See demo/introduction for geometry -> feature examples. On Wed, 2007-04-11 at 16:07 +0100, Swan Jerry wrote: > What's the simplest way to create a Feature from a LineSegment? > > >Any chance you want to help me out by adding this to the code sample > page? > Someone seems to have beaten me to it while I was on holiday ;-) > > Jerry. > > -----Original Message----- > From: Justin Deoliveira [mailto:[EMAIL PROTECTED] > Sent: 05 April 2007 15:52 > To: Swan Jerry > Cc: [email protected] > Subject: Re: [Geotools-gt2-users] Simple graph question > > Hi Jerry, > > Once the graph is built each, edge#getObject() will hold the original > feature used to built it. So something like > > for ( Iterator e = graph.getEdges().iterator(); e.hasNext(); ) { > Edge edge = (Edge) e.next(); > Feature feature = (Feature) e.getObject(); > .. > } > > Good question Jerry. Any chance you want to help me out by adding this > to the code sample page? > > -Justin > > Swan Jerry wrote: > >> I have updated that page with a more recent example > > Thanks. Given a graph that has been constructed in this fashion, how > > should I convert it back into a FeatureCollection? > > > > I ask because the 'obvious' solution, i.e. using > > someFeatureCollection.addAll( graphGetNodes() ) and addAll( > > graph.getEdges() ), gives a ClassCastException from BasicNode to > > Feature. > > > > Jerry. > > > > -----Original Message----- > > From: Justin Deoliveira [mailto:[EMAIL PROTECTED] > > Sent: 04 April 2007 19:40 > > To: Swan Jerry > > Cc: [email protected] > > Subject: Re: [Geotools-gt2-users] Simple graph question > > > > Hi Jerry, > > > > I have updated that page with a more recent example of how to build a > > graph from features on geotools 2.3.x and above. > > > > Note, i realized that there was a big that has been fixed on trunk, > > which i just back ported to 2.3.x. You can get around it though by > > using > > lineStringGen.getGraph() instead of featureGen.getGraph(). > > > > If you are working from sources though just update and the example > > should be just fine. > > > > Let me know how it works for you. > > > > -Justin > > > > Swan Jerry wrote: > >> Given a FeatureCollection, I'd like to build an (undirected) graph > >> directly corresponding to its feature geometry, i.e. having a node > >> for > > > >> each point. > >> > >> Would someone kindly recommend the simplest graph building strategy > >> for this? > >> > >> In particular, the example at > >> http://docs.codehaus.org/display/GEOTOOLS/Graphs doesn't appear to be > > >> current - AFAIK there's no org.geotools.graph.build.LineGraphBuilder > >> in GT2.3.0 (whearas there are of course > >> org.geotools.graph.build.line.BasicLineGraphBuilder etc). > >> > >> Thanks once more, > >> > >> Jerry. > >> > >> This message has been checked for viruses but the contents of an > >> attachment may still contain software viruses, which could damage > >> your > > computer system: > >> you are advised to perform your own checks. Email communications with > > >> the University of Nottingham may be monitored as permitted by UK > > legislation. > >> > >> --------------------------------------------------------------------- > >> - > >> --- Take Surveys. Earn Cash. Influence the Future of IT Join > >> SourceForge.net's Techsay panel and you'll get the chance to share > >> your opinions on IT & business topics through brief surveys-and earn > >> cash > >> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DE > >> V DEV _______________________________________________ > >> Geotools-gt2-users mailing list > >> [email protected] > >> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > > > > > > -- > > Justin Deoliveira > > The Open Planning Project > > [EMAIL PROTECTED] > > > > This message has been checked for viruses but the contents of an > > attachment may still contain software viruses, which could damage your > computer system: > > you are advised to perform your own checks. Email communications with > > the University of Nottingham may be monitored as permitted by UK > legislation. > > > > > > ---------------------------------------------------------------------- > > --- Take Surveys. Earn Cash. Influence the Future of IT Join > > SourceForge.net's Techsay panel and you'll get the chance to share > > your opinions on IT & business topics through brief surveys-and earn > > cash > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEV > > DEV _______________________________________________ > > Geotools-gt2-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > > > -- > Justin Deoliveira > The Open Planning Project > [EMAIL PROTECTED] > > This message has been checked for viruses but the contents of an attachment > may still contain software viruses, which could damage your computer system: > you are advised to perform your own checks. Email communications with the > University of Nottingham may be monitored as permitted by UK legislation. > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Geotools-gt2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
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