time series representations in Mapserver
Gerry Creager N5JXS
gerry.creager at TAMU.EDU
Fri Jun 3 16:40:22 PDT 2005
OK... that's a start. However, I'm looking at weather observations,
usually they're from fixed sites (well, excluding the storm chasers:-).
I'm wondering if anything's been done for animation-ish stuff, so I
could display the temperature contours, or, for instance, a changing
landscape of wind barbs...
Thanks, Gerry
David Bitner wrote:
> If all you need is to show all of something that fit within a window
> of time on a single image (ie not an animation) you can either use sql
> statements with GDAL (I've not done this myself) or if you have your
> data in PostGIS all you need to do is add substitution variables into
> your SQL statement.
>
> For example, I display flight tracks at an airport using mapserver and
> I include a startdate and enddate as cgi variables sent to mapserver
> then in my mapfile use percent notation in my mapfile:
> DATA "targets from (select * from flighttrack where stime <= '%eDate%'
> and etime >='%sDate%')as tracks USING UNIQUE opnum USING SRID=-1"
>
> On 6/3/05, Gerry Creager N5JXS <gerry.creager at tamu.edu> wrote:
>
>>We're looking at several applications where we need some time-selection
>>capabilities. Has anyone done this successfully with Mapserver, and if
>>so, might you share some tips?
>>
>>TIA,gerry
>>--
>>Gerry Creager -- gerry.creager at tamu.edu
>>Texas Mesonet -- AATLT, Texas A&M University
>>Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
>>Page: 979.228.0173
>>Office: 903A Eller Bldg, TAMU, College Station, TX 77843
>>
>
>
--
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843
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