Re: [GRASS-user] bug or buffer for polygons impossible ?
Yvan Paillé wrote: I try to create a buffer around a polygon with the following commande: v.buffer input=... output= distance=10 This creates the buffer visible in the following picture: http://dl.lyon.cemagref.fr/get?k=yQnyOaVULt3QQmOSSVa Why is the buffer not uniform? (Regarding the upper left corner, one corner misses). http://dl.lyon.cemagref.fr/get?k=IF0oiMFkqyVC9L9SCeA http://dl.lyon.cemagref.fr/get?k=zCtzYAQDCXMYdz6TUoE http://dl.lyon.cemagref.fr/get?k=IWMhOGONCrDQevnMRck Other errors... Is this a bug in the v.buffer function, or do I try to use the buffer function on polygons, which is not possible? I'm working on WinGRASS 6.4. Many thanks for any help! it's a bug. see https://trac.osgeo.org/grass/ticket/90 usually the effect is minor but maybe it is much worse on MS Windows?? (I haven't tried) Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
RE: [GRASS-user] bug or buffer for polygons impossible ?
Hello, I try to create a buffer around a polygon with the following commande: v.buffer input=... output= distance=10 I'am using the windows osgeo4w version and the buffer around a polygon works fine even for complex polygons. By the images it looks like you have overlaping or duplicated boundaries. Can you send the full command and a image of the vector editing of these polygons? Regards. Pablo. _ Quer 25GB de armazenamento gratuito na Internet? Conheça agora o SkyDrive. http://www.eutenhomaisnowindowslive.com.br/?utm_source=MSN_Hotmailutm_medium=Taglineutm_campaign=InfuseSocial___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
RE: [GRASS-user] bug or buffer for polygons impossible ?
Hi, try:v.buffer type=area input=polygone593 output=buffer_593 distance=10 there are also the -s option for straight corners. I have tryed it here, look at the images... Pablo Hello, The full command is : v.buffer input=polygone593 output=buffer_593 distance=10 You can find the image on: http://dl.lyon.cemagref.fr/get?k=HMyqWktbfm9K2ggiZqM My buffer is uniform but this function is ok with a polyline... Yvan _ Quer deixar seus vídeos mais divertidos? Com o Movie Maker isso fica fácil. http://www.windowslive.com.br/public/tip.aspx/view/87?product=4ocid=Windows Live:Dicas - Movie Maker:Hotmail:Tagline:1x1:Titulo Legendas Creditosattachment: buffer1.jpgattachment: buffer2.jpg___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] bug or buffer for polygons impossible ?
Hello, I try to create a buffer around a polygon with the following commande: v.buffer input=... output= distance=10 This creates the buffer visible in the following picture: http://dl.lyon.cemagref.fr/get?k=yQnyOaVULt3QQmOSSVa Why is the buffer not uniform? (Regarding the upper left corner, one corner misses). http://dl.lyon.cemagref.fr/get?k=IF0oiMFkqyVC9L9SCeA http://dl.lyon.cemagref.fr/get?k=zCtzYAQDCXMYdz6TUoE http://dl.lyon.cemagref.fr/get?k=IWMhOGONCrDQevnMRck Other errors... Is this a bug in the v.buffer function, or do I try to use the buffer function on polygons, which is not possible? I'm working on WinGRASS 6.4. Many thanks for any help! Yvan ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
