Re: Menu building for in-situ (point) data

[Roland Schweitzer <Roland.Schweitzer@xxxxxxxx>]

Ben,

The configuration of the axis ranges controls the valid area on the map 
from which the user can select data.  If you configure the axis for a 
single point, it will be impossible for the user to see and to select 
that point given the limitations of the map size.  Configure your axis 
to cover a small area around the point of interest.  You might also 
consider following the instructions at the bottom of 
http://ferret.pmel.noaa.gov/Ferret/LAS/FAQ/modifying_LiveMap.htm to 
create a more custom custom map background image.

Roland

Ben Burford wrote:

> Hello LASers,
>
> I'm having trouble building menus for station data (time series data at a si
> ngle lat/lon location).  I built the axes the same as I saw in another LAS x
> ml file (DODS_UHSLC_fast_hourly.xml).   I set the x and y axes to step=1 and
> size=1 because this is in-situ data recorded at a point location:
>
> <axes>
> <CEOP_insitu_X units="degree_east" type="x">
>  <arange start="191.143" step="1" size="1"/>
> </CEOP_insitu_X>
> <CEOP_insitu_Y units="degree_north" type="y">
>  <arange start="53.8433" step="1" size="1"/>
> </CEOP_insitu_Y>
> <CEOP_insitu_T units="hours" type="t">
>  <arange start="2002-Oct-01 01:00:00" step="1" size="48"/>
> </CEOP_insitu_T>
> </axes>
>
> When the map applet page came up it appeared OK for about 2 seconds and then
> the page changed to display an error (the file attached to this email is th
> e full text of the error message):
> "javax.servlet.ServletException: xlo cannot be equal to xhi"
>
> It seems to me that xlo would have to be equal to xhi for station data at a 
> lat/lon point.
>
> Anyone know what I'm doing wrong?
>
> Thank you,
>
> Ben
>