HI, sounds like you would need a DB that can store real geographies, to store, index and analyze the geographical objects. This could be commerical, like Oracle Spatial or better open sourece eg. eg. using PostGIS extension of PostGreSQL (also nice because it has a native asSVG SQL function which returns results as SVG objects...).
Plus some bussiness logic to handle the in- and output (eg. Java servlets or similar) and maybe do the more sophisticated network analysis. I can't see were the raster graphics would come in...? -- Barend Köbben International Institute for Geo-information Sciences and Earth Observation (ITC) PO Box 6, 7500AA Enschede (The Netherlands) ph: +31 (0)53 4874253; fax: +31 (0)53 4874335 > -----Original Message----- > From: Irfan A. Khan [mailto:[EMAIL PROTECTED] > Sent: 13 June 2006 12:31 > To: Barend Köbben > Subject: Re: Urgent Request for Information > > Hi Barend, > > I am quite intrigued by your reply and would like to know > more on this > subject and if possible at all get a better feed back with > reference to this > subject. > > Here are my queries and clarifications to my earlier request: > > I am trying to do vectorization in order to create links and > or live network > diagrams that would be intelligently plotted on the map of an > area to grid > networks. For this purpose I would need to work with various > tools such as > Vector Graphics and load them into DB's along with > information on each area > of the network. Since this effort will largly combine the > facilities of a > network management system along with GIS, I am trying to find > a solution > that would allow me to conveniently integrate live data with > GIS imaging. > > Any feedback from yourselfis highly appreciated. > > Sincerely, > Irfan A. Khan > > ----- Original Message ----- > From: "Barend Köbben" <[EMAIL PROTECTED]> > To: "Irfan A. Khan" <[EMAIL PROTECTED]> > Sent: Tuesday, June 13, 2006 12:53 AM > Subject: RE: Urgent Request for Information > > > > HI, > > > > one could probably write a full chapter on this question, > but here's a > > quick and short opinion: > > > >> - Would you recommend using SVG for Geographical layering and > >> mapping systems? > > > > SVG is a format/language for graphical output. It is NOT a > data format for > > storing geograpical data, it lacks things like indexing, > topology, etc. > > for that. Therefore the answer is NO if you mean using SVG > to store and > > edit your data in, but definitly YES if you mean to output > the GIS maps > > with it. > > > >> - Is there a tool that would allow one to convert the JPEG > >> maps to SVG Graphics or how would one convert the JPEG or a > >> simple graphic file such as GIF, JPG, BMP formats to SVG images? > > > > The formats you mention are raster formats. SVG is a vector format. > > Converting raster to vector involves vectorizing or > lin-following oand > > similar techniques. There are many software solutions for > that. But I am > > not sure why you'd want to do that... Typically GIS data is > either vector > > (eg. line/point/polygon objects) or in raster (eg. > satellite images, > > DTMs), for good reasons, and should usually be kept in > their respective > > domains. > > What you seem to mean is have JPEG as the map output and > then convert that > > to SVG. That's illogical. You'd use data stored in GIS > formats and then > > output the maps directly to SVG , or if your GIS software > cant do that, > > to some other VECTOR format and convert that to SVG. > > > >> - Further more if you could kindly recommend a GIS software > >> capability to use SVG for GIS mapping purposes? > > > > See first answer: Some GIS systems can use SVG for their > OUTPUT (the ones > > I know of: ArcGIS, Geomedia and for most others I think > there are native > > or 3rd party solutions). Nowadays with OGC and other Open > Standards you or > > not so much stuck to 1 vendor only, you can mix and/or use > open sourse > > solutions. > > > > hope it helps, > > > > -- > > Barend Köbben > > International Institute for Geo-information > > Sciences and Earth Observation (ITC) > > PO Box 6, 7500AA Enschede (The Netherlands) > > ph: +31 (0)53 4874253; fax: +31 (0)53 4874335 > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Everything you need is one click away. Make Yahoo! your home page now. http://us.click.yahoo.com/AHchtC/4FxNAA/yQLSAA/1U_rlB/TM --------------------------------------------------------------------~-> ----- To unsubscribe send a message to: [EMAIL PROTECTED] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ---- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
