Well, dpi doesn't really mean anything. If I take an 800x800 72dpi
image and say it is 1x1 inches, then *poof* it's 800 dpi. Typically,
ppl use 72dpi images for screen display because that's about what your
monitor can display.
Is DPI really a concern to you? Number of pixels is really all you have
control of. Why do you want 800 dpi?
-Lee
> -----Original Message-----
> From: Ashley Martin [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 13, 2001 2:24 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [JAVA3D] How to create a jpeg file through the canvas
>
>
> Say I am using the NCSA portfolio to grab 2D jpeg images.
> When I check the
> resolution of the images they are only 72 dpi. I need to grab
> them at say
> 800 dpi. Can I do anything like this.
> Ashley .
>
>
>
> >From: Doug Twilleager <[EMAIL PROTECTED]>
> >Reply-To: Doug Twilleager <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Re: [JAVA3D] How to create a jpeg file through the canvas
> >Date: Tue, 13 Mar 2001 11:17:17 -0800
> >
> > >
> > >> understand the documentation, particularly the
> distinction between
> > >> postSwap() and postRender().
> > >
> > >postRender is after the 3D graphics rendering has finished and
> > >postSwap() is after any other composition might be
> finished. Effectively
> > >postSwap() is the last thing to occur before the
> background buffer is
> > >blitted to the screen.
> > >
> > >
> >
> >Not quite. postRender() is called when all geometries in the scene
> >graph have been rendered. This is the last chance for an application
> >to render into the back buffer before the back buffer is swapped into
> >the front buffer. postSwap() is called after the back
> buffer has been
> >swapped into the front buffer. Since readRaster() may only read the
> >front buffer, all image capture features need to be done in
> postSwap().
> >
> >Doug Twilleager
> >Sun Microsystems.
> >
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