But doesn't this mean that if my the portion of the screen that I'm
interested in is only 3 by 5 or so, then there is basically no way to get a
non extrapolated set of pixels that will print to 3 by 5 on the page?
On Fri, Feb 22, 2008 at 3:57 PM, Michael J. Hammel <
[EMAIL PROTECTED]> wrote:
> On Fri, 2008-02-22 at 23:41 +0100, Daniel Hornung wrote:
> > But maybe one of the
> > actual book writers on this list may tell you more. *hint*
> I guess that's my cue. :-)
> The screen resolution is in pixels. One pixel = one dot. Most monitors
> give you between 72 and 100 DPI, or dots per inch. You'll notice that
> you have a monitor that is 15"-24" inches across depending on how they
> measure such things. So you have 72*15 = 1080 dots across the screen
> for the 15" monitor. Now how do you convert that to printing for a
> Well, in the book you want the same image but at a smaller size. A
> typical book is likely less than a typical piece of paper (around 8.5").
> In fact, the actual image size is likely to be around 2"-4" across. So
> what DPI do you need to squeeze 1080 dots into (splitting the
> difference) 3"? 1080/3 = 360DPI. If you set your image resolution
> (using Image->Scale Image and changing the X and Y resolution) to 300
> DPI, then your image will be 3.6" across. How do I know this?
> 1. Create a new image (blank white background) at any size.
> 2. Image->Scale Image, then set the width to 1080 pixels. Click on
> "Scale" to scale the image to that size.
> 3. Image->Scale Image, then set the resolution to 300 for the X and Y
> resolution. Click on "Scale" to change the image resolution.
> 4. Image->Scale Image, then change the options menu next to the "Height"
> field from pixels to inches. Now you can see how wide your image is
> going to be when it's 1080 pixels across.
> Clear as mud? Try it a few times. It's not that hard to grasp once you
> see it in action.
> Michael J. Hammel Principal Software
> [EMAIL PROTECTED]
> He doesn't have ulcers, but he's a carrier.
> -- From a real employee performance evaluation.
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