zoom steps by a ratio of qrt(2)=1,414213562

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oops66
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zoom steps by a ratio of qrt(2)=1,414213562

Post by oops66 » Sat Sep 12, 2009 7:45 pm

Hello,
Request to have a customized option to change the zoom steps by a ratio of qrt(2)=1,414213562 (current step * 1,414213562 = next step) or (current step / 1,414213562 = previous step) .
Because this ratio is the same as the paper size between the formats sizes ( ... A5 to A4 to A3 to A2 .. to A0) so it would be very easy by this way to see the result on the screen for an other paper size format before the print.

So have the ability to change the currents steps 7%,10%,15%,...,1600% to the steeps 1.75%,..7%,9.9%,14%,...,1792%

current-> new
------> 1.75%
------> 2.47%
------> 3.50%
------> 4.94%
7% --> 7.00%
10% --> 9.90%
15% --> 14.00%
20% --> 19.80%
25% --> 28.00%
30% --> 39.60%
50 --> 56.00
70 --> 79.20
100--> 112.00
150--> 158.40
200--> 224.00
300--> 316.78
400--> 448.00
500--> 633.57
600--> 896.00%
700%--> 1267.13%
800%--> 1792.00%
1200 %
1600%
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rra
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Re: zoom steps by a ratio of qrt(2)=1,414213562

Post by rra » Mon Sep 14, 2009 6:16 am

Good idea, I allready posted a request some time ago, to zoom in relative steps, with selectable step-size,
eg. 1.41 x ;
in your case I think it would be better to normalize the zooming around 100% ,
the zoom-table would then be:

...
6.25
8.8
12.5
17.7
25
35
50
71
100
141
200
283
400
566
800
1131
1600
...

René

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oops66
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Re: Relative zoom steps by a ratio of qrt(2)=1,414213562

Post by oops66 » Mon Sep 14, 2009 9:09 am

Why not, it's better, but not necessary because if you type the key "*" then you have automaticaly the 100% zoom step, then after if you zoom down or up (with this relative zoom step behavior) you will meet your 100% --> 141% --> 200% --> and so zoom steps.
And if you zoom down from this 100% zoom step (key "*"), you will also have automaticaly : 100% --> 71% --> 50% --> and so....

But you are right, a selectable step-size ratio is better (with maybe 1.4142 by default).

Plus, by this way (a relative zoom step behavior), the zoom behavior will also be more smooth.
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rra
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Re: zoom steps by a ratio of qrt(2)=1,414213562

Post by rra » Mon Sep 14, 2009 10:32 am

Plus, by this way (a relative zoom step behavior), the zoom behavior will also be more smooth.
Yes, that is the big advantage, in the current version the zooming steps aren't allways "smooth" .
By the way: I wasn't aware of the "*" shortcut, might be handy .

René

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oops66
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Re: zoom steps by a ratio of qrt(2)=1,414213562

Post by oops66 » Mon Sep 14, 2009 11:20 am

rra wrote:...
By the way: I wasn't aware of the "*" shortcut, might be handy .
René
Yes...
FI - numpad keys:
"*" -->for the 100% zoom step
"/" -->fit image to window
"1" -->fit image to window width
"3" -->fit image to window height
"Ctrl" + "-" --> real size
"-" and "+" (or scroll the middle mouse button) --> zoom out / zoom in

sketch a square with the mouse --> to zoom in and fit this area into the window (I hope in a future XnView version too) ???
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oops66
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Re: zoom steps by a ratio of qrt(2)=1,414213562

Post by oops66 » Mon Nov 02, 2009 10:07 pm

Custom Relative zoom steps by a ratio done under v1.97
Thank you Pierre
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Re: zoom steps by a ratio of qrt(2)=1,414213562

Post by Clo » Tue Nov 03, 2009 10:13 am

:arrow: oops66

:) Hello !
Custom Relative zoom steps by a ratio done under v1.97
Thank you Pierre
• With a damper : The strings are still in English in the French DLL… :|

:mrgreen: KR
Claude
Clo
Old user ON SELECTIVE STRIKE till further notice

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oops66
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Re: zoom steps by a ratio of qrt(2)=1,414213562

Post by oops66 » Tue Nov 03, 2009 11:02 am

Clo wrote:...• With a damper : The strings are still in English in the French DLL… :...Clo
Hello Clo,
Right here too.

added here:
http://newsgroup.xnview.com/viewtopic.p ... 885#p78885
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