Re: [las_users] Lat/Lon problems

[Bastian Kern <bastian.kern@xxxxxxx>]

Hi Anton,

you're right, this line should be improved.
I think this is a quick & dirty solution. Unfortunately is about one
year ago, I programmed this, but I think I needed a big number of minutes.
Actually the number of minutes should be calculated from the start date
and end date if an end date is supplied (and thi != null).
That was one of the last things I did before the project ended, so I
never implemented this solution.

Regards,
Bastian


On 02/26/2010 05:34 AM, Anton Yoel Buenavista wrote:
> Hi Bastian,
> 
> Thank you for you advice. At the moment, I'm trying to add to your code 
> to support 'seconds'. On the LASConfig.java, on your code for adding 
> minutes, could you kindly explain what this line means?
> 
> minutes = (int) (12 * 8017 * 3);
> 
> How would like to know what the values 12, 8017, and 3 mean as well as 
> how you came about with those values.
> 
> Regards,
> Anton Yoel Buenavista
> 
> -------- Original Message  --------
> Subject: Re: [las_users] Lat/Lon problems
> From: Bastian Kern <bastian.kern@xxxxxxx>
> To: las_users@xxxxxxxx <oar.pmel.las_users@xxxxxxxx>
> Cc: "las_users@xxxxxxxx" <oar.pmel.las_users@xxxxxxxx>
> Date: Thursday, 25 February, 2010 9:58:38 PM
> 
>> Hi,
>>
>> I had problems with time axes with units of minutes some time ago, so I
>> expanded the LASConfig.java file for our internal LAS server. Now we can
>> use the unit "min" for axes like:
>>
>>     <time_axis type="t" units="min">
>>        <arange start="01-AUG-2006 11:12" step="12" size="1905"
>> end="17-AUG-2006 08:12"/>
>>     </time_axis>
>>
>> If you don't fear editing the Java source code you can use it, but have
>> to change your LASUI.js (in /WebContent/JavaScript/ui/) in line 1524 from:
>>
>> this.refs.DW = new
>> DateWidget(this.state.grid.getLo('t'),this.state.grid.getHi('t'));
>>
>> to:
>>
>> var scale = 1;
>> var tUnits = this.state.grid.getUnits('t');
>> var tDelta = this.state.grid.getDelta('t');
>> if (tUnits == "hour") {
>>    scale = 60;
>>    if ((24 % tDelta) != 0) {
>>      tDelta = 1;
>>    }
>> }
>> else {
>>    if  (tDelta == null || tUnits == "day") {
>>      tDelta = 1440;
>>    }
>>    if (tUnits == "min") {
>>      if ((1440 % tDelta) != 0) {
>>        tDelta = 1;
>>      }
>>    }
>> }
>> this.refs.DW = new
>> DateWidget(this.state.grid.getLo('t'),this.state.grid.getHi('t'),(tDelta
>> * scale));
>>
>> and replace /gov/noaa/pmel/tmap/las/jdom/LASConfig.java by the attached
>> LASConfig.java.
>> You should backup all files first!
>>
>> I hope it works,
>> Bastian
>>
>> On 02/24/2010 05:32 PM, Roland Schweitzer wrote:
>>> Anton,
>>>
>>> Anton Yoel Buenavista wrote:
>>>> Hello again everyone,
>>>>
>>>> For an update on my problem, I was able to display  the variables
>>>> which only depend on lat and lon using the documentation here:
>>>> http://ferret.pmel.noaa.gov/LAS/documentation/installer-documentation/adding-curvilinear-data/.
>>>> Thank you Roland for your guidance on that.
>>>>
>>>> However, I am faced with a new problem. The remaining variables depend
>>>> on lat, lon, and a time dimension as well as you can see in the sample
>>>> variable definition below:
>>> [...]
>>>>            <time-t-id-01ced4ab23 type="t" units="minute">
>>>>              <arange start="2008-01-23 00:00:00" size="84" step="15" />
>>>>            </time-t-id-01ced4ab23>
>>>>          </axes>
>>>>
>>>> I have attached a screenshot of the error being returned when the plot
>>>> is trying to be loaded. Your kind help on the matter is greatly
>>>> appreciated!
>>> Unfortunately the LAS user interface time widget does not understand
>>> time increments of less than one hour.  We'll be working on improving
>>> that in future versions, but for now you'll need to create your time
>>> axis by listing each individual time value.  I know it's not practical
>>> for all cases, but it's the only solution for the immediate future.  For
>>> example:
>>>
>>>     <time-t-id-01ced4ab23 type="t" units="minute">
>>>          <v>2008-01-23 00:00:00</v>
>>>          <v>2008-01-23 00:15:00</v>
>>>          <v>2008-01-23 00:30:00</v>
>>>          <v>2008-01-23 00:45:00</v>
>>>          <v>2008-01-23 01:00:00</v>
>>>
>>>
>>>          [...]
>>>
>>>     </time-t-id-01ced4ab23>
>>>
>>> Roland
>>>


-- 
---------------------------------------------------------------
Bastian Kern (Dipl.-Met.)
Max Planck Institute for Chemistry       phone:++49-6131-305452
Atmospheric Chemistry Department         fax:  ++49-6131-305436
Johann-Joachim Becher Weg 27
55128 Mainz
Germany                             mailto:bastian.kern@xxxxxxx
            **Please note the new email address!**
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