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Re: huge image file. [message #66762 is a reply to message #66760]

Tue, 09 June 2009 10:48

natha
Messages: 482
Registered: October 2007

Senior Member

Using object graphics the IDLgrbuffer and the IDLgrclipboard have the
limitation of 4096x4096. I'm not sure if using direct graphics the
limitation is the same, but I think is it.
Maybe you can create an image and congrid its data. Using object
graphics, you can try something like this:

buffer=OBJ_NEW('IDlgrBuffer',DIMENSIONS=[4096,4096])
buffer->Draw, view ;; the view where you've the data

oImage=buffer->Read() ;; you get the image
oImage->GetProperty, DATA=data_image ;; the data of the image
data=CONGRID(data,4,12000,12000) ;; create the big image

WRITE_PNG, filename, data ;; save the image in a png file

I think this is possible. Using direct graphics you can do something
similar with the Z-buffer and TVRD procedure. Creates a 4096x4096
image and then you can congrid the image in order to obtain your
poster
Cheers,
nata

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[Message index]

		Re: huge image file. By: R.G. Stockwell on Thu, 11 June 2009 10:51
		Re: huge image file. By: pgrigis on Wed, 10 June 2009 07:46
		Re: huge image file. By: dcleon@gmail.com on Wed, 10 June 2009 06:46
		Re: huge image file. By: mankoff on Tue, 09 June 2009 12:02
		Re: huge image file. By: natha on Tue, 09 June 2009 10:48

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