Hi Mihis,<br><br>The problem is, you are trying to adapt a structure which is fundamentally read-only. I mean the calculated curve itself is read only, and that&#39;s what you&#39;re trying to adapt to the linestring concept, as opposed to adapting the inner segment used for the curve calculation.<br>
<br>So as you have guessed, only the non-mutating algorithms will be available to you (things like distance, length, etc). It wouldn&#39;t make any sense, by definition, to try to mutate your curve since it&#39;s a calculated thing so modifying any of its points would potentially break the validity of the curve in regards to the algorithm that generated it.<br>
<br>However, I still understand the value of using algorithms like buffer and simplify on your calculated curve. You&#39;ll simply have to use a different, mutable, non-calculated structure as the output. Could be the Boost.Geometry linestring class or anything else. Anything that fulfills the linestring concept and is not a read-only calculated thing. And you can then use it for whatever further processing you need to do with the simplified/bufferized/mutated curve. Of course this will never be fed back to the original curve class since, as we said, it&#39;s a calculated and immutable thing.<br>
<br>Does that make sense at all?<br><br>Regards<br>Bruno<br><br>