Hi Assefa, so e.g. you would have (DD-MM-YYYY):
ROAD_SEGMENT_ID MIN_DATE MAX_DATE 1 01-01-2006 01-04-2006 2 01-03-2006 01-06-2006 etc. So these represent validity, the road segment is valid/existant between MIN_DATE and MAX_DATE. So if I want a map with the situation of 01-05-2006, 1 would not be on it, but 2 would be. If I would want a map with the situation of 15-03-2006 until 15-04-2006, both would be on it. Does this make sense? Best regards, Bart -----Oorspronkelijk bericht----- Van: UMN MapServer Users List [mailto:[EMAIL PROTECTED] Yewondwossen Assefa Verzonden: donderdag 27 juli 2006 3:35 Aan: [email protected] Onderwerp: Re: [UMN_MAPSERVER-USERS] WMS time question Bart, Bart van den Eijnden (OSGIS) wrote: > Hi list, > > looking through the Mapserver WMS time HOWTO I wondered one thing, it is > only possible to have 1 timeitem, a DB column which contains the > date/time. Ofcourse this is pretty okay for satellite images (in a > tileindex) which are taken every X days/months. > > But what happens to road network segments (geometries in Oracle Spatial > for instance) which have a minimum date and a maximum date? So you need to > specify 2 timeitems (one min and one max) for that. Was this use case just > not implemented? > What would the min/max date represent : the valid time extents or simply 2 time fields on which we can do a query ? The wms request allows to send a time value that is then compared to the value inside the timeitem. Would you expect to be able to compare the time request between the 2 timeitmes defined ? > Best regards, > Bart > -- ---------------------------------------------------------------- Assefa Yewondwossen Software Analyst Email: [EMAIL PROTECTED] http://www.dmsolutions.ca/ Phone: (613) 565-5056 (ext 14) Fax: (613) 565-0925 ---------------------------------------------------------------- Disclaimer ************************************************************************ Aan dit bericht kunnen geen rechten worden ontleend. Dit bericht is uitsluitend bestemd voor de geadresseerde. Als u dit bericht per abuis hebt ontvangen, wordt u verzocht het te vernietigen en de afzender te informeren. Wij adviseren u om bij twijfel over de juistheid of de volledigheid van de mail contact met afzender op te nemen. This message shall not constitute any rights or obligations. This message is intended solely for the addressee. If you have received this message in error, please delete it and notify the sender immediately. When in doubt whether this message is correct or complete, please contact the sender. ************************************************************************
