AW: [Qgis-developer] Re: Curved line in QGIS, how i can anticipate CIRCULARSTRING SQL-MM3 specification in QGIS?

[Ziegler Stefan]

Hi 
 
I think that curved line support is not that important to most of the
users. I really would like to see this feature in QGIS. But this is
something that needs some funding and as far as I know some changes deep
in the core. Something for QGIS 2.x I guess. 
 
regards
Stefan

   -----Ursprüngliche Nachricht-----
   Von: reyman [mailto:reyman64 at gmail.com]
   Gesendet am: Sonntag, 17. Juli 2011 01:30
   An: qgis-developer at lists.osgeo.org
   Betreff: [Qgis-developer] Re: Curved line in QGIS, how i can
   anticipate CIRCULARSTRING SQL-MM3 specification in QGIS?
   

   Hello community, 
   No answer or idea to help me on this problem ?
   Best regards,
   SR
   
   
   On Wed, Jul 13, 2011 at 5:00 PM, reyman < reyman64 at gmail.com> wrote:
   

      Hello devs,
      
      I'm working on a project to draw simple arc/curves lines to
      represent (a lot of ) flow between two points. 
      I think it's a good idea to use the new geometry type
      "CIRCULARSTRING" implemented in Postgis to store/edit the
      arc/curve, one problem ... 
      QGIS can't actually draw curved lines...
      
      Actually here my few and poor idea to resolve this problem :
      
      > I use Stefan Ziegler QGIS plugin CADTOOLS to compute and draw
      any WKT using the CIRCULARSTRING geometry type, with few point to
      limit the complexity of polylines generated
      
      > I'm waiting for the next QGIS dev version, because it seems
      developper want to implement this function ( cf QGIS Developer
      Meeting in Zurich 2011 or http://www.qgis.org/wiki/KCube-developer
      )
      
      > I'm trying to develop (in python or it's only possible in C++ ?)
      a new drawing extension which implement one function to draw pure
      bezier or simple arc with CIRCULARSTRING geometry in input ?
      
      So QGIS dev, what's your opinion about that, or your next plan if
      you have a roadmap to implement these functionnality ? 
      If you want to develop this functionnality in this summer, i'm ok
      to help and debug the code with you ...
      
      Ps: i have post a question in gis stackexchange,  but no answer
      actually ...
       
      http://gis.stackexchange.com/questions/12007/how-i-can-draw-or-edi
      t-curved-lines-in-free-gis
      
      Thanks a lot GIS community
      SR.
      
      -- 
      
      
      




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