[postgis-users] ST_Buffer internals

[Ed Linde]

Is a LINESTRING always a straight line in postgis? Or can there be a
curvature? I didn't get that from the documentation.

On Wed, Mar 14, 2012 at 10:04 AM, Ed Linde <edolinde at gmail.com> wrote:

> Hi All,
> I am wondering how ST_Buffer computes a buffer around say a LINESTRING?
> How can I look at the internals of this?
> Is it possible to achieve the same effect using GDAL's C++ API? I ask
> because I have a very large LIDAR 3-D data set
> which I cannot load into Postgis, but I would certainly want to understand
> how postgis achieves some of it's
> functionality, to get some ideas. Would love to hear some explanations or
> ideas about how to do this!
>
> Cheers,
> Ed
>
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