Hi, Can I encourage you to join the JTS mailing list:
https://lists.sourceforge.net/lists/listinfo/jts-topo-suite-user You can also search the list archives and you'll find that questions very similar to this have been discussed previously. Michael On 1 April 2011 09:23, Jody Garnett <[email protected]> wrote: > I think you may be looking at a "clipping operation" then. > You will want to loop over each road; you can perform a union with your > polygon to get just the section of the road that is inside the polygon. > > -- > Jody Garnett > > On Friday, 1 April 2011 at 2:06 AM, mounir younes wrote: > > I have tested coveredBy, intersects, within, and contains and they all fail. > > What I have is a set of line strings over a polygon and I want to delete > linestrings that are outside of the polygon ! how do I do that ? > > Attached is the picture of my problem. In other words I want the parts of > the roads outside the polygon to disappear? should I loop over each part of > each road? > > On Thu, Mar 31, 2011 at 4:52 PM, Jody Garnett <[email protected]> > wrote: > > This is another case where reading the javadocs should I hope help? > - http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/geom/Geometry.html > Both contain and within have some funny language about if the linestring > touches the "edge" of your polygon. > You may want to try the jts coveredBy as an alternative? (and are you sure > you are not trying to test intersects? - ie test if any part of the > linestring is inside the polygon?) > Finally if none of the out of the box methods work for you; you can say > exactly what you need: > - http://docs.geotools.org/latest/userguide/guide/library/jts/dim9.html > -- > Jody Garnett > > On Thursday, 31 March 2011 at 11:16 PM, mounir younes wrote: > > I want to check if a linestring is inside a polygon ! how can I do t that? I > tried .contains and .within but both failed !! can someone help me > ------------------------------------------------------------------------------ > Create and publish websites with WebMatrix > Use the most popular FREE web apps or write code yourself; > WebMatrix provides all the features you need to develop and > publish your website. http://p.sf.net/sfu/ms-webmatrix-sf > _______________________________________________ > Geotools-gt2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > > > > Attachments: > - .png > > ------------------------------------------------------------------------------ > Create and publish websites with WebMatrix > Use the most popular FREE web apps or write code yourself; > WebMatrix provides all the features you need to develop and > publish your website. http://p.sf.net/sfu/ms-webmatrix-sf > > _______________________________________________ > Geotools-gt2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > > ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
