Hi All
I tried to build grass421v19 from source on Linux but stumbled om missing
libvect.a and libdig2.a, supposed to be found in src/libes/LIB.linux
(needed at least by s.to.vect). I compiled all libraries in src/libes
manually, but to no help. I also grepped for libvect.a in all makefiles in
the distribution tree, but found no indication of libvect.a being built
anywhere. Did I miss something or is there something missing from the
distribution tree?
MHu
Dear Sir/Madam,
We want to create contour map of 1m from 250m mesh raster map.
Does anyone have a creative solution?
Our objective is to simulate the area of inundation from 1m rise of
sea level. We have a limitation data and somehow we must infer the
elevation of 1m range.
///////////~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Akihiko Machida, Senior Planner,
Planning Section, Regional Science Institute
4-13, Kita24 Nishi2, Kita-ku, Sapporo 001-0024
JAPAN
Tel: +81-11-717-6660, Fax: +81-11-757-3610
Akihiko Machida wrote:
Dear Sir/Madam,
We want to create contour map of 1m from 250m mesh raster map.
Does anyone have a creative solution?Our objective is to simulate the area of inundation from 1m rise of
sea level.e$B!!e(J We have a limitation data and somehow we must infer thee(J
elevation of 1m range.
e$B!!e(
I think that you may have some trouble getting a result that makes nay sense
if your elevation data is at 250m spacing. That grid was probably built from
quite sparse data which may have had a vertical accuracy of 50m or more.
I would be trying to get the original spot height data that was used to build
the 250m raster, and exporting that to another application such as MIPS, and
then building a TIN and extracting a fine reolution grid from that. This way
at least you will be able to interpolate better between known points in the
original data, and the finer the grid the smaller the error in flooded area.
The large 250 grid data can lead to large errors in coverage for each m rise
in water level.
Hope this helps.
--
Terry Duell