On 28-2-2013 1:03, John Lilley wrote: I see in the released buffer() algorithm, there is a chord length argument: void buffer(Input const & geometry_in, Output & geometry_out, Distance const & distance, Distance const & chord_length = -1) But I can't seem to find an equivalent for buffer_inserter<> with a join_round strategy. How do I set the chord length or number of approximating points?
It was there but not yet exposed. I did put this in the constructor now. You can now construct the join_round with the number of points for a full circle. The default is 100. Furthermore I also added support for multi_linestring types. Note that the so-called end-cap of linestring types is not yet supported, they currently always have square ends. That will be implemented later. What is (was) already there is the asymmetric distance. So this (I put all these things together in the sample below) delivers the following picture. Original line is dotted, buffer is green.
Barend, I appreciate your efforts and responsiveness! Unfortunately we have to ship a release this month and boost.geometry is looking not finished enough yet. I'll be using the Clipper library, which work fairly well if I map my coordinates onto integers. Cheers --john