Andrew,
Fine. Let me know if you have any questions on what I did/tried to do.
Steve
Andrew Ross wrote on 2013-06-05:
----------------
>
> Steve,
>
> This patch is pretty straightforward. I've applied it. I'll take a
> close look at the other patch later as it's a little more involved.
>
> Regards
>
> Andrew
>
>
> On Tuesday 04 Jun 2013 18:33:47 Alan W. Irwin wrote:
>> On 2013-05-27 12:55-0000 Schwartz, Steven J wrote:
>>> Dear plplot-devel,
>>>
>>> I attach a patch to fix the mis-alignment of the major axes and
>>> grid
>>
>> in the case of a time-axis ('d' option). This was due to different
>> algorithms being applied to determine the grid and tick location. In
>> essence, the grid didn't subtract off the start time.
>>
>>> While fixing this, I also found a small bug in the tick routine
>>> for
>>
>> the left y-axis again in the case of time ('d') option. This was due
>> to a vpwymi instead of vpwyma at this location. For reasons best
>> known to you, the tick routines work down the left axis and up the
>> right axis, so the two bits of code are different.
>>
>>> I attach some code to test this, plus the before and after outputs.
>>>
>>> Steve
>>>
>>> PS I submitted a separate patch, also to plbox, last week. If it
>>
>> would be helpful, I can generate a patch that combines both sets of
>> fixes. Both are patched against svn 12298.
>>
>>> PPS in case someone is confused. My test rig plots y-axes as both
>>> a
>>
>> float representation of the time (which starts at zero and runs
>> several days) and the plplot time (which starts at t=0 seconds,
>> corresponding to day 001 of the year). So the two plots don't appear
>> to have the same y-limits but are correct.
>>
>>> PPPS I looked at the minor tick grid option ('h'), which works ok
>>
>> but is absent in all cases unless the major grid is also requested.
>> I guess this is probably as intended, but does limit the ability to
>> use different line styles, thicknesses, and/or colours for the major
>> and minor grid.
>>
>> Hi Steve:
>>
>> I am up to my eyes in something else (The "Build Projects" project)
>> so I don't have time to look at your patches for probably several weeks.
>> Since nobody else has responded they are probably in the same
>> situation (one of the perils of an all-volunteer project). However,
>> from your explanation of your first patch, it appears you are fixing
>> an area of PLplot (label exponents) that I have long thought was
>> problematic. In fact, the situation has been so bad I have always
>> gone out of my way to use scaled or logarithmic variables to avoid
>> exponent labels as much as possible. So your first patch and also
>> your second patch to fix a misalignment issue sound useful. So ping
>> us again in a couple of weeks if nobody has evaluated your patches
>> by then.
>>
>> Alan
>> __________________________
>> Alan W. Irwin
>>
>> Astronomical research affiliation with Department of Physics and
>> Astronomy, University of Victoria (astrowww.phys.uvic.ca).
>>
>> Programming affiliations with the FreeEOS equation-of-state
>> implementation for stellar interiors (freeeos.sf.net); the Time
>> Ephemerides project (timeephem.sf.net); PLplot scientific plotting
>> software package (plplot.sf.net); the libLASi project
>> (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
>> and the Linux Brochure Project (lbproject.sf.net).
>> __________________________
>>
>> Linux-powered Science
>> __________________________
>>
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Professor Steven J Schwartz Phone: +44 (0)207 594 7660
Head, Space & Atmospheric Physics Fax: +44 (0)207 594 7772
The Blackett Laboratory Email: [email protected]
Imperial College London Office: Huxley 6M67A
London SW7 2AZ, UK Web: www.sp.ph.ic.ac.uk/~sjs
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