Re: [gdal-dev] OGRCircularString - full circle from three points

2015-01-15 Thread Martin Landa
Hi, 2015-01-15 11:20 GMT+01:00 Even Rouault : > You can describe a full circle with 3 points by specifying (P1,P2,P1) where > P1-P2 defines a diameter of the circle, but there's an ambiguity on the > orientation to follow the CircularString (which shouldn't matter if the > CircularString is part o

Re: [gdal-dev] OGRCircularString - full circle from three points

2015-01-15 Thread Even Rouault
Selon Martin Landa : > Hi, > > I am working with three points which define a full circle. To describe > it using OGRCircularString > I would need five points defining two circular arcs, right? So in my > case to compute an intermediate point for the second arc, right? Martin, You can describe a

[gdal-dev] OGRCircularString - full circle from three points

2015-01-14 Thread Martin Landa
Hi, I am working with three points which define a full circle. To describe it using OGRCircularString I would need five points defining two circular arcs, right? So in my case to compute an intermediate point for the second arc, right? Thanks for clarification! Martin -- Martin Landa http://geo