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<TITLE>sane-devel: Re: Xsane-0.55: scan resolution selection (Epson 12</TITLE>
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<META NAME="Author" CONTENT="Dave Hill (dave@minnie.demon.co.uk)">
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<META NAME="Subject" CONTENT="Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)">
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<H1>Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)</H1>
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<STRONG>From:</STRONG> Dave Hill (<A HREF="mailto:dave@minnie.demon.co.uk?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38B28B90.BC2788B2@minnie.demon.co.uk>"><EM>dave@minnie.demon.co.uk</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Feb 22 2000 - 05:13:52 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0284.html">Dave Hill: "RPM build file"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0282.html">Mentore Siesto: "Re: backend fork/reader-process <-> sane_read"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0273.html">Karl Heinz Kremer: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0287.html">Oliver Rauch: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0244.html">Oliver Rauch: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0287.html">Oliver Rauch: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<HR NOSHADE><P>
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<P>
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Karl Heinz Kremer wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> On Mon, Feb 21, 2000 at 10:39:43PM +0100, Oliver Rauch wrote:
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</EM><BR>
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<EM>> > That would be possible but:
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</EM><BR>
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<EM>> > why should the frontend create a slider when only the discrete values in the
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</EM><BR>
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<EM>> > list are usable?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I don't know, but Dave was asking for it. Maybe some users just find
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</EM><BR>
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<EM>> a slider to easier to use.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Karl Heinz
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --
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</EM><BR>
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<EM>> Karl Heinz Kremer <A HREF="mailto:khk@khk.net?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38B28B90.BC2788B2@minnie.demon.co.uk>">khk@khk.net</A>
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</EM><BR>
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<EM>> <A HREF="http://www.khk.net">http://www.khk.net</A>
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</EM><BR>
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<P>It doesn't bother me at all, I'm just trying to make sure
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<BR>
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that the maximum set of options are open!
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<BR>
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<P>The history goes like this.
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<BR>
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<P>The hardware reports a set of "preferred" resolutions, but
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<BR>
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(in the case of the GT7000 certainly) allows you to use any
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<BR>
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resolution (since the hardware interpolates).
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<BR>
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<P>In sane 1.0.1, you can choose any resolution you want from the
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<BR>
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slider, but it is tricky to set the slider accurately.
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<BR>
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However, if you choose the list, xsane creates a list that
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<BR>
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does not match the "preferred" resolutions that the scanner
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<BR>
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reports (because it has no knowledge of them).
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<BR>
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<P>Then Christian added a patch that forced the resolution to
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<BR>
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jump to the nearest "preferred" resolution, so losing the
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<BR>
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"any resolution will work" feature.
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<BR>
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<P>This causes problems with the list in xsane, because the
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<BR>
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list resolutions clash with the backend resolutions.
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<BR>
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<P>Now Karl has changed the resolution list from a constraint
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<BR>
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to a list, so now it is doubly impossible to choose "any
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<BR>
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resolution".
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<BR>
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<P>To get the best of both worlds is, I realise, difficult.
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<BR>
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What you would need to do is to return both the constraint
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<BR>
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so you can use the slider, plus a list of "preferred"
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<BR>
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resolutions for the xsane list.
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<BR>
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<P>Having said that, in most cases the list is entirely
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<BR>
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adequate and using "odd" resolutions is not a routine
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<BR>
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thing unless you are trying to get a particular sized
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<BR>
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image.
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<BR>
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<P>Again, I am not trying to pick fault, just to add my
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<BR>
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2 pence (UK) worth.
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<BR>
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<P>dave
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<BR>
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<P><PRE>
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--
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Dave Hill, Kempston, Bedford UK <A HREF="mailto:dave@minnie.demon.co.uk?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38B28B90.BC2788B2@minnie.demon.co.uk>">dave@minnie.demon.co.uk</A>
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Sicth munce ago, I cutn't evun spel enjuneer, and now I are one!
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<P><P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Xsane-0.55:%20scan%20resolution%20selection%20(Epson%201200S,%20CVS%20Sane)&In-Reply-To=<38B28B90.BC2788B2@minnie.demon.co.uk>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0284.html">Dave Hill: "RPM build file"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0282.html">Mentore Siesto: "Re: backend fork/reader-process <-> sane_read"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0273.html">Karl Heinz Kremer: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<!-- nextthread="start" -->
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0287.html">Oliver Rauch: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0244.html">Oliver Rauch: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0287.html">Oliver Rauch: "Re: Xsane-0.55: scan resolution selection (Epson 1200S, CVS Sane)"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Tue Feb 22 2000 - 05:28:41 PST</EM>
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