time series representations in Mapserver

[Kevin Grootendorst]

Thanks for clearing that up for me.  I'll use my mediocre programming
skills to see if I can get it to work.

Kevin

On Tue, 28 Jun 2005 08:47:14 -0500, David Bitner <osgis.lists at GMAIL.COM>
wrote:

>No, you do not need WMS at all.  It is just that Mapbuilder already
>has a client interface set up that does time animations.
>
>It is very possible to animations just using Mapserver.  All you need
>in your mapfile is the ability to draw one single map for a single
>time.  The way you do your animation is by calling that mapfile
>several times to create different images with each different time (you
>can control the time by using cgi variables and the %% notation in
>either the filter or the postgis query for your layer with time
>sensitive data as described in previous message in this thread) and
>then use javascript to switch between those images.
>
>On 6/28/05, Kevin Grootendorst <kgrootendorst at baird.com> wrote:
>> So in order to view time series data (as an animation) within a mapserver
>> application, I need to define the layer as a WMS layer?  Why can't I set
up
>> a non-WMS layer with Time support? (I guess because MS doesn't support
that
>> yet?)
>> Does anyone have a valid/working .map file with time series support?
>>
>> Kevin
>>
>>
>> On Thu, 23 Jun 2005 16:21:43 -0500, David Bitner <osgis.lists at GMAIL.COM>
>> wrote:
>>
>> >Gerry,
>> >
>> >Did you ever get anything figured out for this?  I just came upon this
>> >thread again.  if you take Uli's reccomendation and go with the WMS
>> >Time approach, you can build upon whats been done by the mapbuilder
>> >folks (http://mapbuilder.sourceforge.net/). Otherwise if you look on
>> >pure javascript resources for information on preloading images (just
>> >manipulate the time string that you send to the map requests) and
>> >animating them using javascripts setTimeout function.  Most of the
>> >resources for this are for creating rotating banners on web pages, but
>> >the idea holds perfectly well for creating animated maps.  I know a
>> >couple NWS sites use this approach for radar.  I used this on the NWS
>> >Hydrologic Remote Sensing Center (http://www.nohrsc.nws.gov) site to
>> >animate snow pack (not a mapserver backend, but same idea).
>> >
>> >David
>> >> >
>> >> > 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
>> >> >>>
>> >> >>
>> >> >>
>> >> >
>> >>
>> >>
>> >> --
>> >> geOps GeoInformatics
>> >> D-79100 Freiburg
>> >>
>>