Cycling 74 » Topic: Matrix stretching and image dimensions? http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/feed Wed, 19 Jun 2013 23:50:18 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-42542 <![CDATA[Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-42542 Thu, 26 Feb 2009 14:31:21 +0000 Ahto Hi

In short: I’m loading a bunch of images of different sizes onto a matrix. I don’t want the images to be stretched, but maintain their original sizes and aspect ratios instead.

Is there a way to get the original dimensions of the image file, to preform necessary calculations, or which other way is this to be done?

I have already considered making all the files the same size, making use of alpha channel for clearing the edges, but it would be much more convenient, if I didn’t have to process the files beforehand.

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152225 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152225 Thu, 26 Feb 2009 16:47:09 +0000 Jean-Francois Charles Maybe [jit.matrix @adapt 1]?
J-F.

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152226 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152226 Thu, 26 Feb 2009 18:30:03 +0000 Ahto OK, I’ll load the image with ‘@adapt 1′ set, then poll the matrix with ‘getdim’ and go from there – works alright, thanks!

Now I just want to check one more thing. I’m also working with jit.gl.videoplane. The ‘scale 1. 1. 1.’ is in relation to the render context dimensions?

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152227 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152227 Thu, 26 Feb 2009 19:04:39 +0000 Zachary Seldess Hi Ahto,

Sounds like you have it worked out, but just in case, here’s a patch that auto-scales the vidplane according to dim.

best,
Zachary

– Pasted Max Patch, click to expand. –

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152228 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152228 Fri, 27 Feb 2009 01:24:31 +0000 seejayjames
Ahto wrote on Thu, 26 February 2009 08:31
Hi

In short: I’m loading a bunch of images of different sizes onto a matrix. I don’t want the images to be stretched, but maintain their original sizes and aspect ratios instead.

Is there a way to get the original dimensions of the image file, to preform necessary calculations, or which other way is this to be done?

Also if you’re viewing the images in a jit.pwindow preview, you can change the dimensions of the jit.pwindow using the size $1 $2 command. This way it’ll display with the right dimensions. Sometimes if things are stretched weirdly, the internal dimensions are OK, but they may be stretched in the jit.pwindow and look strange, leading you to think (incorrectly) that something is funky with the image. To save space on the screen you could divide each dimension by 2 before the size command, and things should still look fine.

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152229 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152229 Sun, 17 May 2009 22:39:11 +0000 joshualeeginsburg hi –

i have the same request (view images appropriately scaled in a jit.window) but i cant follow exactly the steps suggested to solve it. could someone perhaps upload a simple solution?

thanks,

josh

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152230 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152230 Wed, 20 May 2009 13:16:42 +0000 Zachary Seldess Hi Joshua,

Didn’t I provide a solution above? Well here’s another one that automatically decides whether to letterbox or pillarbox the video based on the movie dim and the window dim. Hope it helps.

best,
Zachary

– Pasted Max Patch, click to expand. –

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152231 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152231 Wed, 20 May 2009 18:34:20 +0000 joshualeeginsburg hi –

thanks so much. for some reason i couldn’t get the first patch you loaded to work but the most recent one works perfectly.

realy appreciate it.

josh

]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152232 <![CDATA[Re: Matrix stretching and image dimensions?]]> http://cycling74.com/forums/topic/matrix-stretching-and-image-dimensions/#post-152232 Wed, 20 May 2009 21:59:04 +0000 Zachary Seldess Hi Josh,

Probably what was happening with the first one, was that the [loadmess 1] wasn’t sending when you pasted it into a new patch. You can double-click on it to send, or basically just change the scale value to something other than 0. Then it should work. But that patch is a slightly different approach to scaling, each will be useful in different contexts.

best,
Zachary

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