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Making images partially transparant in Draw
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Phelixfil
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PostPosted: Thu Feb 03, 2011 8:21 am    Post subject: Making images partially transparant in Draw Reply with quote

I have two black and white images and I want to place one on top of the other. When I do this the square white frame of the overlayed image becomes visible. Is it possible to transform this image so that it comprises Black and Transparant (Instead of Black and White)?
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ftack
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PostPosted: Thu Feb 03, 2011 8:56 am    Post subject: Reply with quote

Yes, provided you use a graphics file format that supports transparency. jpg does not. An alternative might be to crop the white border away.
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Phelixfil
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PostPosted: Thu Feb 03, 2011 9:09 am    Post subject: Making images partially transparant in Draw Reply with quote

Hi Thanks or that. The images are cut and pasted from the internet so I don't know how I would change them so that they become graphics files. I'm also not sure how I would go about cropping.
The image is square at the moment and needs to be cropped to form a circle. Any suggestions gratefully received.
Cheers, P
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ftack
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PostPosted: Thu Feb 03, 2011 9:42 am    Post subject: Reply with quote

You could right-click the image, then choose "wrap", then "edit contour".
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Phelixfil
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PostPosted: Thu Feb 03, 2011 9:50 am    Post subject: Making images partially transparant in Draw Reply with quote

It doesn't give me the option to "wrap" when I right click...
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keme
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PostPosted: Thu Feb 03, 2011 1:24 pm    Post subject: Re: Making images partially transparant in Draw Reply with quote

Phelixfil wrote:
...
The image is square at the moment and needs to be cropped to form a circle. Any suggestions gratefully received.
Draw a filled circle the size you want your image, and place it over your image.
Select the image and the circle object (drag selection rectangle across, or use shift+click to select the second object).
Menu selection Modify - Shapes - Intersect.
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ftack
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PostPosted: Thu Feb 03, 2011 2:06 pm    Post subject: Re: Making images partially transparant in Draw Reply with quote

Phelixfil wrote:
It doesn't give me the option to "wrap" when I right click...

You probably should check again.
Keme's suggestion might be more convenient.
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PostPosted: Fri Feb 04, 2011 2:15 am    Post subject: Making images partially transparant in Draw Reply with quote

I definitely don't see the option "wrap" when I right click the object
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Phelixfil
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PostPosted: Tue Feb 08, 2011 2:31 am    Post subject: Reply with quote

Still struggling with this one...
I am using OOdraw. I have two B&W images. They were cut and pasted from the net.
I want to superimopose one image on top of the other. The image that goes on top is a circle. When I do this it becomes apparent that the image is not a circle but a square.

In order to get around this problem I have drawn another circle superimposed that on top of the circle I want to put on top of the image. Selected both those images and then followed: Modify, Shapes, Intersect. This has the desired effect of turning my image into a true circle. However the circle I have drawn becomes the dominant image and I can no longer see the image I want.
I have tried sending it to the back and making the filling transparent but no joy Crying or Very sad
If anyonone out there has any ideas I would be very very happy to hear from you.
Cheers,
P
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ftack
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PostPosted: Tue Feb 08, 2011 5:12 am    Post subject: Reply with quote

Try clicking the image that must be "dominant" first, then the circle. Then use the "Intersect" command.
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PostPosted: Tue Feb 08, 2011 6:11 am    Post subject: Reply with quote

In order to access the commands "Modify" "Shapes" and "intersect" I have to drag over both objects (the one superimposed on the other) to highlight them both. If I click on the topmost object as yuo suggest, they aren't both highlighted and the "intersect" command is not available.
This is really very silly but I am sure there must be a solution there somewhere and I'll bet it's not that far away
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PostPosted: Tue Feb 08, 2011 7:22 am    Post subject: Reply with quote

Click the first object, then hold the shift key pressed, then click the second object.
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PostPosted: Tue Feb 08, 2011 7:57 am    Post subject: Reply with quote

Yup, tried that already and something weird happens.
first click highlights the first object (8 green squares) and the second click (holding shift) now unites the two objects as if they were one (8 green squares). The two objects are now fixed and I can move them all over the page but can no longer superimpose one on top of the other.
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ftack
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PostPosted: Tue Feb 08, 2011 8:42 am    Post subject: Reply with quote

... then select the command "Modify - Shapes - Intersect".
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PostPosted: Tue Feb 08, 2011 9:39 am    Post subject: Reply with quote

Yup that too. Then they disappear completely!
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