,400) with rotated angle 1.5 
      x= 166 
    y = 400 
    angle = 1.5 
    bmp2 = bmp.Rotate(angle, (x,y), True,None) 
    bmp2 = bmp2.ConvertToBitmap() 
    wx.StaticBitmap(panel, -1, bmp2, (x,y), (bmp2.GetWidth(), 
bmp2.GetHeight())) 
      #kk.SetBitmap(bmp2) 
      return panel 
###########################################################3 


 		
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