Yes - use a cache form for drawing the points directly and pass the entire
image to FormCanvas, ala:
 
"Create some random points"
rnd _ Random new.
points _ (1 to: 5000) collect:[:i| (rnd next @ rnd next * 400)
asIntegerPoint].
"Make us a canvas"
fc _ FormCanvas on: Display.
"Create a cached form for drawing all these points"
cacheForm _ Form extent: 400 at 400 depth: Display depth.
"Setup BB"
bb _ BitBlt toForm: cacheForm.
bb combinationRule: Form over.
bb width: 1; height: 1.
bb fillColor: Color red.
"Now draw these points offscreen"
points do:[:pt| bb destOrigin: pt; copyBits].
"And finally paint the entire image"
fc paintImage: cacheForm at: 0 at 0.
 
This should be a lot faster than anything else.
 
  - Andreas

-----Original Message-----
From: Gerardo Richarte [mailto:core.lists.squeak at core-sdi.com]
Sent: Tuesday, May 02, 2000 6:20 PM
To: squeak at cs.uiuc.edu
Cc: recipient list not shown
Subject: Re: BitBlt >> #pixelAt:put: speed



  
Andres Valloud wrote: 

> > Is there anything faster I can do? for example using Balloon somehow? 
> 
> Are you trying to do that directly on the World's canvas? Did you try to 
> draw them in a buffer and then draw the buffer form? 


    Eh! Andres! (que haces? como va todo por ahi?) 


    I'm not sure what am I doing, I'm just drawing on the canvas I get as
argument 
in Morph >> #drawOn: 
    So you think I should use an intermediate Canvas for this? 


    Thanks! 


    Liencistas Bye!    (just for spanish speaking people, sorry) 
    Richie++ 


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