Re: irreversibly reversing range

[Mojca M. <moj...@gm...>]

On Tue, Jul 21, 2009 at 14:39, Thomas Sefzick wrote:
>
> set xrange [] noreverse

Thanks. But shouldn't it change back automatically?

It automatically changes to "reverse" as soon as one uses [more:less],
but doesn't automatically change back.

I mean ...

> show xrange
	set xrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
> plot [0:10] sin(x)
> show xrange
	set xrange [ * : * ] noreverse nowriteback  # (currently [0.00000:10.0000] )
> plot  sin(x)
# only "currently" changes, but gets restored as soon as one drops
using explicit [:]
> show xrange
	set xrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
> plot [10:0] sin(x)
> show xrange
	set xrange [ * : * ] reverse nowriteback  # (currently [10.0000:0.00000] )
> plot sin(x)
# in my opinion this should become "noreverse" automatically
# unless someone uses "set xrange [] reverse" by explicitely calling it
> show xrange
	set xrange [ * : * ] reverse nowriteback  # (currently [10.0000:-10.0000] )

I didn't check internals, but maybe a separate variable is needed to
track "current reverse" just as there is "current range" after #.

Mojca

> Mojca Miklavec wrote:
>>
>> Hello,
>>
>> I accidentally used "plot [bigger:smaller]", but when I corrected the
>> mistake, the plotting range didn't restore to the appropriate value.
>> Would it make sense to fix that behaviour?
>>
>> Example:
>>
>> # ok
>> plot [0:10] sin(x)
>> # ok
>> plot [10:0] sin(x)
>> # wrong; plots as [10:0]; "set xrange restore" doesn't help; only "reset"
>> does
>> plot [0:10] sin(x)
>>
>> Thanks,
>>     Mojca