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
