Date: Wed, 30 Sep 2009 18:13:05 +0300
From: Richmond Mathewson <[email protected]>
Subject: Re: Q: Can I use only a part of an Image File and do stuff
with it ?
To: How to use Revolution <[email protected]>
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Rolf Kocherhans wrote:
For instance I have an imported Image file (png) 10 pixels high and
100 pixels long.
From pixel 1 to 10 ist Picture_one, from pixel 11 to 20 is Picture
_two etc.
Can I the display those 2 respectively 10 pictures individually ?
Cheers
Rolf
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If you look up 'pixel' in the Documentation you will find that this
cannot be done.
However, you could chop up your image by importing snapshots of
parts of it:
on mouseUp
import snapshot from rectangle 0,0,300,454 of img "iXYZ"
move the last img to 512, 600
delete img "iXYZ"
end mouseUp
You can also
Select the Image
Group it
Crop the group so that it shows only one of your sub images.
In your example, that means you crop the group so that only pixels 1
thru 10 show.
LOCK the group's size and position
Change the location of the image
In your example, that would mean subtracting 10 from the
image's LEFT.
Each time you do that this would have the effect of stepping through
the 'frames' of your 'movie'.
Do it rapidly and you can make a kind of animation from a single
image.
Jim Lambert
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