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tbarrou
France
36 Posts |
 Posted - 12/13/2010 : 04:59:35 AM
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Origin Ver. and Service Release (Select Help-->About Origin): V8.1.13.88
Operating System:XP
I am trying to manually rescale a time x-axis. Each time I change the value of "from" or "to" properties, the plots disappeared.
The x values are defined as time, with format ddd:hh:mm:ss (measurement duration of 20 hours on two days).
The properties values in scale tab are shown in format hh:mm.
I guess that for each manual changes (ie 16:00 to 18:30), the day value is removed leading to invisible plots...
How could I define the axis boundary values by myself ?
Thanks a lot for your help.
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greg
USA
1378 Posts |
Posted - 12/13/2010 : 12:08:46 PM
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Try Format : Axis Tick Labels : X Axis Tick Labels
and choose a Display type that includes DDD such as "DDD", "DDD:hh", etc.
Click Apply then go to the Scale tab where From and To should now include the day value.
You should also be able to use a format without DDD by calculating the actual hours as in
3 days 6 hours
is
72:06 hours
or directly use DDD:hh:mm:ss in from or to as in
From 003:06:00, To 003:18:00
But if you use the last example, when you re-open the axis dialog, the hour format will be shown even though you input in DDD:hh:mm format. |
Edited by - greg on 12/13/2010 12:10:32 PM |
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tbarrou
France
36 Posts |
Posted - 12/14/2010 : 05:43:30 AM
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Thank you for the help.
I succeed in rescaling my time x-axis, but it remains quite unclear. Fortunately, autoscale allows to reshow the plot when nothing is visible. from there I used format HH, changing property one by one (even digit by digit) and using Nbdays*24 + time as upper boundary, it works.
I tried the format DDD:hh and I noticed that, after autoscale, it was shown on axis as 39981 (from) and 39982 (to). when double clicking on axis to get properties pop-up menu, the to and from became 000 and 001...
It seems that there is a switch to a relative origin without warnings. it also seems that is depend on the "Rescale" property. I have also seen day number value changing (*2 when changing rescale property).
To conclude this feature seems quite unstable and hence tough to use... |
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greg
USA
1378 Posts |
Posted - 12/14/2010 : 4:17:26 PM
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It isn't at all clear from this post what your situation is, but your 39981 sounds suspiciously like an Excel date that has been erroneously converted into an Origin date - like sometime in June of 2009?
This could be cleared up if you sent the project to tech@
originlab.com.
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Manually Scaling of a Time Axis