Thierry,
thanks for your feedback - I think Hamish has explained it well, so I
just concur what he has to say:
On Dec 5, 2009, at 5:25 AM, Hamish wrote:
thanks for providing your comments Thierry.
I agree with a fair amount of what you say, specifically education is
more work but far better than reinvention (poorly). there certainly is
a lot of hidden wisdom in the grass code for us to learn from.
a few minor points:
avoid the confusion between "lines" and "arcs" for example.
please, "polyline" is much better than arc. for one thing the name-
space is well and truly taken, for another it's the term the rendering
library uses, and for a last point from a mathematical standpoint an
arc to me is a pure curve not a broken line approximating a curved
line.
(arguing semantics will always be a chore of picking the best from
among imperfect terms)
merging the Sites as Points in the vector was, IMO, an error.
it was not done the way it should have been done, but the old sites
format would have been difficult to maintain and expand.
both have their strengths and their weaknesses, but regardless of that
it is done now and with minor extra-topological ugliness we can store
massive point datasets in the current framework. it's not ideal, and
we've lost users to eg PostGIS because of it, but this is not the
trickiest problem we face so we'll see what future solutions introduce
themselves.
Secondly, the introduction of 3D in vector is not perhaps a great
idea
if you remember what a GIS is mainly for.
important: s/is/has been/
don't limit yourself by what others have done in the past.
to me the interesting thing about grass is not what it can do, but
what it could easily be extended to do.
I work in the water which is inherently a 3D environment, I think I
can
speak for all our geologic, atmospheric, archaeological, and so on
refugees from other GIS when I say that the 3D support is a big reason
we use GRASS.
same here - and it is not just the 3D points, we use 3D vector for
buildings,
roads, rivers - it has been very useful. GRASS has been used for 3D
even 4D
modeling for years,
Helena
to me, the biggest software gap we have from a vector perspective
besdies
the LiDAR problem is to get a mature non-encumbered
reimplimentation of
the Triangle library out there to the world. (see nnbathy threads)
regards,
Hamish
_______________________________________________
grass-dev mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-dev
_______________________________________________
grass-dev mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-dev
